Sinda Marian Mein, MD
Gastroenterology Physician · Menlo Park, CA
Sinda Marian Mein, MD is a gastroenterology physician with a practice address in Menlo Park, California, and NPI 1376657734, issued on Aug 19, 2006. Check the license (California A69657, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Sinda Marian Mein
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- A69657 CA
Self-reported in NPPES; status is on the state search - Practice location
- 321 Middlefield RD Ste 260, Menlo Park, CA 94025
- Phone
- (650) 498-6652
- Enumerated
- Aug 19, 2006
- Record last updated
- Apr 15, 2024
- Medicare enrollment
- Enrolled (PECOS I20040908001418); accepts Medicare assignment
- Medical or professional school
- University Of Southern California Keck School Of Medicine, 1998
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 2,140 in California → Look up another NPI →
Also registered at 321 Middlefield RD Ste 260
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Charlie Michaudet, MDSports Medicine (Family Medicine) Physician1770802647
- Joellen Vanzander, MDDermatology Physician1881819019
Verify Sinda Marian Mein in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A69657Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
6% fewer Medicare Part D claims than the average gastroenterology physician in 2024
760 Medicare Part D claims for 228 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of claims.
Most prescribed
- Pantoprazole Sodium109 claims
- Famotidine106 claims
- Sod Sulf-Potass Sulf-Mag Sulf95 claims
- Linzess56 claims
- Omeprazole42 claims
- Dexlansoprazole Dr36 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 one group practice
- University Healthcare AllianceMenlo Park, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sinda Marian Mein among 2,140 gastroenterology physician records in California
Sinda Marian Mein, MD 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 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 48% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated1998 · median 2002 among the 1,538 with a school on file
- Record last updated2024 · 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 Menlo Park → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Mary Chan, MDMenlo Park, CA 940251790749430
- Tu Nguyen, MDMenlo Park, CA 940251497841969
- Harvey Young, M.D.Menlo Park, CA 940251093768483
- John Selling, MDPortola Valley, CA 940281386608024
- Stefan Chin, MDDaly City, CA 940151891794152
- John Fisher, M.D.Daly City, CA 940151639179799
- Rowena Garcia Chuapoco, MDDaly City, CA 940151578563789
- Mark Tsuchiyose, M.D.Daly City, CA 940151063412195
Common questions
What is Sinda Marian Mein, MD's NPI number?
Sinda Marian Mein, MD's National Provider Identifier (NPI) is 1376657734, issued on Aug 19, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Sinda Marian Mein, MD located?
The NPPES record lists a practice address at 321 Middlefield RD Ste 260, Menlo Park, CA, 94025. Phone: (650) 498-6652. Providers update this record themselves, so call before visiting.
How can I verify Sinda Marian Mein, MD's license?
NPPES lists California license number A69657, 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 Sinda Marian Mein, MD prescribe under Medicare Part D?
In 2024, Sinda Marian Mein, MD had 760 Medicare Part D claims for 228 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.