Dr. Nathan A Watson , MD
Internal Medicine • Sherman, TX
1810 W Us Highway 82
Sherman, TX 750927069
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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Dr. Nathan Watson is listed in NPPES under Internal Medicine.
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NPI assigned on August 13, 2006; this date does not establish years in practice.
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Published CMS data list 3,331 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 99233 — Subsequent hospital care with moderate levelof medical decision making: 1,262 service units.
- 99232 — Subsequent hospital care with moderate levelof medical decision making: 655 service units.
- 99308 — Subsequent nursing facility care with straightforward level of medical decision making, per day: 434 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPT® 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 12 records in the table · Guide: How to read Medicare Part B data
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Published CMS data list 21,565 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers – 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 — 880 prescription fills, including refills.
- Potassium Chloride — 876 prescription fills, including refills.
- Atorvastatin Calcium — 819 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 251 records in the table · Guide: How to read Medicare Part D prescriber data
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More Medicare Part B services than 85% of clinicians listed under Internal Medicine in Sherman, TX (2024, 15 clinicians with data). Median for this group: 875. Middle half: 350 to 1,878.
More Medicare Part B services than 90% of clinicians listed under Internal Medicine in Texas (2024, 5,416 clinicians with data). Median for this group: 644. Middle half: 277 to 1,324.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 8,869 in 2020 to 3,331 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
1810 W Us Highway 82
Sherman, TX 750927069
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 2 distinct group names: Carrus Care Physicians Group Inc; New Horizons Advanced Wound Care Llc. 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
University Of Texas Southwestern Medical School At Dallas
1991
What Public CMS Data Show
Internal Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
664 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 – by Provider, 2024.
Medicare-allowed amount
About $354,434 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 $277,998 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
21,900 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
$1,002,889 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: $65.68 across 3 records.
By nature of payment
- Food and Beverage: $65.68 across 3 records.
Reporting-company totals
- Novo Nordisk Inc: $49.38 across 2 records.
- Otsuka America Pharmaceutical, Inc.: $16.30 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
35 years (graduated 1991)
CMS Doctors and Clinicians data list 1991 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?”
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. Watson 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. Watson 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 Sherman and Texas
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 85% of clinicians listed under Internal Medicine in Sherman, TX (2024, 15 clinicians with data). Median for this group: 875. Middle half: 350 to 1,878.
More Medicare Part B services than 90% of clinicians listed under Internal Medicine in Texas (2024, 5,416 clinicians with data). Median for this group: 644. Middle half: 277 to 1,324.
Medicare-allowed amount
A higher Medicare-allowed amount than 90% of clinicians listed under Internal Medicine in Sherman, TX (2024, 15 clinicians with data). Median for this group: $104,781. Middle half: $40,546 to $154,375.
A higher Medicare-allowed amount than 95% of clinicians listed under Internal Medicine in Texas (2024, 5,416 clinicians with data). Median for this group: $61,173. Middle half: $27,477 to $116,010.
Paid by Medicare
A higher Medicare payment amount than 90% of clinicians listed under Internal Medicine in Sherman, TX (2024, 15 clinicians with data). Median for this group: $77,906. Middle half: $27,731 to $118,526.
A higher Medicare payment amount than 95% of clinicians listed under Internal Medicine in Texas (2024, 5,416 clinicians with data). Median for this group: $47,441. Middle half: $20,511 to $90,088.
Medicare Part D prescriptions
More Part D prescriptions than 95% of clinicians listed under Internal Medicine in Sherman, TX (2024, 15 clinicians with data). Median for this group: 1,082. Middle half: 264 to 12,675.
More Part D prescriptions than 95% of clinicians listed under Internal Medicine in Texas (2024, 5,686 clinicians with data). Median for this group: 817. Middle half: 119 to 4,816.
Part D drug cost
A higher Part D drug cost than 85% of clinicians listed under Internal Medicine in Sherman, TX (2024, 15 clinicians with data). Median for this group: $206,976. Middle half: $46,585 to $798,362.
A higher Part D drug cost than 90% of clinicians listed under Internal Medicine in Texas (2024, 5,686 clinicians with data). Median for this group: $63,521. Middle half: $3,954 to $436,184.
19 active clinicians are listed under Internal Medicine with a practice address in Sherman, TX (9,234 in Texas).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Sherman
10.5% of these 19 clinicians have the CMS telehealth indicator.
63.2% of these 19 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 decreased 62% from 8,869 in 2020 to 3,331 in 2024.
- 2020: 8,869
- 2021: 8,476
- 2022: 6,875
- 2023: 4,066
- 2024: 3,331
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Medicare-allowed amount
Medicare-allowed amount decreased 59% from $865,658 in 2020 to $354,434 in 2024.
- 2020: $865,658
- 2021: $804,638
- 2022: $649,207
- 2023: $440,835
- 2024: $354,434
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Paid by Medicare
Paid by Medicare decreased 60% from $687,410 in 2020 to $277,998 in 2024.
- 2020: $687,410
- 2021: $639,629
- 2022: $515,265
- 2023: $347,092
- 2024: $277,998
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 51% from 14,293 in 2020 to 21,565 in 2024.
- 2020: 14,293
- 2021: 17,153
- 2022: 17,290
- 2023: 19,632
- 2024: 21,565
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30-day fills
30-day fills increased 52% from 14,436 in 2020 to 21,900 in 2024.
- 2020: 14,436
- 2021: 17,295
- 2022: 17,489
- 2023: 19,971
- 2024: 21,900
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Part D drug cost
Part D drug cost increased 38% from $724,386 in 2020 to $1,002,889 in 2024.
- 2020: $724,386
- 2021: $925,483
- 2022: $846,451
- 2023: $929,973
- 2024: $1,002,889
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $23.08 in 2019 to $65.68 in 2025.
