NPPES file of Aug 9, 2026

William Russell Giles, MD

Internal Medicine Physician · Gun Barrel City, TX

William Russell Giles, MD is an internal medicine physician with a practice address in Gun Barrel City, Texas, and NPI 1386662419, issued on Jul 17, 2006. Check the license (Texas M0730, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1386662419
Name
William Russell Giles
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
M0730 TX
Self-reported in NPPES; status is on the state search
Practice location
126 W Main St, Gun Barrel City, TX 75156
Phone
(903) 713-1582
Enumerated
Jul 17, 2006
Record last updated
Jan 8, 2009 (not updated in 17 years: call before relying on the address or phone)
Fax
(903) 713-1579
Medicaid ID
174192802 TX
Medicare enrollment
Enrolled (PECOS I20050421001170); accepts Medicare assignment
Medical or professional school
University Of Texas Medical School At Houston, 2001
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 126 W Main St

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

  1. Charles Cooper, NPNurse Practitioner1124728779
  2. Asiya Mahmood, M.DInternal Medicine Physician1740476639

Verify William Russell Giles in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license M0730
    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

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

13,643 Medicare Part D claims for 868 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 50 claims were for opioids.

  1. William Giles13,643
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium1,165 claims
  2. Levothyroxine Sodium546 claims
  3. Losartan Potassium515 claims
  4. Metformin Hcl409 claims
  5. Lisinopril379 claims
  6. Pantoprazole Sodium368 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.

The MIPS final score for 2023 (Medicare payment program): 97.6 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score86.5
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $1,155.02

57 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. 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. William Giles$1,155.02
  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. Etmc Physician Group, Inc.Gun Barrel City, TX

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

William Russell Giles among 9,175 internal medicine physician records in Texas

William Russell Giles, MD 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
  • Graduated2001 · median 2004 among the 6,088 with a school on file
  • Record last updated2009 · 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).

2 internal medicine physician records list a practice address in Gun Barrel City

They are 2 of the 85 NPPES records with a practice address in Gun Barrel City, and 9,175 internal medicine physician records in Texas.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Asiya Mahmood, M.DGun Barrel City, TX 751561740476639
  2. Francis Fischer, DORed Oak, TX 751541144804279
  3. Joseph Capps, M.D.Seagoville, TX 751591043361421
  4. Martin Hurst, M.D.Terrell, TX 751601548281231
  5. Kranti Purimetla, M.D.Terrell, TX 751601295882157
  6. Frank EbaiMesquite, TX 751501902468796
  7. Jason George, MDMesquite, TX 751501720237365
  8. Katherine GonzalezMesquite, TX 751501164126025

Common questions

What is William Russell Giles, MD's NPI number?

William Russell Giles, MD's National Provider Identifier (NPI) is 1386662419, issued on Jul 17, 2006. An NPI identifies a provider in billing; it is not a license.

Where is William Russell Giles, MD located?

The NPPES record lists a practice address at 126 W Main St, Gun Barrel City, TX, 75156. Phone: (903) 713-1582. Providers update this record themselves, so call before visiting.

How can I verify William Russell Giles, MD's license?

NPPES lists Texas license number M0730, 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 William Russell Giles, MD prescribe under Medicare Part D?

In 2024, William Russell Giles, MD had 13,643 Medicare Part D claims for 868 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is William Russell Giles, MD's MIPS final score?

The 2023 MIPS final score is 97.6 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.