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Dr. Kumar Sathianathan , MD

Internal Medicine • Georgetown, TX

Active NPI 1831144161 Individual Practitioner Male Practitioner Accepts Medicare assignment
Practice location in NPPES

3613 Williams Dr, Ste 404
Georgetown, TX 786281377

Call 5129304275 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

3613 Williams Dr
Ste 404

Georgetown, TX 786281377

Telephone 5129304275
Fax 5129304093
Before You Book

Paying without insurance? Prepare a cost-estimate request

Ask about interpreters and office accessibility

Organization at the Same NPPES Address or Phone
Total Sleep Diagnostics, Inc. Facility NPI 1992962724

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File

Graduation Year

1990

What Public CMS Data Show

These CMS figures cover limited populations and published records; they are not quality ratings or medical advice.

Internal Medicine: NPPES taxonomy is a reported classification, not proof of board certification.

Medicare patients

644 people with Original Medicare in 2024

Different Original Medicare patients in 2024; counts below 11 are hidden; this does not show availability or quality.

It gives a sense of how many people with Medicare this clinician treated that year.

Source: CMS, Medicare Physician & Other Practitioners – by Provider, 2024.

Medicare-allowed amount

About $442,660 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 – by Provider and Service, 2024.

Paid by Medicare

About $343,547 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 – by Provider and Service, 2024.

30-day fills

36,822 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

$1,110,052 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 – by Provider and Drug, 2024.

Open Payments general payments, program year 2025

All general payments: $252.80 across 13 records.

By nature of payment

  • Food and Beverage: $252.80 across 13 records.

Reporting-company totals (3 largest of 5)

  • Amgen Inc.: $81.49 across 4 records.
  • Eli Lilly and Company: $58.75 across 3 records.
  • Novo Nordisk Inc: $46.93 across 3 records.

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.

See the full table

Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).

Guide: How to read an Open Payments record

Years since graduation

36 years (graduated 1990)

CMS Doctors and Clinicians data list 1990 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

2006

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, “Does your provider accept Medicare as full payment?”

Guide: What Medicare assignment means

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.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Dr. Sathianathan 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.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Dr. Sathianathan 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.

Guide: What ordering and referring status means

Compared with the same specialty in Georgetown and Texas

Billing and prescribing volume is not a quality rating.

Medicare Part B services

More Medicare Part B services than 95% of clinicians listed under Internal Medicine in Georgetown, TX (2024, 23 clinicians with data). Median for this group: 1,273. Middle half: 621 to 1,775.

More Medicare Part B services than 95% 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

A higher Medicare-allowed amount than 95% of clinicians listed under Internal Medicine in Georgetown, TX (2024, 23 clinicians with data). Median for this group: $105,775. Middle half: $59,199 to $158,808.

A higher Medicare-allowed amount than 95% of 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 higher Medicare payment amount than 95% of clinicians listed under Internal Medicine in Georgetown, TX (2024, 23 clinicians with data). Median for this group: $79,676. Middle half: $46,560 to $122,737.

A higher Medicare payment amount than 95% of 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

More Part D prescriptions than 95% of clinicians listed under Internal Medicine in Georgetown, TX (2024, 26 clinicians with data). Median for this group: 4,221. Middle half: 1,282 to 7,400.

More Part D prescriptions than 95% of 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

A higher Part D drug cost than 95% of clinicians listed under Internal Medicine in Georgetown, TX (2024, 26 clinicians with data). Median for this group: $334,752. Middle half: $58,035 to $587,748.

A higher Part D drug cost than 90% 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.

37 active clinicians are listed under Internal Medicine with a practice address in Georgetown, TX (9,191 in Texas).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Georgetown

43.2% of these 37 clinicians have the CMS telehealth indicator.

62.2% of these 37 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.

  • Medicare Part B services

    Medicare Part B services increased 52% from 4,405 in 2020 to 6,685 in 2024.

    • 2020: 4,405
    • 2021: 4,923
    • 2022: 5,112
    • 2023: 5,595
    • 2024: 6,685

  • Medicare-allowed amount

    Medicare-allowed amount increased 20% from $369,196 in 2020 to $442,660 in 2024.

