DR. NARIMAN NASSIRI M.D.
NPI 1174056857
Ophthalmology in Pasadena, CA
About Dr. Nariman Nassiri M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. NARIMAN NASSIRI M.D. (NPI 1174056857) is an individual ophthalmology provider in Pasadena, California, licensed in California (A172729) and active in the NPI registry since April 2017. He is enrolled in Medicare PECOS and is a graduate of Other (2005).
NPPES Registry Identity
Specialties & Licenses
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
Dr. Nariman 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 Reassignments
6Medicare enrollment records show Nariman Nassiri reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Los Angeles, CA 90013
- Reassigned Medicare billing, California enrollment
- 25 clinicians in this Medicare group
Los Angeles, CA 90005
- Reassigned Medicare billing, California enrollment
- 7 clinicians in this Medicare group
Duarte, CA 91010
- Reassigned Medicare billing, California enrollment
- 1,335 clinicians in this Medicare group
Los Angeles, CA 90095
- Reassigned Medicare billing, California enrollment
- 123 clinicians in this Medicare group
Encino, CA 91436
- Reassigned Medicare billing, California enrollment
- 3 clinicians in this Medicare group
Valencia, CA 91355
- Reassigned Medicare billing, California enrollment
- 4 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 9
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 91105 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PASADENA, CA 91105
PASADENA, CA 91105
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 Nariman Nassiri's NPI number?
The NPI number for Nariman Nassiri is 1174056857. It was assigned to this individual provider in the NPPES registry on April 10, 2017.
Where is Nariman Nassiri located?
Nariman Nassiri practices at 625 S Fair Oaks Ave, Pasadena, CA 91105. The listed phone number is (626) 817-4747.
What is Nariman Nassiri's specialty?
The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.
Is Nariman Nassiri enrolled in Medicare?
Yes. Nariman 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 organizations bill Medicare for Nariman Nassiri's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nariman Nassiri reassigns Medicare benefits to 6 organizations: East-West Eye Institute A Medical Corporation (Los Angeles, CA), Affordable Medical Center & Urgent Care Inc (Los Angeles, CA), City Of Hope Medical Foundation (Duarte, CA), Jules Stein Eye Institute Medical Group (Los Angeles, CA), John G Rezapour MD Inc (Encino, CA) and 1 more organization, listed in the Medicare section above. Each 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 Nariman Nassiri's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Nariman Nassiri accept?
Health plans from Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma, Blue Cross and Blue Shield of Texas and Providence Health Plan list Nariman Nassiri 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 Nariman Nassiri was last updated on January 16, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 months 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. Nariman Nassiri, M.D. · NPI 1174056857
Ophthalmology physician in Pasadena, California. Individual provider, active in the CMS NPPES registry since April 10, 2017.
## Identity
- **NPI:** 1174056857 (Entity type: Individual)
- **Enumerated:** April 10, 2017
- **Primary specialty:** Ophthalmology · taxonomy 207W00000X
- **State license:** A172729 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 625 S FAIR OAKS AVE, Pasadena, CA 91105-2613
- **Phone:** (626) 817-4747
## 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:** 6 organizations under Medicare reassignment (form CMS-855R): East-West Eye Institute A Medical Corporation (NPI 1710057245, Los Angeles, CA); Affordable Medical Center & Urgent Care Inc (NPI 1972146843, Los Angeles, CA); City Of Hope Medical Foundation (NPI 1871886366, Duarte, CA); Jules Stein Eye Institute Medical Group (NPI 1326006966, Los Angeles, CA); John G Rezapour MD Inc (NPI 1922282284, Encino, CA); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2005
## Record status
- **NPPES last updated:** January 16, 2025
- **Other identifiers:** Other N260622018714 (MI)
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Source: [NPI Profile](https://npiprofile.com/npi/1174056857) · Data from the CMS NPPES public registry.