Mohammed Nazar Ghassan Mahmoud, DO
Internal Medicine Physician · Austin, TX
Mohammed Nazar Ghassan Mahmoud, DO is an internal medicine physician with a practice address in Austin, Texas, and NPI 1518662964, issued on Apr 4, 2023. Check the license (Texas BP10083902, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Mohammed Nazar Ghassan Mahmoud
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- BP10083902 TX
Self-reported in NPPES; status is on the state search - Practice location
- 1500 Red River St, Austin, TX 78701
- Phone
- (512) 495-5555
- Enumerated
- Apr 4, 2023
- Record last updated
- Mar 23, 2026
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 9,175 in Texas → Look up another NPI →
Also registered at 1500 Red River St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mohammed Nazar Ghassan Mahmoud in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license BP10083902Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average internal medicine physician in 2024
242 Medicare Part D claims for 62 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium27 claims
- Amlodipine Besylate19 claims
- Albuterol Sulfate Hfa11 claims
- Metformin Hcl11 claims
- Pantoprazole Sodium11 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.
Mohammed Nazar Ghassan Mahmoud among 9,175 internal medicine physician records in Texas
Mohammed Nazar Ghassan Mahmoud, DO 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 2023, is newer than 95% of them.
- NPI issued2023 · 95% of these records are older, 3% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileNo · 66% of these records are
- Record last updated2026 · 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).
606 internal medicine physician records list a practice address in Austin
They are 606 of the 26,585 NPPES records with a practice address in Austin, and 9,175 internal medicine physician records in Texas.
All 9,175 in Texas → Every provider in Austin → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Swati Avashia, M.D.Austin, TX 787011740291319
- Teresa Coats, M.D.Austin, TX 787011992889844
- Jadranko Corak, M.D.Austin, TX 787011801960364
- Arshad Ghauri, M.D.Austin, TX 787011699849125
- Mark Hernandez, M.D.Austin, TX 787011093783490
- Celina Mankey, MDAustin, TX 787011427048149
- Tahir Mian, M.D.Austin, TX 787011679517015
- Lysbeth Miller, M.D.Austin, TX 787011285708305
Common questions
What is Mohammed Nazar Ghassan Mahmoud, DO's NPI number?
Mohammed Nazar Ghassan Mahmoud, DO's National Provider Identifier (NPI) is 1518662964, issued on Apr 4, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Mohammed Nazar Ghassan Mahmoud, DO located?
The NPPES record lists a practice address at 1500 Red River St, Austin, TX, 78701. Phone: (512) 495-5555. Providers update this record themselves, so call before visiting.
How can I verify Mohammed Nazar Ghassan Mahmoud, DO's license?
NPPES lists Texas license number BP10083902, 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 Mohammed Nazar Ghassan Mahmoud, DO prescribe under Medicare Part D?
In 2024, Mohammed Nazar Ghassan Mahmoud, DO had 242 Medicare Part D claims for 62 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.