Marie Louise La Cour, M.D.
Obstetrics & Gynecology Physician · San Leandro, CA
Marie Louise La Cour, M.D. is an obstetrics & gynecology physician with a practice address in San Leandro, California, and NPI 1144372947, issued on Jan 18, 2007. Check the license (California A55395, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Marie Louise La Cour
- Credential
- M.D.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- A55395 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2500 Merced St, San Leandro, CA 94577
- Phone
- (510) 454-1000
- Enumerated
- Jan 18, 2007
- Record last updated
- Dec 13, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 00A553950 CA
- Medicare enrollment
- Enrolled (PECOS I20110414000770); accepts Medicare assignment
- Medical or professional school
- University Of Southern California Keck School Of Medicine, 1994
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 5,088 in California → Look up another NPI →
Also registered at 2500 Merced St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Marie Louise La Cour in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A55395Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
13% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
144 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 14% of claims.
Most prescribed
- Estradiol41 claims
- Hydrocortisone18 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
- Permanente Medical Group IncSan Leandro, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marie Louise La Cour among 5,088 obstetrics & gynecology physician records in California
Marie Louise La Cour, 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 fileYes · 53% of these records are
- Graduated1994 · median 2004 among the 2,700 with a school on file
- 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 Leandro → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Linda Catherine Degusta, M.D.San Leandro, CA 945771578635397
- Simone Katz, M.D.San Leandro, CA 945771770661522
- Colleen Kavanagh, M.D.San Leandro, CA 945771174608830
- Jolyn Leung, M.D.San Leandro, CA 945771629372180
- Sarah Mark-Drasin, M.D.San Leandro, CA 945771700957610
- John Polito, M.D.San Leandro, CA 945771952489965
- Robert Rubeshaw, M.D.San Leandro, CA 945771629156484
- Katharine Simmons, M.D.San Leandro, CA 945771508008624
Common questions
What is Marie Louise La Cour, M.D.'s NPI number?
Marie Louise La Cour, M.D.'s National Provider Identifier (NPI) is 1144372947, issued on Jan 18, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Marie Louise La Cour, M.D. located?
The NPPES record lists a practice address at 2500 Merced St, San Leandro, CA, 94577. Phone: (510) 454-1000. Providers update this record themselves, so call before visiting.
How can I verify Marie Louise La Cour, M.D.'s license?
NPPES lists California license number A55395, 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 Marie Louise La Cour, M.D. prescribe under Medicare Part D?
In 2024, Marie Louise La Cour, M.D. had 144 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.