Andrea Mendelssohn, MD, FACOG, FABIHM
Obstetrics & Gynecology Physician · Lafayette, CA
Andrea Mendelssohn, MD, FACOG, FABIHM is an obstetrics & gynecology physician with a practice address in Lafayette, California, and NPI 1144275264, issued on May 24, 2006. Check the license (California A75537, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Andrea Mendelssohn
- Credential
- MD, FACOG, FABIHM
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- A75537 CA
Self-reported in NPPES; status is on the state search - Practice location
- 970 Dewing Ave Ste 203, Lafayette, CA 94549
- Phone
- (925) 299-9001
- Enumerated
- May 24, 2006
- Record last updated
- Jul 21, 2022
- Fax
- (925) 299-9018
- Medicaid ID
- 00A755370 CA
- Medicare enrollment
- Enrolled (PECOS I20250310000809); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 5,088 in California → Look up another NPI →
Also registered at 970 Dewing Ave Ste 203
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Anahat Sandhu, M.D.Obstetrics & Gynecology Physician1417988999
Verify Andrea Mendelssohn in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A75537Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
12% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
145 Medicare Part D claims for 61 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.
Most prescribed
- Estradiol33 claims
- Clobetasol Propionate15 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
- Gifford Medical Center IncRandolph, VT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Andrea Mendelssohn among 5,088 obstetrics & gynecology physician records in California
Andrea Mendelssohn, MD, FACOG, FABIHM 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 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 52% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated1997 · median 2004 among the 2,700 with a school on file
- Record last updated2022 · 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).
6 obstetrics & gynecology physician records list a practice address in Lafayette
They are 6 of the 736 NPPES records with a practice address in Lafayette, and 5,088 obstetrics & gynecology physician records in California.
All 5,088 in California → Every provider in Lafayette → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Lee Christianson, MDLafayette, CA 945491922363746
- Karine Hajyan, DOLafayette, CA 945491154644425
- Anahat Sandhu, M.D.Lafayette, CA 945491417988999
- Elisabeth Schleuning, MDLafayette, CA 945491538124102
- Nancy Wigginton, MDLafayette, CA 945491396824173
- Michael Bleecker, M.D.Livermore, CA 945501437218328
- Aditi Bommireddy, MDLivermore, CA 945511205398609
- Nancy Everett, MDLivermore, CA 945511699853796
Common questions
What is Andrea Mendelssohn, MD, FACOG, FABIHM's NPI number?
Andrea Mendelssohn, MD, FACOG, FABIHM's National Provider Identifier (NPI) is 1144275264, issued on May 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Andrea Mendelssohn, MD, FACOG, FABIHM located?
The NPPES record lists a practice address at 970 Dewing Ave Ste 203, Lafayette, CA, 94549. Phone: (925) 299-9001. Providers update this record themselves, so call before visiting.
How can I verify Andrea Mendelssohn, MD, FACOG, FABIHM's license?
NPPES lists California license number A75537, 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 Andrea Mendelssohn, MD, FACOG, FABIHM prescribe under Medicare Part D?
In 2024, Andrea Mendelssohn, MD, FACOG, FABIHM had 145 Medicare Part D claims for 61 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.