NPPES file of Aug 9, 2026

Michael Christopher Fangerow, D.O.

Internal Medicine Physician · San Diego, CA

Michael Christopher Fangerow, D.O. is an internal medicine physician with a practice address in San Diego, California, and NPI 1952697740, issued on Jun 21, 2011. Check the license (California 16904, 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
1952697740
Name
Michael Christopher Fangerow
Credential
D.O.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
16904 CA
Self-reported in NPPES; status is on the state search
Practice location
6386 Alvarado CT Ste 101, San Diego, CA 92120
Phone
(858) 554-1212
Enumerated
Jun 21, 2011
Record last updated
Sep 7, 2022
Fax
(858) 795-1195
Medicare enrollment
Enrolled (PECOS I20220907002819); accepts Medicare assignment
Medical or professional school
Des Moines University Of Osteopathic Medicine And Health Sciences, 2011
Telehealth
Offers telehealth (CMS)
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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Also registered at 6386 Alvarado CT Ste 101

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Colleen Brown, PA-CPhysician Assistant1902581093
  2. Aneel Henry, MDInternal Medicine Physician1639661564
  3. Rebecca Henry, MDFamily Medicine Physician1750948717

Verify Michael Christopher Fangerow in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 16904
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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13% fewer Medicare Part D claims than the average internal medicine physician in 2024

2,763 Medicare Part D claims for 322 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 75 claims were for opioids.

  1. Michael Fangerow2,763
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium129 claims
  2. Amlodipine Besylate115 claims
  3. Gabapentin87 claims
  4. Levothyroxine Sodium78 claims
  5. Lisinopril75 claims
  6. Losartan Potassium74 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: $286.71

13 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk 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. Michael Fangerow$286.71
  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.

Bills Medicare through one group practice

  1. Monica Perlman MD IncSan Diego, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Michael Christopher Fangerow among 17,696 internal medicine physician records in California

Michael Christopher Fangerow, D.O. 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 2011, is newer than 66% of them.

  • NPI issued2011 · 66% of these records are older, 32% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2011 · median 2004 among the 11,065 with a school on file
  • Record last updated2022 · 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).

961 internal medicine physician records list a practice address in San Diego

They are 961 of the 52,937 NPPES records with a practice address in San Diego, and 17,696 internal medicine physician records in California.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Wilfredo Abesamis, M.D.San Diego, CA 921201992754832
  2. Kenneth Antons, M.D.San Diego, CA 921201982668182
  3. David Chang, M.D.San Diego, CA 921201073596342
  4. Fred Corey, M.D.San Diego, CA 921201912989674
  5. Elaine Gertser, MDSan Diego, CA 921201992719967
  6. Joanne Keenan, D.O.San Diego, CA 921201043281074
  7. Hyunsoo Kim, MDSan Diego, CA 921201598789737
  8. Murray Kornblit, M.D.San Diego, CA 921201932181682

Common questions

What is Michael Christopher Fangerow, D.O.'s NPI number?

Michael Christopher Fangerow, D.O.'s National Provider Identifier (NPI) is 1952697740, issued on Jun 21, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Michael Christopher Fangerow, D.O. located?

The NPPES record lists a practice address at 6386 Alvarado CT Ste 101, San Diego, CA, 92120. Phone: (858) 554-1212. Providers update this record themselves, so call before visiting.

How can I verify Michael Christopher Fangerow, D.O.'s license?

NPPES lists California license number 16904, 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 Christopher Fangerow, D.O. prescribe under Medicare Part D?

In 2024, Michael Christopher Fangerow, D.O. had 2,763 Medicare Part D claims for 322 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.