Saima Mahmood, MD
Internal Medicine Physician · Castro Valley, CA
Saima Mahmood, MD is an internal medicine physician with a practice address in Castro Valley, California, and NPI 1477555811, issued on Aug 15, 2005. Check the license (California A122980, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Saima Mahmood
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- A122980 CA
11547 NV
Self-reported in NPPES; status is on the state search - Practice location
- 5618 Gold Creek Dr, Castro Valley, CA 94552
- Phone
- (256) 473-9788
- Enumerated
- Aug 15, 2005
- Record last updated
- Oct 18, 2012 (not updated in 14 years: call before relying on the address or phone)
- Medicaid ID
- 100506515 NV
- Medicare enrollment
- Enrolled (PECOS I20121128000731); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Verify Saima Mahmood in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A122980Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average internal medicine physician in 2024
56 Medicare Part D claims for 25 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Vancomycin Hcl13 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): 14.8 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.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Saima Mahmood among 17,696 internal medicine physician records in California
Saima Mahmood, MD is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 95% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1999 · median 2004 among the 11,065 with a school on file
- Record last updated2012 · 61% 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 California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
24 internal medicine physician records list a practice address in Castro Valley
They are 24 of the 999 NPPES records with a practice address in Castro Valley, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Castro Valley → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Mahendra Patel, MDCastro Valley, CA 945521700758638
- Rahel RuizCastro Valley, CA 945521821089129
- Chandran Arulanandan, MDLivermore, CA 945511689752784
- Timoteo Canio, MDLivermore, CA 945511164594974
- David Chapman, MDMartinez, CA 945531578548129
- Daniel Combitsis, DOLivermore, CA 945511942346549
- Yan Dai, MDLivermore, CA 945511740368836
- Babita Dhapola, MDLivermore, CA 945511396811873
Common questions
What is Saima Mahmood, MD's NPI number?
Saima Mahmood, MD's National Provider Identifier (NPI) is 1477555811, issued on Aug 15, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Saima Mahmood, MD located?
The NPPES record lists a practice address at 5618 Gold Creek Dr, Castro Valley, CA, 94552. Phone: (256) 473-9788. Providers update this record themselves, so call before visiting.
How can I verify Saima Mahmood, MD's license?
NPPES lists California license number A122980, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Saima Mahmood, MD prescribe under Medicare Part D?
In 2024, Saima Mahmood, MD had 56 Medicare Part D claims for 25 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Saima Mahmood, MD's MIPS final score?
The 2023 MIPS final score is 14.8 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.