DR. ROSTAM NASSIRI M.D.
NPI 1366494288
Family Medicine in Silver Spring, MD
About Dr. Rostam Nassiri M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ROSTAM NASSIRI M.D. (NPI 1366494288) is an individual family medicine provider in Silver Spring, Maryland, licensed in Maryland (D0061989) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS and is a graduate of Other (2001).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
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
Dr. Rostam Nassiri 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 Rostam Nassiri reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Silver Spring, MD 20904
- Reassigned Medicare billing, District of Columbia enrollment
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 6
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 20904 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 10
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SILVER SPRING, MD 20904
SILVER SPRING, MD 20904
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 Rostam Nassiri's NPI number?
The NPI number for Rostam Nassiri is 1366494288. It was assigned to this individual provider in the NPPES registry on May 17, 2006.
Where is Rostam Nassiri located?
Rostam Nassiri practices at 13823 Outlet Dr, Silver Spring, MD 20904. The listed phone number is (301) 890-8000.
What is Rostam Nassiri's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Rostam Nassiri enrolled in Medicare?
Yes. Rostam Nassiri 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 Rostam Nassiri's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Rostam Nassiri reassigns Medicare benefits to Briggs Chaney Walk In Clinic, LLC (Silver Spring, MD). 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 Rostam Nassiri's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Rostam Nassiri was last updated on May 12, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.
# Dr. Rostam Nassiri, M.D. · NPI 1366494288
Family Medicine physician in Silver Spring, Maryland. Individual provider, active in the CMS NPPES registry since May 17, 2006.
## Identity
- **NPI:** 1366494288 (Entity type: Individual)
- **Enumerated:** May 17, 2006
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** D0061989 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 13823 OUTLET DR, Silver Spring, MD 20904-4971
- **Phone:** (301) 890-8000 · **Fax:** (301) 890-1485
## 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:** Briggs Chaney Walk In Clinic, LLC (NPI 1700042025, Silver Spring, MD), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2001
## Record status
- **NPPES last updated:** May 12, 2014
- **Other identifiers:** Medicare UPIN Y50740 (MD); Medicare PIN G02255R01 (DC)
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Source: [NPI Profile](https://npiprofile.com/npi/1366494288) · Data from the CMS NPPES public registry.