NPPES file of Aug 9, 2026

Shamoon Ahmed, M.D.

Internal Medicine Physician · Houston, TX

Shamoon Ahmed, M.D. is an internal medicine physician with a practice address in Houston, Texas, and NPI 1831138072, issued on Jun 5, 2006. Check the license (Texas N0597, 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
1831138072
Name
Shamoon Ahmed
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
N0597 TX
Self-reported in NPPES; status is on the state search
Practice location
10019 Main St, Houston, TX 77025
Phone
(713) 666-7000
Enumerated
Jun 5, 2006
Record last updated
Sep 16, 2015 (not updated in 11 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20081124000536); accepts Medicare assignment
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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Verify Shamoon Ahmed in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license N0597
    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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2.4 times the Medicare Part D claims of the average internal medicine physician in 2024

7,621 Medicare Part D claims for 478 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. 810 claims were for opioids.

  1. Shamoon Ahmed7,621
  2. Specialty average3,176

Most prescribed

  1. Hydrocodone-Acetaminophen678 claims
  2. Atorvastatin Calcium406 claims
  3. Amlodipine Besylate343 claims
  4. Gabapentin258 claims
  5. Losartan Potassium221 claims
  6. Metformin Hcl189 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: $165.11

2 payments; by number, the most common kind was food and beverage; the largest payer was Abbott Laboratories. 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. Shamoon Ahmed$165.11
  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. Tmc PhysiciansHouston, TX

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

Shamoon Ahmed among 9,175 internal medicine physician records in Texas

Shamoon Ahmed, 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
  • Graduated1991 · median 2004 among the 6,088 with a school on file
  • Record last updated2015 · 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).

1,488 internal medicine physician records list a practice address in Houston

They are 1,488 of the 61,221 NPPES records with a practice address in Houston, and 9,175 internal medicine physician records in Texas.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Donald Aga, MDHouston, TX 770251093749103
  2. Frank Ajatta, M.D.Houston, TX 770251851360705
  3. Rajkumar Alagugurusamy, MDHouston, TX 770251285652925
  4. Zhihao Dai, M.D.Houston, TX 770251134175565
  5. Fawzia Javed, MDHouston, TX 770251831120518
  6. Tony Lin, MDHouston, TX 770251689760969
  7. Trela Parker, MDHouston, TX 770251598851875
  8. Varsha Patel, MDHouston, TX 770251184651929

Common questions

What is Shamoon Ahmed, M.D.'s NPI number?

Shamoon Ahmed, M.D.'s National Provider Identifier (NPI) is 1831138072, issued on Jun 5, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Shamoon Ahmed, M.D. located?

The NPPES record lists a practice address at 10019 Main St, Houston, TX, 77025. Phone: (713) 666-7000. Providers update this record themselves, so call before visiting.

How can I verify Shamoon Ahmed, M.D.'s license?

NPPES lists Texas license number N0597, 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 Shamoon Ahmed, M.D. prescribe under Medicare Part D?

In 2024, Shamoon Ahmed, M.D. had 7,621 Medicare Part D claims for 478 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.