Mehrdad Michael Mahdad, M.D.
Neurology Physician · Fountain Valley, CA
Mehrdad Michael Mahdad, M.D. is a neurology physician with a practice address in Fountain Valley, California, and NPI 1225092190, issued on Apr 17, 2006. Check the license (California A42941, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mehrdad Michael Mahdad
- Credential
- M.D.
- Primary taxonomy
- Neurology Physician 2084N0400X
- License number
- A42941 CA
Self-reported in NPPES; status is on the state search - Practice location
- 11180 Warner Ave, Fountain Valley, CA 92708
- Phone
- (714) 546-5505
- Enumerated
- Apr 17, 2006
- Record last updated
- Jul 13, 2026
- Fax
- (714) 546-0425
- Medicare enrollment
- Enrolled (PECOS I20080118000614); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 2,339 in California → Look up another NPI →
Also registered at 11180 Warner Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mehrdad Michael Mahdad in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A42941Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.0 times the Medicare Part D claims of the average neurology physician in 2024
4,136 Medicare Part D claims for 745 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims. 23 claims were for opioids.
Most prescribed
- Donepezil Hcl630 claims
- Memantine Hcl521 claims
- Gabapentin251 claims
- Carbidopa-Levodopa243 claims
- Levetiracetam180 claims
- Lorazepam139 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): 0 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).
Industry payments in 2024: $717.32
24 payments; by number, the most common kind was food and beverage; the largest payer was Teva Pharmaceuticals USA, Inc. The 10,858 providers of this specialty with any payment received $8,318.07 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.
Mehrdad Michael Mahdad among 2,339 neurology physician records in California
Mehrdad Michael Mahdad, M.D. 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
- Graduated1980 · median 2006 among the 1,628 with a school on file
- Record last updated2026 · 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 Fountain Valley → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- Martin Backman, M.D.Santa Ana, CA 927081699738385
- Abdullah Ibish, MDFountain Valley, CA 927081154783397
- Tim Lai, M.D.Fountain Valley, CA 927081295094324
- Deepmala Nandanwar, M.D.Fountain Valley, CA 927081942685094
- Duke Phan, MDFountain Valley, CA 927081437352630
- Scott Shoemaker, MDFountain Valley, CA 927081881632784
- Daniel Truong, M.D.Fountain Valley, CA 927081992720916
- Kong Truong, M.D.Fountain Valley, CA 927081023329125
Common questions
What is Mehrdad Michael Mahdad, M.D.'s NPI number?
Mehrdad Michael Mahdad, M.D.'s National Provider Identifier (NPI) is 1225092190, issued on Apr 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mehrdad Michael Mahdad, M.D. located?
The NPPES record lists a practice address at 11180 Warner Ave, Fountain Valley, CA, 92708. Phone: (714) 546-5505. Providers update this record themselves, so call before visiting.
How can I verify Mehrdad Michael Mahdad, M.D.'s license?
NPPES lists California license number A42941, 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 Mehrdad Michael Mahdad, M.D. prescribe under Medicare Part D?
In 2024, Mehrdad Michael Mahdad, M.D. had 4,136 Medicare Part D claims for 745 beneficiaries; the average among neurology physician prescribers was 1,370. Part D covers Medicare prescriptions only.
What is Mehrdad Michael Mahdad, M.D.'s MIPS final score?
The 2023 MIPS final score is 0 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.