Dr. Ruby Samuel John , MD
Internal Medicine โข The Woodlands, TX
10020 Research Forest Dr
The Woodlands, TX 773546780
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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NPI assigned on August 15, 2008; this date does not establish years in practice.
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Published CMS data list 1,584 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 99214 โ Established patient outpatient office visit: 178 service units.
- 36415 โ Insertion of needle into vein for collection of blood sample: 148 service units.
- G2211 โ Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's: 138 service units.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPTยฎ only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See all 27 records in the table ยท Guide: How to read Medicare Part B data
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Published CMS data list 1,972 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Levothyroxine Sodium โ 125 prescription fills, including refills.
- Losartan Potassium โ 111 prescription fills, including refills.
- Atorvastatin Calcium โ 103 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 60 records in the table ยท Guide: How to read Medicare Part D prescriber data
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More Medicare Part B services than 75% of clinicians listed under Internal Medicine in The Woodlands, TX (2024, 23 clinicians with data). Median for this group: 886. Middle half: 342 to 1,553.
More Medicare Part B services than 75% of clinicians listed under Internal Medicine in Texas (2024, 5,423 clinicians with data). Median for this group: 645. Middle half: 277 to 1,322.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 421 in 2022 to 1,584 in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2022โ2024.
Practice Location & Contact Primary Location
10020 Research Forest Dr
The Woodlands, TX 773546780
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
CMS Doctors and Clinicians lists 1 group name: Westwood Primary Care, Pllc. See the list
Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
2005
What Public CMS Data Show
Internal Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
108 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider, 2024.
Medicare-allowed amount
About $50,255 in 2024
The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
What this does not show: Medicare-allowed amount
This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024.
Paid by Medicare
About $38,401 in 2024
The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
What this does not show: Paid by Medicare
This is not the clinician's income and not a measure of quality.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024.
30-day fills
4,908 standardized 30-day fills in 2024
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$217,263 in 2024
The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024.
Open Payments general payments, program year 2025
All general payments: $167.40 across 8 records.
By nature of payment
- Food and Beverage: $167.40 across 8 records.
Reporting-company totals (3 largest of 7)
- Salix Pharmaceuticals, a division of Bausch Health US, LLC: $38.96 across 2 records.
- Novo Nordisk Inc: $29.23 across 1 record.
- Dexcom, Inc.: $25.01 across 1 record.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).
Years since graduation
21 years (graduated 2005)
CMS Doctors and Clinicians data list 2005 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File.
NPI first issued
2008
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Accepts Medicare assignment
CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, โDoes your provider accept Medicare as full payment?โ
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Dr. John has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Dr. John as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in The Woodlands and Texas
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 75% of clinicians listed under Internal Medicine in The Woodlands, TX (2024, 23 clinicians with data). Median for this group: 886. Middle half: 342 to 1,553.
More Medicare Part B services than 75% of clinicians listed under Internal Medicine in Texas (2024, 5,423 clinicians with data). Median for this group: 645. Middle half: 277 to 1,322.
Medicare-allowed amount
Close to the middle for clinicians listed under Internal Medicine in The Woodlands, TX (2024, 23 clinicians with data). Median for this group: $66,717. Middle half: $45,930 to $130,110.
Close to the middle for clinicians listed under Internal Medicine in Texas (2024, 5,423 clinicians with data). Median for this group: $61,221. Middle half: $27,420 to $115,826.
Paid by Medicare
A lower Medicare payment amount than 60% of clinicians listed under Internal Medicine in The Woodlands, TX (2024, 23 clinicians with data). Median for this group: $50,978. Middle half: $35,260 to $100,627.
Close to the middle for clinicians listed under Internal Medicine in Texas (2024, 5,423 clinicians with data). Median for this group: $47,501. Middle half: $20,446 to $90,051.
Medicare Part D prescriptions
Close to the middle for clinicians listed under Internal Medicine in The Woodlands, TX (2024, 23 clinicians with data). Median for this group: 1,972. Middle half: 353 to 4,233.
Close to the middle for clinicians listed under Internal Medicine in Texas (2024, 5,674 clinicians with data). Median for this group: 828. Middle half: 121 to 4,824.
Part D drug cost
Close to the middle for clinicians listed under Internal Medicine in The Woodlands, TX (2024, 23 clinicians with data). Median for this group: $110,414. Middle half: $5,550 to $485,048.
A higher Part D drug cost than 60% of clinicians listed under Internal Medicine in Texas (2024, 5,674 clinicians with data). Median for this group: $64,859. Middle half: $4,211 to $436,775.
32 active clinicians are listed under Internal Medicine with a practice address in The Woodlands, TX (9,191 in Texas).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in The Woodlands
31.2% of these 32 clinicians have the CMS telehealth indicator.
71.9% of these 32 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services increased 276% from 421 in 2022 to 1,584 in 2024.
