Seyed Ahmad Sajjadi, M.D., PHD
Behavioral Neurology & Neuropsychiatry Physician · Orange, CA
Seyed Ahmad Sajjadi, M.D., PHD is a behavioral neurology & neuropsychiatry physician with a practice address in Orange, California, and NPI 1750733325, issued on Jul 7, 2016. Check the license (California A172021, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Seyed Ahmad Sajjadi
- Credential
- M.D., PHD
- Primary taxonomy
- Behavioral Neurology & Neuropsychiatry Physician 2084B0040X
- License numbers
- A172021 CA
F 440 CA
Self-reported in NPPES; status is on the state search - Practice location
- 101 The City Dr S, Orange, CA 92868
- Phone
- (714) 456-7890
- Enumerated
- Jul 7, 2016
- Record last updated
- Sep 25, 2024
- Medicare enrollment
- Enrolled (PECOS I20160729000886); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest behavioral neurology & neuropsychiatry physician records → All 35 in California → Look up another NPI →
Also registered at 101 The City Dr S
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Danny Abad, PAPhysician Assistant1477158673
- Edward AbaradoStudent in an Organized Health Care Education/Training Program1912855198
- Nagina Abdiani, DOGeriatric Medicine (Family Medicine) Physician1518543271
- Mariam Abdul-Latif, M.D.Pediatrics Physician1538418884
- Eric AbelloOtolaryngology Physician1922566215
- Brandon Abeyta, MDAnesthesiology Physician1841291804
Verify Seyed Ahmad Sajjadi in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A172021Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
19% more Medicare Part D claims than the average behavioral neurology & neuropsychiatry physician in 2024
976 Medicare Part D claims for 208 beneficiaries, against an average of 823 among the 148 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.
Most prescribed
- Donepezil Hcl245 claims
- Memantine Hcl218 claims
- Citalopram Hbr78 claims
- Quetiapine Fumarate70 claims
- Rivastigmine51 claims
- Mirtazapine30 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).
Seyed Ahmad Sajjadi among 35 behavioral neurology & neuropsychiatry physician records in California
Seyed Ahmad Sajjadi, M.D., PHD is one of 35 behavioral neurology & neuropsychiatry 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 2016, is newer than 71% of them.
- NPI issued2016 · 71% of these records are older, 26% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 54% of these records are
- Graduated2002 · median 2002 among the 19 with a school on file
- Record last updated2024 · 31% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084B0040X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Behavioral Neurology & Neuropsychiatry Physician providers in California
There are 35 behavioral neurology & neuropsychiatry physician records in California.
All 35 in California → Every provider in Orange → Behavioral Neurology & Neuropsychiatry Physician nationwide →
The 8 behavioral neurology & neuropsychiatry physician records with the nearest ZIP codes
- Neda Heidari, MDOxnard, CA 930301003028556
- Suamhirs Piraino-GuzmanSanta Ana, CA 927051831486240
- Brian Hitt, M.D., PH.D.Irvine, CA 926971225449796
- Michael Frazier, M.D.Westminster, CA 926831225396591
- Monte BuschsbaumLaguna Beach, CA 926511861904401
- Zeeruk Iqbal, MDMoreno Valley, CA 925551417792227
- Eunju Kim, MDBakersfield, CA 933011336834563
- Peter Wagner, M.D.Rancho Mirage, CA 922701962403774
Common questions
What is Seyed Ahmad Sajjadi, M.D., PHD's NPI number?
Seyed Ahmad Sajjadi, M.D., PHD's National Provider Identifier (NPI) is 1750733325, issued on Jul 7, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Seyed Ahmad Sajjadi, M.D., PHD located?
The NPPES record lists a practice address at 101 The City Dr S, Orange, CA, 92868. Phone: (714) 456-7890. Providers update this record themselves, so call before visiting.
How can I verify Seyed Ahmad Sajjadi, M.D., PHD's license?
NPPES lists California license number A172021, 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 Seyed Ahmad Sajjadi, M.D., PHD prescribe under Medicare Part D?
In 2024, Seyed Ahmad Sajjadi, M.D., PHD had 976 Medicare Part D claims for 208 beneficiaries; the average among behavioral neurology & neuropsychiatry physician prescribers was 823. Part D covers Medicare prescriptions only.
What is Seyed Ahmad Sajjadi, M.D., PHD'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.