NPPES file of Aug 9, 2026

Parshaw Jonathan Dorriz, MD

Neurology Physician · Mission Viejo, CA

Parshaw Jonathan Dorriz, MD is a neurology physician with a practice address in Mission Viejo, California, and NPI 1972940625, issued on Jun 3, 2013. Check the license (California A137931, 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
1972940625
Name
Parshaw Jonathan Dorriz
Credential
MD
Primary taxonomy
Neurology Physician 2084N0400X
License number
A137931 CA
Self-reported in NPPES; status is on the state search
Practice location
26800 Crown Valley Pkwy Ste 385, Mission Viejo, CA 92691
Phone
(949) 542-8002
Enumerated
Jun 3, 2013
Record last updated
Oct 21, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(949) 542-7337
Medicare enrollment
Enrolled (PECOS I20180801001802); 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 26800 Crown Valley Pkwy Ste 385

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

  1. Janny Clark, NPNurse Practitioner1932816626
  2. Samuel Frank, MDNeuromuscular Medicine (Psychiatry & Neurology) Physician1922637594
  3. Basit Rahim, MDVascular Neurology Physician1003253071
  4. Richa Singh, MDNeurology Physician1902426265
  5. Jose Suazo, PA-CPhysician Assistant1639122153
  6. Ronak Vora, D.O.Neurology Physician1942560321

Verify Parshaw Jonathan Dorriz in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A137931
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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23% fewer Medicare Part D claims than the average neurology physician in 2024

1,051 Medicare Part D claims for 171 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims.

  1. Parshaw Dorriz1,051
  2. Specialty average1,370

Most prescribed

  1. Levetiracetam157 claims
  2. Donepezil Hcl107 claims
  3. Lamotrigine103 claims
  4. Memantine Hcl44 claims
  5. Divalproex Sodium42 claims
  6. Gabapentin39 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: $371,778.95

133 payments; by number, the most common kind was food and beverage; the largest payer was Ceribell, 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. Parshaw Dorriz$371,779
  2. Specialty average$8,318

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. Providence Medical FoundationFullerton, CA

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

Neurology Physician providers in California

There are 2,339 neurology physician records in California.

Other neurology physician records in California

  1. Venkat Raghav Aachi, MDThousand Oaks, CA1740640051
  2. John Aalbers, M.D.San Diego, CA1942262431
  3. Kafia Abbasi, M.D.French Camp, CA1215114897
  4. Puya Abbassi, D.O.San Jose, CA1831695428
  5. Ahmed Abdelhak, MB CHBSan Francisco, CA1053013748
  6. Diana Abdulrahman, M.D.Pomona, CA1518276880
  7. Hadi Abou El Hassan, MDLos Angeles, CA1053995720
  8. John Paul Aboubechara, MD, PHDPalo Alto, CA1205461803
  9. Saheil AboutalibLong Beach, CA1548551112
  10. Justin Abraham, M.D., M.B.A.Santa Barbara, CA1225322522

Common questions

What is Parshaw Jonathan Dorriz, MD's NPI number?

Parshaw Jonathan Dorriz, MD's National Provider Identifier (NPI) is 1972940625, issued on Jun 3, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Parshaw Jonathan Dorriz, MD located?

The NPPES record lists a practice address at 26800 Crown Valley Pkwy Ste 385, Mission Viejo, CA, 92691. Phone: (949) 542-8002. Providers update this record themselves, so call before visiting.

How can I verify Parshaw Jonathan Dorriz, MD's license?

NPPES lists California license number A137931, 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 Parshaw Jonathan Dorriz, MD prescribe under Medicare Part D?

In 2024, Parshaw Jonathan Dorriz, MD had 1,051 Medicare Part D claims for 171 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.