    • 2020: $369,196
    • 2021: $428,310
    • 2022: $390,177
    • 2023: $390,640
    • 2024: $442,660

  • Paid by Medicare

    Paid by Medicare increased 27% from $271,450 in 2020 to $343,547 in 2024.

    • 2020: $271,450
    • 2021: $326,617
    • 2022: $303,300
    • 2023: $307,820
    • 2024: $343,547

  • Medicare Part D prescriptions

    Medicare Part D prescriptions increased 26% from 12,219 in 2020 to 15,448 in 2024.

    • 2020: 12,219
    • 2021: 12,152
    • 2022: 12,495
    • 2023: 14,071
    • 2024: 15,448

  • 30-day fills

    30-day fills increased 29% from 28,551 in 2020 to 36,822 in 2024.

    • 2020: 28,551
    • 2021: 29,365
    • 2022: 29,885
    • 2023: 32,954
    • 2024: 36,822

  • Part D drug cost

    Part D drug cost increased 64% from $676,494 in 2020 to $1,110,052 in 2024.

    • 2020: $676,494
    • 2021: $715,975
    • 2022: $728,263
    • 2023: $920,517
    • 2024: $1,110,052

  • Industry payments (Open Payments)

    Industry payments (Open Payments) went from $66.11 in 2020 to $252.80 in 2025.

    • 2020: $66.11
    • 2021: $52.45
    • 2023: $38.46
    • 2024: $86.82
    • 2025: $252.80

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 · 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

Open Payments · Program Year 2025
Disclosure Year:

Program year 2025 (payments made January 1 – December 31, 2025): 13 records totaling $252.80.

Manufacturer Payment Nature Product Type Amount ($)
Eli Lilly and Company
Food and Beverage
In-kind items and services
 MOUNJARO General $24.96
Amgen Inc.
Food and Beverage
In-kind items and services
 OTEZLA General $23.17
Exact Sciences Corporation
Food and Beverage
In-kind items and services
 Cologuard Collection Kit General $22.64
Pfizer Inc.
Food and Beverage
In-kind items and services
 NURTEC ODT General $22.11
Amgen Inc.
Food and Beverage
In-kind items and services
 OTEZLA General $20.97
Exact Sciences Corporation
Food and Beverage
In-kind items and services
 Cologuard Collection Kit General $20.88
Amgen Inc.
Food and Beverage
In-kind items and services
 REPATHA General $20.57
Eli Lilly and Company
Food and Beverage
In-kind items and services
 MOUNJARO General $20.14
Novo Nordisk Inc
Food and Beverage
In-kind items and services
 Ozempic General $17.64
Amgen Inc.
Food and Beverage
In-kind items and services
 OTEZLA General $16.78
Novo Nordisk Inc
Food and Beverage
In-kind items and services
 — General $15.61
Novo Nordisk Inc
Food and Beverage
In-kind items and services
 Ozempic General $13.68
Eli Lilly and Company
Food and Beverage
In-kind items and services
 MOUNJARO General $13.65

Source: CMS Open Payments, program year 2025, released June 30, 2026.

A reported payment does not necessarily indicate wrongdoing; clinicians can dispute a record with CMS.

Performed Procedures & Service Volume

Services billed to Original Medicare Part B in 2024.

CMS Part B · Data Year 2024
Reporting Year:

CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016–2023 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 – by Provider and Service data, 2017–2024; 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
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
1,999 577 $199.77 $122.44
J1100 Injection, dexamethasone sodium phosphate, 1 mg
623 104 $10.00 $0.11
G0444 Annual depression screening, 5 to 15 minutes
394 394 $35.00 $17.73
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit
388 388 $176.35 $123.54
96372 Injection of drug or substance under skin or into muscle
338 119 $38.00 $13.57
J1885 Injection, ketorolac tromethamine, per 15 mg
326 53 $5.00 $0.63
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report
282 267 $85.00 $13.61
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
279 199 $25.00 $15.75
96127 Assessment of emotional or behavioral problems
254 253 $10.00 $4.31
G0008 Administration of influenza virus vaccine
243 240 $45.00 $31.03
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more
230 171 $249.67 $172.53
90653 Influenza vaccine, inactivated
228 228 $138.57 $81.82
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg
164 104 $15.00 $0.96
90480 Admn sarscov2 vacc 1 dose
156 146 $76.28 $41.37
91322 Sarscov2 vac 50 mcg/0.5ml im
156 146 $241.28 $155.55
J0696 Injection, ceftriaxone sodium, per 250 mg
133 29 $25.00 $0.46
87804 Detection test by immunoassay with direct visual observation for influenza virus
118 71 $35.89 $16.22
87811 Detection test by immunoassay with direct visual observation for severe acute respiratory syndrome coronavirus 2 (covid-19)
62 55 $158.06 $40.55
G0179 Physician or allowed practitioner re-certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians a
59 23 $100.00 $39.75
87426 Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus
49 48 $150.00 $34.62
99496 Transitional care management services for problem of high complexity
44 40 $410.00 $266.55
G0180 Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and
36 34 $125.00 $50.88
69210 Removal of impacted ear wax
27 23 $105.00 $45.56
96160 Administration and interpretation of patient-focused health risk assessment
22 22 $4.00 $2.78
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
21 21 $175.00 $159.29

(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.

CMS Part D · Data Year 2024
Prescription Year:
Brand Name Generic Name Prescriptions Day Supply Total Cost Patients
Atorvastatin Calcium Atorvastatin Calcium 1,349 114,647 $11,008.14 392
Levothyroxine Sodium Levothyroxine Sodium 1,116 94,022 $12,209.03 301
Lisinopril Lisinopril 533 40,548 $3,629.66 129
Amlodipine Besylate Amlodipine Besylate 493 43,090 $2,607.30 157
Losartan Potassium Losartan Potassium 488 41,819 $4,558.55 138
Omeprazole Omeprazole 472 36,412 $5,542.89 126
Metformin Hcl Metformin Hcl 444 36,346 $2,634.34 117
Rosuvastatin Calcium Rosuvastatin Calcium 424 36,953 $7,266.55 134
Ezetimibe Ezetimibe 405 36,245 $9,097.14 139
Hydrochlorothiazide Hydrochlorothiazide 399 32,352 $1,174.83 112
Zolpidem Tartrate Zolpidem Tartrate 378 11,820 $1,620.22 60
Alprazolam Alprazolam 239 6,361 $699.32 50
Metoprolol Succinate Metoprolol Succinate 239 18,699 $2,865.18 59
Methylprednisolone Methylprednisolone 236 1,409 $1,381.68 187
Gabapentin Gabapentin 229 18,897 $3,838.44 78
Azithromycin Azithromycin 221 1,104 $759.89 189
Simvastatin Simvastatin 216 15,841 $1,183.88 48
Pantoprazole Sodium Pantoprazole Sodium 200 15,650 $2,239.11 55
Furosemide Furosemide 194 16,066 $866.25 64
Montelukast Sodium Montelukast Sodium 189 13,401 $2,432.15 46
Tamsulosin Hcl Tamsulosin Hcl 175 14,801 $3,139.89 54
Pravastatin Sodium Pravastatin Sodium 168 14,531 $1,871.88 46
Glipizide Er Glipizide 166 13,621 $2,932.56 46
Escitalopram Oxalate Escitalopram Oxalate 165 13,255 $1,942.95 51
Ozempic Semaglutide 162 6,216 $185,604.21 32

(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

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

License # reported to NPPES TX K8472

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.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Texas Medical Board.
Look Up on State Board Site

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - INTERNAL MEDICINE

Medicare Enrollment ID

I20100903000328

Enrollment State Jurisdiction

TX

PECOS Control ID

4587572938

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

1 listed
Dr. Anthony Shallin , MD

Internal Medicine

NPI 1891734968

Doctor of Medicine (M.D.)

Career & Practice History

NPI enumerated May 24, 2006.

No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to August 2026.

No reviews have been published yet. Leave a review.

NPI Administrative Meta

NPI Number: 1831144161
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: May 24, 2006
Last Update: July 09, 2007
Sole Proprietor: No
Update or Correct Profile

Other Internal Medicine Providers in Georgetown

All Internal Medicine Providers in Georgetown

Mailing Address

3613 Williams Dr, Ste 404

Georgetown, TX 786281377

Phone: 5129304275

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.