Amy K. Weimer, M.D.
Internal Medicine Physician · Santa Monica, CA
Amy K. Weimer, M.D. is an internal medicine physician with a practice address in Santa Monica, California, and NPI 1396713426, issued on Mar 14, 2006. Check the license (California A74204, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Amy K. Weimer
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A74204 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1245 16TH St Ste 125, Santa Monica, CA 90404
- Phone
- (310) 301-8714
- Enumerated
- Mar 14, 2006
- Record last updated
- Jan 12, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20031230000543); accepts Medicare assignment
- Medical or professional school
- University Of California, San Diego School Of Medicine, 1999
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 1245 16TH St Ste 125
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Amy K. Weimer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A74204Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average internal medicine physician in 2024
320 Medicare Part D claims for 35 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Amlodipine Besylate26 claims
- Fluticasone Propionate16 claims
- Levothyroxine Sodium14 claims
- Atorvastatin Calcium13 claims
- Rosuvastatin Calcium13 claims
- Estradiol Valerate12 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
- The Regents OF The University OF CaliforniaSanta Monica, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Amy K. Weimer among 17,696 internal medicine physician records in California
Amy K. Weimer, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% 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, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1999 · median 2004 among the 11,065 with a school on file
- Record last updated2021 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
168 internal medicine physician records list a practice address in Santa Monica
They are 168 of the 5,151 NPPES records with a practice address in Santa Monica, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Santa Monica → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Robert Ashley, MDSanta Monica, CA 904041780628487
- Mitchell Becker, M.D.Santa Monica, CA 904041922033935
- Chiquita Flowers, M.D.Santa Monica, CA 904041972595700
- Glenn Gorlitsky, M.D.Santa Monica, CA 904041881625143
- Oscar Hernandez, M.D.Santa Monica, CA 904041699706952
- Mark McGowan, MDSanta Monica, CA 904041720015902
- Alex Messina, MDSanta Monica, CA 904041902867823
- Mark Nachman, MDSanta Monica, CA 904041104803683
Common questions
What is Amy K. Weimer, M.D.'s NPI number?
Amy K. Weimer, M.D.'s National Provider Identifier (NPI) is 1396713426, issued on Mar 14, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Amy K. Weimer, M.D. located?
The NPPES record lists a practice address at 1245 16TH St Ste 125, Santa Monica, CA, 90404. Phone: (310) 301-8714. Providers update this record themselves, so call before visiting.
How can I verify Amy K. Weimer, M.D.'s license?
NPPES lists California license number A74204, 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 Amy K. Weimer, M.D. prescribe under Medicare Part D?
In 2024, Amy K. Weimer, M.D. had 320 Medicare Part D claims for 35 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.