Maher Tama, M.D.
Gastroenterology Physician · Walnut Creek, CA
Maher Tama, M.D. is a gastroenterology physician with a practice address in Walnut Creek, California, and NPI 1326393737, issued on Jul 23, 2012. Check the license (California A161762, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Maher Tama
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- A161762 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1479 Ygnacio Valley RD Ste 150, Walnut Creek, CA 94598
- Phone
- (925) 296-7340
- Enumerated
- Jul 23, 2012
- Record last updated
- Jan 20, 2026
- Medicare enrollment
- Enrolled (PECOS I20190731001397); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 2,140 in California → Look up another NPI →
Also registered at 1479 Ygnacio Valley RD Ste 150
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Stephanie Chan, FNP-BCNurse Practitioner1477280030
- Varujan Keledjian, M.D.Gastroenterology Physician1508831678
- Christine Shieh, MDGastroenterology Physician1013414465
- Erin Wolf, MDGastroenterology Physician1245733062
- Carmen Yung, FNP-BCNurse Practitioner1003475450
Verify Maher Tama in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A161762Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
41% fewer Medicare Part D claims than the average gastroenterology physician in 2024
482 Medicare Part D claims for 184 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.
Most prescribed
- Pantoprazole Sodium113 claims
- Omeprazole105 claims
- Ondansetron Odt33 claims
- Famotidine32 claims
- Gavilyte-G23 claims
- Sucralfate14 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 practice group's MIPS final score for 2023 (Medicare payment program): 76.7 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $34.57
2 payments; by number, the most common kind was food and beverage; the largest payer was Regeneron Healthcare Solutions, Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
3 hospitals and group practices
- Loyola University Medical CenterMaywood, IL · Acute Care Hospitals2 of 5 stars
- Faculty Physicians And Surgeons OF LlusmLoma Linda, CA
- John Muir Physician NetworkWalnut Creek, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Maher Tama among 2,140 gastroenterology physician records in California
Maher Tama, M.D. is one of 2,140 gastroenterology physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 77% of them.
- NPI issued2012 · 77% of these records are older, 20% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2011 · median 2002 among the 1,538 with a school on file
- Record last updated2026 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in California
There are 2,140 gastroenterology physician records in California.
All 2,140 in California → Every provider in Walnut Creek → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Mervyn Becker, MDWalnut Creek, CA 945981841329430
- Steve Cheng, MDWalnut Creek, CA 945981245318328
- Shireen Ghorbani, M.D.Walnut Creek, CA 945981083845598
- Varujan Keledjian, M.D.Walnut Creek, CA 945981508831678
- Henry Kung, M.D.Walnut Creek, CA 945981518941673
- Will Lane, M.D.Walnut Creek, CA 945981548244684
- David Lin, M.D.Walnut Creek, CA 945981982664041
- Cynthia Mullen, M.D.Walnut Creek, CA 945981013123140
Common questions
What is Maher Tama, M.D.'s NPI number?
Maher Tama, M.D.'s National Provider Identifier (NPI) is 1326393737, issued on Jul 23, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Maher Tama, M.D. located?
The NPPES record lists a practice address at 1479 Ygnacio Valley RD Ste 150, Walnut Creek, CA, 94598. Phone: (925) 296-7340. Providers update this record themselves, so call before visiting.
How can I verify Maher Tama, M.D.'s license?
NPPES lists California license number A161762, 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 Maher Tama, M.D. prescribe under Medicare Part D?
In 2024, Maher Tama, M.D. had 482 Medicare Part D claims for 184 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is Maher Tama, M.D.'s MIPS final score?
The 2023 MIPS final score is 76.7 of 100, reported for the practice group. 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.