- 2022: 421
- 2023: 1,474
- 2024: 1,584
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Medicare-allowed amount
Medicare-allowed amount increased 35% from $37,184 in 2022 to $50,255 in 2024.
- 2022: $37,184
- 2023: $52,056
- 2024: $50,255
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Paid by Medicare
Paid by Medicare increased 41% from $27,151 in 2022 to $38,401 in 2024.
- 2022: $27,151
- 2023: $40,573
- 2024: $38,401
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 5378% from 36 in 2020 to 1,972 in 2024.
- 2020: 36
- 2021: 76
- 2022: 897
- 2023: 1,800
- 2024: 1,972
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30-day fills
30-day fills increased 7842% from 62 in 2020 to 4,908 in 2024.
- 2020: 62
- 2021: 168
- 2022: 2,259
- 2023: 4,454
- 2024: 4,908
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Part D drug cost
Part D drug cost went from $971 in 2020 to $217,263 in 2024.
- 2020: $971
- 2021: $1,282
- 2022: $31,643
- 2023: $241,821
- 2024: $217,263
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $52.20 in 2019 to $167.40 in 2025.
- 2019: $52.20
- 2022: $419.42
- 2023: $394.37
- 2024: $583.40
- 2025: $167.40
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo ยท Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2025 (payments made January 1 โ December 31, 2025): fewer than 11 records totaling $167.40.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Novo Nordisk Inc |
Food and Beverage
In-kind items and services
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Wegovy | General | $29.23 |
| Dexcom, Inc. |
Food and Beverage
In-kind items and services
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Dexcom G6 Transmitter | General | $25.01 |
| Sanofi and Genzyme US Companies |
Food and Beverage
In-kind items and services
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TZIELD | General | $23.15 |
| Medtronic, Inc. |
Food and Beverage
In-kind items and services
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INCEPTIV | General | $23.03 |
| Salix Pharmaceuticals, a division of Bausch Health US, LLC |
Food and Beverage
In-kind items and services
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XIFAXAN | General | $20.36 |
| Salix Pharmaceuticals, a division of Bausch Health US, LLC |
Food and Beverage
In-kind items and services
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XIFAXAN | General | $18.60 |
| Boehringer Ingelheim Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
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JARDIANCE | General | $17.78 |
| Dynavax Technologies Corporation |
Food and Beverage
In-kind items and services
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Heplisav-B | General | $10.24 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Performed Procedures & Service Volume
CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2021โ2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners โ by Provider and Service data, 2022โ2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
| HCPCS Code | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
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99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
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178 | 88 | $401.00 | $122.26 |
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36415
Insertion of needle into vein for collection of blood sample
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148 | 80 | $15.00 | $8.65 |
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G2211
Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's
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138 | 73 | $47.25 | $15.73 |
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80053
Blood test, comprehensive group of blood chemicals
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118 | 75 | $70.00 | $10.35 |
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85025
Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count
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89 | 71 | $70.00 | $7.61 |
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84443
Blood test, thyroid stimulating hormone (tsh)
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84 | 63 | $100.00 | $16.46 |
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80061
Blood test, lipids (cholesterol and triglycerides)
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78 | 57 | $80.00 | $13.12 |
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83036
Hemoglobin a1c level
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76 | 55 | $70.00 | $9.52 |
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81003
Automated urinalysis test
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69 | 59 | $70.00 | $2.20 |
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99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
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61 | 45 | $276.00 | $86.74 |
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82306
Vitamin d-3 level
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58 | 49 | $200.00 | $29.01 |
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83735
Magnesium level
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55 | 48 | $70.00 | $6.57 |
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82607
Cyanocobalamin (vitamin b-12) level
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52 | 44 | $100.00 | $14.78 |
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82728
Ferritin (blood protein) level
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47 | 38 | $70.00 | $13.36 |
