Michael S. Hepfer, MD
Diagnostic Radiology Physician · Northridge, CA
Michael S. Hepfer, MD is a diagnostic radiology physician with a practice address in Northridge, California, and NPI 1578578266, issued on Jul 30, 2006. Check the license (California A86432, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Michael S. Hepfer
- Credential
- MD
- Primary taxonomy
- Diagnostic Radiology Physician 2085R0202X
- License number
- A86432 CA
Self-reported in NPPES; status is on the state search - Practice location
- 18436 Roscoe Blvd, Northridge, CA 91325
- Phone
- (818) 435-1400
- Enumerated
- Jul 30, 2006
- Record last updated
- Feb 19, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20200226001595); accepts Medicare assignment
- Medical or professional school
- Tulane University School Of Medicine, 1999
- Entity
- Type 1 · individual
8 nearest diagnostic radiology physician records → All 4,500 in California → Look up another NPI →
Also registered at 18436 Roscoe Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Raymond AzabBody Imaging Physician1528221983
- Christopher Bedford, M.D.Diagnostic Radiology Physician1255692935
- Rajesh Bhavsar, M.D.Vascular & Interventional Radiology Physician1043471022
- Geraldine Chang, M.D.Diagnostic Radiology Physician1831486539
- Tzyy Shyang Chao, M.D.Diagnostic Radiology Physician1801213806
- Jeremy Chin, M.D.Diagnostic Radiology Physician1700229994
Verify Michael S. Hepfer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A86432Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
16% more Medicare Part D claims than the average diagnostic radiology physician in 2024
59 Medicare Part D claims for 13 beneficiaries, against an average of 51 among the 2,711 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 24 claims were for opioids.
Most prescribed
- Ondansetron Hcl21 claims
- Naproxen14 claims
- Hydrocodone-Acetaminophen12 claims
- Tramadol Hcl12 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 87.7 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $423.28
12 payments; by number, the most common kind was food and beverage; the largest payer was Inari Medical, Inc. The 8,048 providers of this specialty with any payment received $2,488.38 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 4 group practices
- Golden State Imaging Associates IncWailuku, HI
- KC Tan MD Medical CorporationVentura, CA
- Mountain Communities Healthcare DistrictWeaverville, CA
- Renaissance Imaging Medical Associates IncHonolulu, HI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael S. Hepfer among 4,500 diagnostic radiology physician records in California
Michael S. Hepfer, MD is one of 4,500 diagnostic radiology physician records with a practice address in California. 74% 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 · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated1999 · median 2004 among the 3,130 with a school on file
- Record last updated2019 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Diagnostic Radiology Physician providers in California
There are 4,500 diagnostic radiology physician records in California.
All 4,500 in California → Every provider in Northridge → Diagnostic Radiology Physician nationwide →
The 8 diagnostic radiology physician records with the nearest ZIP codes
- Christopher Bedford, M.D.Northridge, CA 913251255692935
- Geraldine Chang, M.D.Northridge, CA 913251831486539
- Tzyy Shyang Chao, M.D.Northridge, CA 913251801213806
- Jeremy Chin, M.D.Northridge, CA 913251700229994
- Kellie Curtis, MDNorthridge, CA 913251104985845
- Ryan FrankeNorthridge, CA 913251295093375
- Varand Ghazikhanian, MDNorthridge, CA 913251578759395
- Rajiv Pai, M.D.Northridge, CA 913251760640742
Common questions
What is Michael S. Hepfer, MD's NPI number?
Michael S. Hepfer, MD's National Provider Identifier (NPI) is 1578578266, issued on Jul 30, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Michael S. Hepfer, MD located?
The NPPES record lists a practice address at 18436 Roscoe Blvd, Northridge, CA, 91325. Phone: (818) 435-1400. Providers update this record themselves, so call before visiting.
How can I verify Michael S. Hepfer, MD's license?
NPPES lists California license number A86432, 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 S. Hepfer, MD prescribe under Medicare Part D?
In 2024, Michael S. Hepfer, MD had 59 Medicare Part D claims for 13 beneficiaries; the average among diagnostic radiology physician prescribers was 51. Part D covers Medicare prescriptions only.
What is Michael S. Hepfer, MD's MIPS final score?
The 2023 MIPS final score is 87.7 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.