NPPES file of Aug 9, 2026

Mounir El Fatmi, MD

Internal Medicine Physician · Thousand Oaks, CA

Mounir El Fatmi, MD is an internal medicine physician with a practice address in Thousand Oaks, California, and NPI 1356406789, issued on Dec 26, 2006. Check the license (California A99792, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1356406789
Name
Mounir El Fatmi
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License numbers
A99792 CA
2005019453 MO
Self-reported in NPPES; status is on the state search
Practice location
3299 Rikkard Dr, Thousand Oaks, CA 91362
Phone
(201) 658-8265
Enumerated
Dec 26, 2006
Record last updated
Oct 30, 2014 (not updated in 12 years: call before relying on the address or phone)
Medicaid ID
207380601 MO
Medicare enrollment
Enrolled (PECOS I20110309000626); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Mounir El Fatmi in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A99792
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

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83% fewer Medicare Part D claims than the average internal medicine physician in 2024

526 Medicare Part D claims for 108 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 3% of claims.

  1. Mounir El Fatmi526
  2. Specialty average3,176

Most prescribed

  1. Doxycycline Hyclate113 claims
  2. Mupirocin78 claims
  3. Gabapentin54 claims
  4. Cephalexin29 claims
  5. Furosemide21 claims
  6. Bumetanide20 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.

Industry payments in 2024: $243.98

8 payments; by number, the most common kind was food and beverage; the largest payer was Smith+Nephew, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Mounir El Fatmi$243.98
  2. Specialty average$1,303.06

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Mounir El Fatmi among 17,696 internal medicine physician records in California

Mounir El Fatmi, MD 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 updated2014 · 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).

62 internal medicine physician records list a practice address in Thousand Oaks

They are 62 of the 2,434 NPPES records with a practice address in Thousand Oaks, and 17,696 internal medicine physician records in California.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Thomas Giannulli, MS, MSWestlake Village, CA 913621861637027
  2. Robert Gold, MDThousand Oaks, CA 913621164489456
  3. Richard Low, MDWestlake Village, CA 913621467343038
  4. Joseph Miletich, M.D.Westlake Village, CA 913621548690290
  5. Amit Monga, MDThousand Oaks, CA 913621700021805
  6. Naj NagendranThousand Oaks, CA 913621871810820
  7. Natalie Abrahamian, M.D.Westlake Village, CA 913611356882567
  8. Diana AlaviThousand Oaks, CA 913611700276680

Common questions

What is Mounir El Fatmi, MD's NPI number?

Mounir El Fatmi, MD's National Provider Identifier (NPI) is 1356406789, issued on Dec 26, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mounir El Fatmi, MD located?

The NPPES record lists a practice address at 3299 Rikkard Dr, Thousand Oaks, CA, 91362. Phone: (201) 658-8265. Providers update this record themselves, so call before visiting.

How can I verify Mounir El Fatmi, MD's license?

NPPES lists California license number A99792, 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 Mounir El Fatmi, MD prescribe under Medicare Part D?

In 2024, Mounir El Fatmi, MD had 526 Medicare Part D claims for 108 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.