NPPES file of Aug 9, 2026

Mehrnoosh Almassi, MD

Obstetrics & Gynecology Physician · Walnut Creek, CA

Mehrnoosh Almassi, MD is an obstetrics & gynecology physician with a practice address in Walnut Creek, California, and NPI 1679622872, issued on Jan 9, 2007. Check the license (California A74962, as entered in NPPES) on the Medical Board of California; 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
1679622872
Name
Mehrnoosh Almassi
Credential
MD
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
A74962 CA
Self-reported in NPPES; status is on the state search
Practice location
1840 San Miguel Dr Ste 100, Walnut Creek, CA 94596
Phone
(925) 356-8990
Enumerated
Jan 9, 2007
Record last updated
Feb 23, 2026
Fax
(925) 356-8997
Medicare enrollment
Enrolled (PECOS I20090508000496); accepts Medicare assignment
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 1840 San Miguel Dr Ste 100

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

  1. Angela D'SouzaPhysical Therapist1376248211

Verify Mehrnoosh Almassi in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A74962
    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 California license search

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99% more Medicare Part D claims than the average obstetrics & gynecology physician in 2024

328 Medicare Part D claims for 124 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.

  1. Mehrnoosh Almassi328
  2. Specialty average165

Most prescribed

  1. Estradiol57 claims
  2. Fluconazole23 claims
  3. Clobetasol Propionate21 claims
  4. Valacyclovir18 claims
  5. Misoprostol16 claims
  6. Nitrofurantoin Mono-Macro15 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.

Industry payments in 2024: $22.15

1 payment: food and beverage; the largest payer was Sumitomo Pharma America, Inc. The 21,429 providers of this specialty with any payment received $1,030.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Mehrnoosh Almassi$22.15
  2. Specialty average$1,030.61

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Mehrnoosh Almassi among 5,088 obstetrics & gynecology physician records in California

Mehrnoosh Almassi, MD is one of 5,088 obstetrics & gynecology physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 48% of them.

  • NPI issued2007 · 48% of these records are older, 38% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 53% of these records are
  • Graduated2003 · median 2004 among the 2,700 with a school on file
  • Record last updated2026 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

56 obstetrics & gynecology physician records list a practice address in Walnut Creek

They are 56 of the 6,170 NPPES records with a practice address in Walnut Creek, and 5,088 obstetrics & gynecology physician records in California.

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Derek Abbassi, MDWalnut Creek, CA 945961841364155
  2. Phuong-Anh Bui, MDWalnut Creek, CA 945961396817102
  3. Elaine Carlitz, MDWalnut Creek, CA 945961902984065
  4. Donna Di Cenzo, MDWalnut Creek, CA 945961710039524
  5. Jean Kayser, MDWalnut Creek, CA 945961659459741
  6. Serena LinWalnut Creek, CA 945961366650889
  7. Sara Mark, MDWalnut Creek, CA 945961417035924
  8. David Niver, MDWalnut Creek, CA 945961407934573

Common questions

What is Mehrnoosh Almassi, MD's NPI number?

Mehrnoosh Almassi, MD's National Provider Identifier (NPI) is 1679622872, issued on Jan 9, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Mehrnoosh Almassi, MD located?

The NPPES record lists a practice address at 1840 San Miguel Dr Ste 100, Walnut Creek, CA, 94596. Phone: (925) 356-8990. Providers update this record themselves, so call before visiting.

How can I verify Mehrnoosh Almassi, MD's license?

NPPES lists California license number A74962, 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 Mehrnoosh Almassi, MD prescribe under Medicare Part D?

In 2024, Mehrnoosh Almassi, MD had 328 Medicare Part D claims for 124 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.