NPPES file of Aug 9, 2026

Nassim Matin, M.D.

Neurocritical Care Physician · Phoenix, AZ

Nassim Matin, M.D. is a neurocritical care physician with a practice address in Phoenix, Arizona, and NPI 1588196844, issued on Mar 28, 2017. Check the license (Arizona 69454, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1588196844
Name
Nassim Matin
Credential
M.D.
Primary taxonomy
Neurocritical Care Physician 2084A2900X
License numbers
69454 AZ
MD61144781 WA
Self-reported in NPPES; status is on the state search
Practice location
240 W Thomas RD # 403, Phoenix, AZ 85013
Phone
(602) 406-6262
Enumerated
Mar 28, 2017
Record last updated
Jun 17, 2023
Fax
(602) 406-6261
Medicaid ID
1588196844 WA
Medicare enrollment
Enrolled (PECOS I20230616002708); accepts Medicare assignment
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 240 W Thomas RD # 403

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

  1. Charles Crooks, M.D.Neurocritical Care Physician1992239883
  2. Aditya Kumar, MDNeurocritical Care Physician1861922510
  3. Fiona Lynch, M.D.Neurocritical Care Physician1124476783

Verify Nassim Matin in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 69454
    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 Arizona 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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Bills Medicare through one group practice

  1. Sjhmc Physician ServicesPhoenix, AZ

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

Neurocritical Care Physician providers in Arizona

There are 20 neurocritical care physician records in Arizona.

Other neurocritical care physician records in Arizona

  1. Yazeed AlolayanTucson, AZ1649651894
  2. Brian Appavu, M.D.Phoenix, AZ1396037644
  3. Sean Cleymaet, MDPhoenix, AZ1386173425
  4. Charles Crooks, M.D.Phoenix, AZ1992239883
  5. Ina Dervishi, MDPhoenix, AZ1225522212
  6. Samuel Durojaye, MDPhoenix, AZ1134674872
  7. Matthew Flaherty, MDPhoenix, AZ1265797401
  8. Shayan Ul Haque, MDPhoenix, AZ1275057598
  9. Ruchira Jha, MDPhoenix, AZ1972763498
  10. Joseph Jordan, M.D., PH.D.Tucson, AZ1033261557

Common questions

What is Nassim Matin, M.D.'s NPI number?

Nassim Matin, M.D.'s National Provider Identifier (NPI) is 1588196844, issued on Mar 28, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Nassim Matin, M.D. located?

The NPPES record lists a practice address at 240 W Thomas RD # 403, Phoenix, AZ, 85013. Phone: (602) 406-6262. Providers update this record themselves, so call before visiting.

How can I verify Nassim Matin, M.D.'s license?

NPPES lists Arizona license number 69454, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

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.