Mark Fisher, MD
Vascular Neurology Physician · Orange, CA
Mark Fisher, MD is a vascular neurology physician with a practice address in Orange, California, and NPI 1225132814, issued on Sep 12, 2006. Check the license (California G34527, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mark Fisher
- Credential
- MD
- Primary taxonomy
- Vascular Neurology Physician 2084V0102X
- License numbers
- G34527 CA
000000G34527 CA
Self-reported in NPPES; status is on the state search - Practice location
- Uci Medical Center, Orange, CA 92868
- Phone
- (714) 456-8978
- Enumerated
- Sep 12, 2006
- Record last updated
- Sep 12, 2024
- Medicare enrollment
- Enrolled (PECOS I20101005000245); accepts Medicare assignment
- Medical or professional school
- University Of Cincinnati College Of Medicine, 1975
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at Uci Medical Center
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Michael Alkire, MDAnesthesiology Physician1619057783
- Byron J Allen, MDCardiovascular Disease Physician1134202658
- Bogi Andersen, MDEndocrinology, Diabetes & Metabolism Physician1164502233
Verify Mark Fisher in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G34527Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
83% fewer Medicare Part D claims than the average vascular neurology physician in 2024
47 Medicare Part D claims for 12 beneficiaries, against an average of 270 among the 598 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Atorvastatin Calcium17 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 MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Regents OF The University OF Claifornia Univ NeursciencesOrange, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Vascular Neurology Physician providers in California
There are 74 vascular neurology physician records in California.
Other vascular neurology physician records in California
- Kunal Agrawal, M.D.San Diego, CA1093074122
- Gregory Albers, MDStanford, CA1205889698
- Kevin Attenhofer, M.D.San Francisco, CA1477819456
- Navpreet Bains, D.O..Colton, CA1588011860
- Nobl Barazangi, M.D.San Francisco, CA1609893437
- Reza Bavarsad Shahripour, MDSan Diego, CA1699129668
- Daniel Brooks, M.D.Santa Monica, CA1144519000
- Piotr Bzdyra, MDPomona, CA1942687090
- Charlene Chen, M.D.San Francisco, CA1831386846
- Jonathan Chou, M.D.Los Angeles, CA1588125231
Common questions
What is Mark Fisher, MD's NPI number?
Mark Fisher, MD's National Provider Identifier (NPI) is 1225132814, issued on Sep 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark Fisher, MD located?
The NPPES record lists a practice address at Uci Medical Center, Orange, CA, 92868. Phone: (714) 456-8978. Providers update this record themselves, so call before visiting.
How can I verify Mark Fisher, MD's license?
NPPES lists California license number G34527, 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 Mark Fisher, MD prescribe under Medicare Part D?
In 2024, Mark Fisher, MD had 47 Medicare Part D claims for 12 beneficiaries; the average among vascular neurology physician prescribers was 270. Part D covers Medicare prescriptions only.
What is Mark Fisher, MD's MIPS final score?
The 2023 MIPS final score is 100 of 100. 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.