Marianne Fahmy, M.D.
Internal Medicine Physician · La Jolla, CA
Marianne Fahmy, M.D. is an internal medicine physician with a practice address in La Jolla, California, and NPI 1033321211, issued on May 3, 2007. Check the license (California A94894, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Marianne Fahmy
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A94894 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3350 LA Jolla Village Dr, La Jolla, CA 92037
- Phone
- (858) 552-8585
- Enumerated
- May 3, 2007
- Record last updated
- Dec 13, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20110623000265); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 3350 LA Jolla Village Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Canh-Nhut Nguyen, PHARM.D.Pharmacotherapy Pharmacist1457380966
- Jignesh Patel, PHARM.D.Pharmacist1427182922
Verify Marianne Fahmy in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A94894Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
85% fewer Medicare Part D claims than the average internal medicine physician in 2024
463 Medicare Part D claims for 193 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.
Most prescribed
- Gavilyte-C114 claims
- Omeprazole86 claims
- Mesalamine31 claims
- Pantoprazole Sodium28 claims
- Balsalazide Disodium20 claims
- Adefovir Dipivoxil12 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
- Southern California Permanente Medical GroupLos Angeles, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marianne Fahmy among 17,696 internal medicine physician records in California
Marianne Fahmy, 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 2007, is newer than 44% of them.
- NPI issued2007 · 44% of these records are older, 44% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2004 · 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).
158 internal medicine physician records list a practice address in La Jolla
They are 158 of the 3,648 NPPES records with a practice address in La Jolla, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in La Jolla → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Joseph Andrews, M.D.La Jolla, CA 920371588639876
- Vedka Begovic, M.D.La Jolla, CA 920371427034446
- Pooja Bhushan, MDLa Jolla, CA 920371730163551
- Pamila Brar, M.D.La Jolla, CA 920371013982602
- Annamaria Calabro, M.D.La Jolla, CA 920371508843244
- Bruce Covner, M.D.La Jolla, CA 920371720072192
- Neil Farber, MDLa Jolla, CA 920371043295363
- Shipra Khushu, M.D.La Jolla, CA 920371235118936
Common questions
What is Marianne Fahmy, M.D.'s NPI number?
Marianne Fahmy, M.D.'s National Provider Identifier (NPI) is 1033321211, issued on May 3, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Marianne Fahmy, M.D. located?
The NPPES record lists a practice address at 3350 LA Jolla Village Dr, La Jolla, CA, 92037. Phone: (858) 552-8585. Providers update this record themselves, so call before visiting.
How can I verify Marianne Fahmy, M.D.'s license?
NPPES lists California license number A94894, 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 Marianne Fahmy, M.D. prescribe under Medicare Part D?
In 2024, Marianne Fahmy, M.D. had 463 Medicare Part D claims for 193 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.