- 2019: $23.08
- 2024: $134.73
- 2025: $65.68
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
Program year 2025 (payments made January 1 – December 31, 2025): fewer than 11 records totaling $65.68.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Novo Nordisk Inc |
Food and Beverage
In-kind items and services
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Ozempic | General | $33.17 |
| Otsuka America Pharmaceutical, Inc. |
Food and Beverage
In-kind items and services
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REXULTI | General | $16.30 |
| Novo Nordisk Inc |
Food and Beverage
In-kind items and services
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Ozempic | General | $16.21 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Performed Procedures & Service Volume
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 |
|---|---|---|---|---|
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99233
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes
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1,262 | 253 | $165.00 | $112.78 |
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99232
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes
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655 | 265 | $115.00 | $74.96 |
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99308
Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more
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434 | 185 | $112.00 | $70.86 |
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99309
Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes
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396 | 181 | $147.00 | $102.61 |
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99223
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes
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206 | 192 | $318.00 | $164.69 |
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99306
Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more
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152 | 131 | $266.00 | $173.59 |
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99305
Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes
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68 | 60 | $208.00 | $126.67 |
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99291
Critical care, first 30-74 minutes
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51 | 43 | $453.00 | $202.68 |
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99239
Hospital discharge day management, more than 30 minutes
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44 | 44 | $170.00 | $108.62 |
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99310
Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes
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32 | 28 | $216.00 | $146.58 |
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99283
Emergency department visit with low level of medical decision making
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17 | 16 | $115.00 | $67.93 |
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99222
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes
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14 | 14 | $216.00 | $123.83 |
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 | 880 | 17,301 | $9,570.54 | 111 |
| Potassium Chloride | Potassium Chloride | 876 | 21,040 | $14,092.11 | 145 |
| Atorvastatin Calcium | Atorvastatin Calcium | 819 | 20,805 | $10,877.47 | 146 |
| Furosemide | Furosemide | 729 | 13,742 | $4,831.00 | 110 |
| Eliquis | Apixaban | 578 | 8,274 | $172,844.46 | 71 |
| Gabapentin | Gabapentin | 574 | 14,713 | $10,722.20 | 95 |
| Amlodipine Besylate | Amlodipine Besylate | 468 | 12,961 | $4,220.37 | 89 |
| Trazodone Hcl | Trazodone Hcl | 463 | 12,859 | $5,811.82 | 89 |
| Pantoprazole Sodium | Pantoprazole Sodium | 462 | 11,426 | $6,206.81 | 99 |
| Metoprolol Tartrate | Metoprolol Tartrate | 416 | 11,220 | $3,855.31 | 90 |
| Divalproex Sodium | Divalproex Sodium | 401 | 10,501 | $18,559.44 | 60 |
| Memantine Hcl | Memantine Hcl | 391 | 10,004 | $15,564.32 | 57 |
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 389 | 8,806 | $16,109.65 | 88 |
| Clopidogrel | Clopidogrel Bisulfate | 374 | 9,493 | $5,117.91 | 63 |
| Sertraline Hcl | Sertraline Hcl | 334 | 8,092 | $4,433.87 | 56 |
| Losartan Potassium | Losartan Potassium | 301 | 8,223 | $3,767.36 | 59 |
| Donepezil Hcl | Donepezil Hcl | 295 | 7,638 | $4,690.96 | 49 |
| Metoprolol Succinate | Metoprolol Succinate | 293 | 7,036 | $4,521.37 | 56 |
| Torsemide | Torsemide | 290 | 7,140 | $4,592.34 | 53 |
| Mirtazapine | Mirtazapine | 281 | 6,915 | $5,712.45 | 57 |
| Tramadol Hcl | Tramadol Hcl | 274 | 5,669 | $5,540.52 | 56 |
| Lisinopril | Lisinopril | 255 | 6,276 | $2,233.26 | 48 |
| Tamsulosin Hcl | Tamsulosin Hcl | 251 | 6,048 | $3,670.72 | 50 |
| Buspirone Hcl | Buspirone Hcl | 248 | 6,950 | $4,298.90 | 43 |
| Citalopram Hbr | Citalopram Hydrobromide | 240 | 5,589 | $2,214.95 | 38 |
(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: 2021-10-27NUCC 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.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - INTERNAL MEDICINE
I20051104000180
TX
2769385582
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
New Horizons Advanced Wound Care Llc
500 E Peyton St, Sherman, TX 750900200
Phone: 9038216757
Carrus Care Physicians Group Inc
1810 W Us Hwy 82, Sherman, TX 750927069
Phone: 9038702600
New Horizons Advanced Wound Care Llc
196 Eagle Loop Rd, Durant, OK 747018126
Phone: 9036241589
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 - Family
Family Nurse Practitioner
Internal Medicine - Infectious Disease
Doctor of Medicine (M.D.)
Physician Assistant
Physician Assistant
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 1810 W US HIGHWAY 82, SHERMAN, TX 750927069 (Tel: 9038219688)
NPI status registered as active in NPPES database
Registered at 600 N HIGHLAND AVE, STE 104, SHERMAN, TX 750925601 (Tel: 9038219688)
Registered at PO BOX 1126, SHERMAN, TX 750911126 (Tel: 9729919950)
Recorded as NATHAN WATSON, MD
Internal Medicine (license number reported to NPPES: TX J2997)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Internal Medicine Providers in Sherman
- Dr. Sumbul Islam, MD
- Dr. Bradley Rue, MD
- Dr. Ahmad Maher, MD
- Dr. Ronak Patel, MD
- Dr. Junior Taylor, MD
- Dr. Ashok Malhi, MD
Mailing Address
Po Box 1126
Sherman, TX 750911126
Phone: 9729919950