Alethea Anne Bernstein, M.D.
Obstetrics & Gynecology Physician · San Marcos, CA
Alethea Anne Bernstein, M.D. is an obstetrics & gynecology physician with a practice address in San Marcos, California, and NPI 1407990716, issued on Feb 19, 2007. Check the license (California A98204, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Alethea Anne Bernstein
- Credential
- M.D.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- A98204 CA
Self-reported in NPPES; status is on the state search - Practice location
- 400 Craven RD, San Marcos, CA 92078
- Phone
- (760) 510-5666
- Enumerated
- Feb 19, 2007
- Record last updated
- Dec 16, 2021 (not updated in 5 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 5,088 in California → Look up another NPI →
Also registered at 400 Craven RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Tracy Abrams, R.N.Registered Nurse1073991261
- Eric Adiarte, M.D.Obstetrics & Gynecology Physician1902038284
- Shreya Aiyar, MDPediatrics Physician1922685981
- Najlaa Al-Jibouri, PHARM DPharmacist1447438965
- Jennifer Alexander, RCP, RRTPulmonary Function Technologist Certified Respiratory Therapist1023596442
- Marisa Alunni, M.D.Obstetrics & Gynecology Physician1710298476
Verify Alethea Anne Bernstein in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A98204Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
88% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
19 Medicare Part D claims for 12 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.
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.
Alethea Anne Bernstein among 5,088 obstetrics & gynecology physician records in California
Alethea Anne Bernstein, M.D. 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 fileNo · 53% of these records are
- Record last updated2021 · 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).
Obstetrics & Gynecology Physician providers in California
There are 5,088 obstetrics & gynecology physician records in California.
All 5,088 in California → Every provider in San Marcos → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Eric Adiarte, M.D.San Marcos, CA 920781902038284
- Marisa Alunni, M.D.San Marcos, CA 920781710298476
- Jorge Calderon, M.D.San Marcos, CA 920781407800881
- Radmila Kazanegra, M.D.San Marcos, CA 920781437277118
- Susanne KlaudtSan Marcos, CA 920781174608749
- Amber Knight, MDSan Marcos, CA 920781184989386
- George Kung, M.D.San Marcos, CA 920781134272891
- Stephanie Smith, DOSan Marcos, CA 920781811276629
Common questions
What is Alethea Anne Bernstein, M.D.'s NPI number?
Alethea Anne Bernstein, M.D.'s National Provider Identifier (NPI) is 1407990716, issued on Feb 19, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Alethea Anne Bernstein, M.D. located?
The NPPES record lists a practice address at 400 Craven RD, San Marcos, CA, 92078. Phone: (760) 510-5666. Providers update this record themselves, so call before visiting.
How can I verify Alethea Anne Bernstein, M.D.'s license?
NPPES lists California license number A98204, 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 Alethea Anne Bernstein, M.D. prescribe under Medicare Part D?
In 2024, Alethea Anne Bernstein, M.D. had 19 Medicare Part D claims for 12 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.