NPPES file of Aug 9, 2026

W Mackey Watkins, M.D.

Internal Medicine Physician · Denison, TX

W Mackey Watkins, M.D. is an internal medicine physician with a practice address in Denison, Texas, and NPI 1679527527, issued on May 22, 2006. Check the license (Texas D9710, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1679527527
Name
W Mackey Watkins
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
D9710 TX
Self-reported in NPPES; status is on the state search
Practice location
5012 S US Highway 75, Denison, TX 75020
Phone
(903) 416-6010
Enumerated
May 22, 2006
Record last updated
Dec 4, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(903) 416-6183
Medicaid IDs
100153440A OK
098998003 TX
Medicare enrollment
Enrolled (PECOS I20100909001119); accepts Medicare assignment
Medical or professional school
University Of Texas Medical Branch At Galveston, 1972
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 5012 S US Highway 75

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Bill Balch, MDInternal Medicine Physician1548219959
  2. Steven Bentley, PA-CPhysician Assistant1760557946
  3. Timothy Brumit, MDPediatrics Physician1043269202
  4. Gregory Carlson, MDFamily Medicine Physician1386694438
  5. Robert Church, MDFamily Medicine Physician1306048673
  6. Charlene Crumby, RN MSN FNPWomen's Health Nurse Practitioner1790999480

Verify W Mackey Watkins in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license D9710
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Texas license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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4.0 times the Medicare Part D claims of the average internal medicine physician in 2024

12,785 Medicare Part D claims for 599 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 399 claims were for opioids.

  1. W Watkins12,785
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium544 claims
  2. Levothyroxine Sodium441 claims
  3. Losartan Potassium438 claims
  4. Metoprolol Succinate429 claims
  5. Amlodipine Besylate393 claims
  6. Pantoprazole Sodium283 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $53.16

3 payments; by number, the most common kind was food and beverage; the largest payer was Otsuka America Pharmaceutical, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. W Watkins$53.16
  2. Specialty average$1,303.06

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. TexomacareDenison, TX

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

W Mackey Watkins among 9,175 internal medicine physician records in Texas

W Mackey Watkins, M.D. is one of 9,175 internal medicine physician records with a practice address in Texas. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.

  • NPI issued2006 · 9% of these records are older, 59% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated1972 · median 2004 among the 6,088 with a school on file
  • Record last updated2018 · 49% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

20 internal medicine physician records list a practice address in Denison

They are 20 of the 554 NPPES records with a practice address in Denison, and 9,175 internal medicine physician records in Texas.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Jenson Abraham, M.D.Denison, TX 750201205074135
  2. Bill Balch, MDDenison, TX 750201548219959
  3. Angelica Balingit, MDDenison, TX 750201861436040
  4. Charles Derbes, MDDenison, TX 750201427003466
  5. Nasheel Joules, M.D.Denison, TX 750201063670628
  6. Birendra Lal, M.D.Denison, TX 750201760437719
  7. Marilyn Landrum, MDDenison, TX 750201285683987
  8. Vanessa Ohnes-Verduguez, M.D.Denison, TX 750201396988770

Common questions

What is W Mackey Watkins, M.D.'s NPI number?

W Mackey Watkins, M.D.'s National Provider Identifier (NPI) is 1679527527, issued on May 22, 2006. An NPI identifies a provider in billing; it is not a license.

Where is W Mackey Watkins, M.D. located?

The NPPES record lists a practice address at 5012 S US Highway 75, Denison, TX, 75020. Phone: (903) 416-6010. Providers update this record themselves, so call before visiting.

How can I verify W Mackey Watkins, M.D.'s license?

NPPES lists Texas license number D9710, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does W Mackey Watkins, M.D. prescribe under Medicare Part D?

In 2024, W Mackey Watkins, M.D. had 12,785 Medicare Part D claims for 599 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.