NASSIM MATIN M.D.
NPI 1588196844
Psychiatry & Neurology - Neurocritical Care in Phoenix, AZ
About Nassim Matin M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
NASSIM MATIN M.D. (NPI 1588196844) is an individual neurocritical care provider in Phoenix, Arizona, licensed in Arizona (69454) and active in the NPI registry since March 2017. She is enrolled in Medicare PECOS, maintains a secondary practice location in Seattle, and is a graduate of Other (2014).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Nassim Matin M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Nassim Matin reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Phoenix, AZ 85013
- Reassigned Medicare billing, Arizona enrollment
- 773 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Other Providers at the Same Location NPPES 3
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PHOENIX, AZ 85013
PHOENIX, AZ 85013
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Nassim Matin's NPI number?
The NPI number for Nassim Matin is 1588196844. It was assigned to this individual provider in the NPPES registry on March 28, 2017.
Where is Nassim Matin located?
Nassim Matin practices at 240 W Thomas Rd # 403, Phoenix, AZ 85013. The listed phone number is (602) 406-6262.
What is Nassim Matin's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurocritical Care, with taxonomy code 2084A2900X.
Is Nassim Matin enrolled in Medicare?
Yes. Nassim Matin is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Nassim Matin's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nassim Matin reassigns Medicare benefits to Sjhmc Physician Services (Phoenix, AZ). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Nassim Matin's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Nassim Matin accept?
Health plans from Blue Cross Blue Shield of Arizona and Cigna HealthCare of Arizona, Inc list Nassim Matin as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Nassim Matin was last updated on June 17, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Nassim Matin, M.D. · NPI 1588196844
Neurocritical Care physician in Phoenix, Arizona. Individual provider, active in the CMS NPPES registry since March 28, 2017.
## Identity
- **NPI:** 1588196844 (Entity type: Individual)
- **Enumerated:** March 28, 2017
- **Primary specialty:** Psychiatry & Neurology - Neurocritical Care · taxonomy 2084A2900X
- **State license:** 69454 (Arizona)
- **Sole proprietor:** No
## Practice location
- **Address:** 240 W THOMAS RD # 403, Phoenix, AZ 85013-4407
- **Phone:** (602) 406-6262 · **Fax:** (602) 406-6261
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Sjhmc Physician Services (NPI 1326098005, Phoenix, AZ), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2014
## Record status
- **NPPES last updated:** June 17, 2023
- **Other identifiers:** Medicaid 1588196844 (WA)
---
Source: [NPI Profile](https://npiprofile.com/npi/1588196844) · Data from the CMS NPPES public registry.