NPPES file of Aug 9, 2026

Mohammad E. Rassouli, MD

Neurology Physician · Mission Viejo, CA

Mohammad E. Rassouli, MD is a neurology physician with a practice address in Mission Viejo, California, and NPI 1134166010, issued on Jun 1, 2006. Check the license (California A50587, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1134166010
Name
Mohammad E. Rassouli
Credential
MD
Primary taxonomy
Neurology Physician 2084N0400X
License number
A50587 CA
Self-reported in NPPES; status is on the state search
Practice location
25982 Pala Ste 170, Mission Viejo, CA 92691
Phone
(949) 716-6134
Enumerated
Jun 1, 2006
Record last updated
Aug 14, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(949) 266-9719
Medicaid ID
31647900 WI
Medicare enrollment
Enrolled (PECOS I20140129000952); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 25982 Pala Ste 170

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Reza Allamehzadeh, M.DInternal Medicine Physician1467606053

Verify Mohammad E. Rassouli in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A50587
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

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55% fewer Medicare Part D claims than the average neurology physician in 2024

612 Medicare Part D claims for 98 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.

  1. Mohammad Rassouli612
  2. Specialty average1,370

Most prescribed

  1. Memantine Hcl88 claims
  2. Gabapentin49 claims
  3. Ropinirole Hcl34 claims
  4. Duloxetine Hcl28 claims
  5. Donepezil Hcl26 claims
  6. Levetiracetam26 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.

Industry payments in 2024: $175.64

1 payment: food and beverage; the largest payer was Medtronic, 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.

  1. Mohammad Rassouli$175.64
  2. Specialty average$8,318.07

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Caduceus Physicians Medical GroupIrvine, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Mohammad E. Rassouli among 2,339 neurology physician records in California

Mohammad E. Rassouli, 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
  • Graduated1974 · median 2006 among the 1,628 with a school on file
  • Record last updated2018 · 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.

The 8 neurology physician records with the nearest ZIP codes

  1. Michael Cummings, MDMission Viejo, CA 926911538151493
  2. Parshaw Dorriz, MDMission Viejo, CA 926911972940625
  3. Stephen Jenkins, M.D.Mission Viejo, CA 926911881619807
  4. Mahmoud Kreidiie, M.D.Mission Viejo, CA 926911265531396
  5. Marco Lopez Vizcarra, M.D.Mission Viejo, CA 926911467663963
  6. Fred Nour, MDMission Viejo, CA 926911881629350
  7. Hamid Salehi, MDMission Viejo, CA 926911992733257
  8. Robert Simon, M.D.Mission Viejo, CA 926911972527885

Common questions

What is Mohammad E. Rassouli, MD's NPI number?

Mohammad E. Rassouli, MD's National Provider Identifier (NPI) is 1134166010, issued on Jun 1, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mohammad E. Rassouli, MD located?

The NPPES record lists a practice address at 25982 Pala Ste 170, Mission Viejo, CA, 92691. Phone: (949) 716-6134. Providers update this record themselves, so call before visiting.

How can I verify Mohammad E. Rassouli, MD's license?

NPPES lists California license number A50587, 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 Mohammad E. Rassouli, MD prescribe under Medicare Part D?

In 2024, Mohammad E. Rassouli, MD had 612 Medicare Part D claims for 98 beneficiaries; the average among neurology physician prescribers was 1,370. Part D covers Medicare prescriptions only.

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.