JAFFAR ABBAS TREMAZI MD
NPI 1649248782
Internal Medicine - Rheumatology in Pomona, CA
About Jaffar Abbas Tremazi Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JAFFAR ABBAS TREMAZI MD (NPI 1649248782) is an individual rheumatology provider in Pomona, California, licensed in California (A82895) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1998).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 1
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
Jaffar Abbas Tremazi Md 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 Jaffar Tremazi reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Pomona, CA 91767
- Reassigned Medicare billing, California enrollment
- Also billed through NPI 1750634325 (California)
- 114 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 7
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 91767 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 9
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
POMONA, CA 91767
POMONA, CA 91767
POMONA, CA 91767
POMONA, CA 91767
POMONA, CA 91767
POMONA, CA 91767
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 Jaffar Tremazi's NPI number?
The NPI number for Jaffar Tremazi is 1649248782. It was assigned to this individual provider in the NPPES registry on March 14, 2006.
Where is Jaffar Tremazi located?
Jaffar Tremazi practices at 1904 N Orange Grove Ave, Pomona, CA 91767. The listed phone number is (909) 469-1823.
What is Jaffar Tremazi's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.
Is Jaffar Tremazi enrolled in Medicare?
Yes. Jaffar Tremazi 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 Jaffar Tremazi's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jaffar Tremazi reassigns Medicare benefits to Chaparral Medical Group Inc (Pomona, CA). 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 Jaffar Tremazi'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 Jaffar Tremazi was last updated on February 20, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Jaffar Abbas Tremazi, MD · NPI 1649248782
Rheumatology physician in Pomona, California. Individual provider, active in the CMS NPPES registry since March 14, 2006.
## Identity
- **NPI:** 1649248782 (Entity type: Individual)
- **Enumerated:** March 14, 2006
- **Primary specialty:** Internal Medicine - Rheumatology · taxonomy 207RR0500X
- **State license:** A82895 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 1904 N ORANGE GROVE AVE, Pomona, CA 91767-3008
- **Phone:** (909) 469-1823 · **Fax:** (909) 469-1827
## 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:** Chaparral Medical Group Inc (NPI 1114989241, Pomona, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1998
## Record status
- **NPPES last updated:** February 20, 2020
- **Other identifiers:** Medicaid 00A828950 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1649248782) · Data from the CMS NPPES public registry.