Michael Demetriou, MD
Neurology Physician · Orange, CA
Michael Demetriou, MD is a neurology physician with a practice address in Orange, California, and NPI 1992885099, issued on Oct 16, 2006. Check the license (California 000000A77231, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Michael Demetriou
- Credential
- MD
- Primary taxonomy
- Neurology Physician 2084N0400X
- License number
- 000000A77231 CA
Self-reported in NPPES; status is on the state search - Practice location
- Uci Medical Center, Orange, CA 92868
- Phone
- (714) 456-8978
- Enumerated
- Oct 16, 2006
- Record last updated
- Feb 14, 2008 (not updated in 18 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20101221000561); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 2,339 in California → Look up another NPI →
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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Verify Michael Demetriou in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 000000A77231Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
82% fewer Medicare Part D claims than the average neurology physician in 2024
246 Medicare Part D claims for 36 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 43% of claims.
Most prescribed
- Glatiramer Acetate43 claims
- Copaxone39 claims
- Gamunex-C34 claims
- Glatopa28 claims
- Gabapentin21 claims
- Privigen13 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).
Michael Demetriou among 2,339 neurology physician records in California
Michael Demetriou, MD is one of 2,339 neurology physician records with a practice address in California. 81% 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 4% of them.
- NPI issued2006 · 4% of these records are older, 59% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated1996 · median 2006 among the 1,628 with a school on file
- Record last updated2008 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurology Physician providers in California
There are 2,339 neurology physician records in California.
All 2,339 in California → Every provider in Orange → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- Daniela Bota, MDOrange, CA 928681942499884
- William Cable, MDOrange, CA 928681548340631
- Dale Di Stefano, M.D.Orange, CA 928681902822968
- Malcolm Dick, PHDOrange, CA 928681235182205
- Vivek Jain, MDOrange, CA 928681871679373
- Claudia Kawas, MDOrange, CA 928681629158894
- Mayank Pathak, M.D.Orange, CA 928681114959475
- Steven Schreiber, MDOrange, CA 928681164537593
Common questions
What is Michael Demetriou, MD's NPI number?
Michael Demetriou, MD's National Provider Identifier (NPI) is 1992885099, issued on Oct 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Michael Demetriou, 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 Michael Demetriou, MD's license?
NPPES lists California license number 000000A77231, 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 Demetriou, MD prescribe under Medicare Part D?
In 2024, Michael Demetriou, MD had 246 Medicare Part D claims for 36 beneficiaries; the average among neurology physician prescribers was 1,370. Part D covers Medicare prescriptions only.
What is Michael Demetriou, 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.