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83550
Iron binding capacity
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47 | 38 | $70.00 | $8.57 |
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83540
Iron level
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46 | 38 | $70.00 | $6.34 |
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99215
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more
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33 | 26 | $538.00 | $172.40 |
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84439
Thyroxine (thyroid chemical), free
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30 | 25 | $70.00 | $8.84 |
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84481
Thyroid hormone, t3 measurement, free
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23 | 20 | $95.00 | $16.60 |
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G0444
Annual depression screening, 5 to 15 minutes
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23 | 23 | $68.00 | $17.80 |
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96372
Injection of drug or substance under skin or into muscle
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22 | 11 | $53.00 | $13.60 |
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82043
Urine microalbumin (protein) level
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20 | 16 | $50.00 | $5.66 |
|
82570
Creatinine level to test for kidney function or muscle injury
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20 | 16 | $50.00 | $5.08 |
|
93000
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report
|
18 | 16 | $100.00 | $13.61 |
|
G0446
Annual, face-to-face intensive behavioral therapy for cardiovascular disease, individual, 15 minutes
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18 | 18 | $98.00 | $24.07 |
(top 25 shown)
Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2024.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Levothyroxine Sodium | Levothyroxine Sodium | 125 | 10,976 | $1,128.14 | 37 |
| Losartan Potassium | Losartan Potassium | 111 | 9,909 | $1,117.43 | 40 |
| Atorvastatin Calcium | Atorvastatin Calcium | 103 | 9,130 | $832.26 | 34 |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 78 | 6,534 | $637.13 | 26 |
| Amlodipine Besylate | Amlodipine Besylate | 76 | 6,818 | $374.97 | 26 |
| Escitalopram Oxalate | Escitalopram Oxalate | 67 | 4,234 | $865.84 | 15 |
| Metoprolol Succinate | Metoprolol Succinate | 67 | 5,390 | $784.50 | 24 |
| Metformin Hcl | Metformin Hcl | 65 | 5,800 | $325.06 | 19 |
| Pantoprazole Sodium | Pantoprazole Sodium | 60 | 4,800 | $673.46 | 17 |
| Metformin Hcl Er | Metformin Hcl | 59 | 4,411 | $225.05 | 18 |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 55 | 2,005 | $1,187.90 | 23 |
| Jardiance | Empagliflozin | 54 | 3,330 | $64,756.17 | 16 |
| Ozempic | Semaglutide | 52 | 2,184 | $64,544.17 | โ |
| Trazodone Hcl | Trazodone Hcl | 49 | 3,570 | $324.29 | 14 |
| Carvedilol | Carvedilol | 44 | 3,565 | $249.17 | 15 |
| Omeprazole | Omeprazole | 44 | 3,761 | $485.55 | 15 |
| Lisinopril | Lisinopril | 40 | 3,578 | $148.45 | 12 |
| Pravastatin Sodium | Pravastatin Sodium | 37 | 3,205 | $478.74 | 11 |
| Gabapentin | Gabapentin | 36 | 3,007 | $639.40 | 15 |
| Tamsulosin Hcl | Tamsulosin Hcl | 36 | 2,520 | $334.21 | โ |
| Montelukast Sodium | Montelukast Sodium | 33 | 2,872 | $379.27 | 13 |
| Fluticasone Propionate | Fluticasone Propionate | 32 | 1,980 | $351.55 | 15 |
| Mounjaro | Tirzepatide | 30 | 1,066 | $35,172.27 | โ |
| Simvastatin | Simvastatin | 27 | 1,589 | $417.02 | โ |
| Glimepiride | Glimepiride | 26 | 1,920 | $247.69 | โ |
(top 25 shown)
Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2025-07-28NUCC Taxonomy Code: 207R00000X
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - INTERNAL MEDICINE
I20211202000074
TX
3577756279
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Medicare Group Practice Enrollments
Source: CMS Doctors and Clinicians National Downloadable File
Westwood Primary Care, Pllc
10020 Research Forest Dr, The Woodlands, TX 773546780
Phone: 2813561945
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Nurse Practitioner - Adult Health
AGPCNPBC
Nurse Practitioner - Family
Family Medicine
Doctor of Medicine (M.D.)
Family Medicine
Doctor of Medicine (M.D.)
Family Medicine
Doctor of Osteopathic Medicine (D.O.)
Family Medicine
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 10020 RESEARCH FOREST DR, THE WOODLANDS, TX 773546780 (Tel: 2813561945)
Registered at 6912 FM 1488 RD, MAGNOLIA, TX 773541527 (Tel: 2813561945)
Internal Medicine (license number reported to NPPES: TX P1334)
Registered at 777 MAIN ST STE 500, FRISCO, TX 75036 (Tel: 9726438727)
Internal Medicine (license number reported to NPPES: NJ 25MA08711100)
Registered at 9191 KYSER WAY STE 205, FRISCO, TX 750332783 (Tel: 9726438727)
Registered at 9191 KYSER WAY STE 205, FRISCO, TX 750332783 (Tel: 9726438727)
Internal Medicine (license number reported to NPPES: TX P1334)
NPI status registered as active in NPPES database
Registered at 71A TUXEDO PL, VAUXHALL, NJ 070881110 (Tel: 9088100017)
Registered at 71A TUXEDO PL, VAUXHALL, NJ 070881110 (Tel: 9088100017)
Recorded as RUBY JOHN, MD
Internal Medicine (license number reported to NPPES: NJ 25MA08711100)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Internal Medicine Providers in The Woodlands
- Dr. Amy Reif, DO
- Dr. Feroze Hussain, MD
- Dr. Ana Molina-Anstee, MD
- Dr. Lin Wang, MD
- Dr. Dean Dalili, MD
- Dr. Shilpa Vaidya, MD
Mailing Address
6912 Fm 1488 Rd
Magnolia, TX 773541527
Phone: 2813561945