NPPES file of Aug 9, 2026

Ahmed Hassan, D.O.

Internal Medicine Physician · Sunnyvale, TX

Ahmed Hassan, D.O. is an internal medicine physician with a practice address in Sunnyvale, Texas, and NPI 1508249285, issued on Jun 30, 2015. Check the license (Texas R5125, 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
1508249285
Name
Ahmed Hassan
Credential
D.O.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
R5125 TX
Self-reported in NPPES; status is on the state search
Practice location
231 S Collins RD, Sunnyvale, TX 75182
Phone
(972) 892-3000
Enumerated
Jun 30, 2015
Record last updated
Feb 27, 2024
Medicare enrollment
Enrolled (PECOS I20180611002451); accepts Medicare assignment
Medical or professional school
At Still University Of Health Sciences, College Of Osteo Med, Kirksville, 2015
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 231 S Collins RD

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

  1. Agha Abbas, MDInternal Medicine Physician1326001843
  2. Flemi AlexPhysical Therapist1386484665
  3. Sagar Bedi, MDEmergency Medicine Physician1366556441
  4. Suresh Belame, M.D.Internal Medicine Physician1356667612
  5. David Chang, DOEmergency Medicine Physician1538797691
  6. Abby Grider, M.D.Family Medicine Physician1871848242

Verify Ahmed Hassan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license R5125
    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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59% fewer Medicare Part D claims than the average internal medicine physician in 2024

1,314 Medicare Part D claims for 71 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 69 claims were for opioids.

  1. Ahmed Hassan1,314
  2. Specialty average3,176

Most prescribed

  1. Gabapentin54 claims
  2. Sertraline Hcl44 claims
  3. Potassium Chloride40 claims
  4. Tamsulosin Hcl40 claims
  5. Atorvastatin Calcium36 claims
  6. Autoshield Duo Pen Needle31 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.

Bills Medicare through 2 group practices

  1. Meridian Health Partners PLLCAllen, TX
  2. Poppy Drive Inpatient Services PLLCSunnyvale, TX

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

8 internal medicine physician records list a practice address in Sunnyvale

They are 8 of the 213 NPPES records with a practice address in Sunnyvale, and 9,175 internal medicine physician records in Texas.

Other internal medicine physician records in Texas

  1. Muhammad A. Sattar, MDDallas, TX1760465553
  2. Gayatri Aaluri, MDGalveston, TX1821928508
  3. Anunaya AashishDenton, TX1134246374
  4. Queenie Ann Abad, M.D.San Antonio, TX1174979785
  5. Fuad Abaleka, M.DLubbock, TX1861925596
  6. Carol Abalihi, M.D.El Paso, TX1326136243
  7. Oliverio Abarca Guzman, MDHarlingen, TX1346972940
  8. Obinna Abaribe, M.DMansfield, TX1457704355
  9. Enyinnaya Abarikwu, MDTyler, TX1174788178
  10. Sulaiman Abawi, D.O.Frisco, TX1780845255

Common questions

What is Ahmed Hassan, D.O.'s NPI number?

Ahmed Hassan, D.O.'s National Provider Identifier (NPI) is 1508249285, issued on Jun 30, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Ahmed Hassan, D.O. located?

The NPPES record lists a practice address at 231 S Collins RD, Sunnyvale, TX, 75182. Phone: (972) 892-3000. Providers update this record themselves, so call before visiting.

How can I verify Ahmed Hassan, D.O.'s license?

NPPES lists Texas license number R5125, 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 Ahmed Hassan, D.O. prescribe under Medicare Part D?

In 2024, Ahmed Hassan, D.O. had 1,314 Medicare Part D claims for 71 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.