Michael H. Fenn, M.D.
Otolaryngology Physician · La Mesa, CA
Michael H. Fenn, M.D. is an otolaryngology physician with a practice address in La Mesa, California, and NPI 1013946904, issued on Jul 2, 2006. Check the license (California G17188, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Michael H. Fenn
- Credential
- M.D.
- Primary taxonomy
- Otolaryngology Physician 207Y00000X
- License number
- G17188 CA
Self-reported in NPPES; status is on the state search - Practice location
- 5565 Grossmont Center Dr, La Mesa, CA 91942
- Phone
- (619) 466-0048
- Enumerated
- Jul 2, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicaid ID
- 00G171880 CA
- Entity
- Type 1 · individual
8 nearest otolaryngology physician records → All 1,212 in California → Look up another NPI →
Also registered at 5565 Grossmont Center Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Sergio Berkstein, D.D.S.,M.S.Periodontics1780602623
- Edward Bowler, D.D.S.Periodontics1518978576
Verify Michael H. Fenn in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G17188Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average otolaryngology physician in 2024
22 Medicare Part D claims, against an average of 541 among the 8,339 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
Michael H. Fenn among 1,212 otolaryngology physician records in California
Michael H. Fenn, M.D. is one of 1,212 otolaryngology physician records with a practice address in California. 80% 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 7% of them.
- NPI issued2006 · 7% of these records are older, 52% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileNo · 67% of these records are
- Record last updated2007 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Y00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Otolaryngology Physician providers in California
There are 1,212 otolaryngology physician records in California.
All 1,212 in California → Every provider in La Mesa → Otolaryngology Physician nationwide →
The 8 otolaryngology physician records with the nearest ZIP codes
- James Amsberry, M.D.La Mesa, CA 919421689736522
- Rowley Busino, MDLa Mesa, CA 919421396997664
- Richard Liu, MDLa Mesa, CA 919421548286453
- Patrick McCallion, MDLa Mesa, CA 919421134144454
- Jeremiah Moles, MDLa Mesa, CA 919421003067745
- Omid Moshtaghi, MDLa Mesa, CA 919421730675927
- Alexis Patsias, M.D.La Mesa, CA 919421326452855
- Sean Skelton, D.O.La Mesa, CA 919421063592277
Common questions
What is Michael H. Fenn, M.D.'s NPI number?
Michael H. Fenn, M.D.'s National Provider Identifier (NPI) is 1013946904, issued on Jul 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Michael H. Fenn, M.D. located?
The NPPES record lists a practice address at 5565 Grossmont Center Dr, La Mesa, CA, 91942. Phone: (619) 466-0048. Providers update this record themselves, so call before visiting.
How can I verify Michael H. Fenn, M.D.'s license?
NPPES lists California license number G17188, 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 Michael H. Fenn, M.D. prescribe under Medicare Part D?
In 2024, Michael H. Fenn, M.D. had 22 Medicare Part D claims; the average among otolaryngology physician prescribers was 541. 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.