DR. SAIMA FIRDOOS MD
NPI 1740621101
Internal Medicine in Napa, CA
About Dr. Saima Firdoos Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. SAIMA FIRDOOS MD (NPI 1740621101) is an individual internal medicine provider in Napa, California, licensed in California (A171938) and active in the NPI registry since July 2013. She is enrolled in Medicare PECOS and is a graduate of Other (2003).
NPPES Registry Identity
Specialties & Licenses 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. Saima Firdoos 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 Reassignments
3Medicare enrollment records show Saima Firdoos reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Fairfield, CA 94534
- Reassigned Medicare billing, California enrollment
- 3,056 clinicians in this Medicare group
San Rafael, CA 94901
- Reassigned Medicare billing, California enrollment
- 20 clinicians in this Medicare group
Modesto, CA 95354
- Reassigned Medicare billing, California enrollment
- 180 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 2
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 94558 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.
Reported Quality Measures
Referred Medical Equipment & Supplies CMS DME claims
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 5
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Saima Firdoos's NPI number?
The NPI number for Saima Firdoos is 1740621101. It was assigned to this individual provider in the NPPES registry on July 15, 2013.
Where is Saima Firdoos located?
Saima Firdoos practices at 3275 Villa Ln, Napa, CA 94558. The listed phone number is (707) 257-0931.
What is Saima Firdoos's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Saima Firdoos enrolled in Medicare?
Yes. Saima Firdoos 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 Saima Firdoos's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Saima Firdoos reassigns Medicare benefits to 3 organizations: Sutter Valley Medical Foundation (Fairfield, CA), Ritter Center (San Rafael, CA) and American Specialty Physicians Group Inc (Modesto, CA). 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 Saima Firdoos'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 Saima Firdoos was last updated on November 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 days 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. Saima Firdoos, MD · NPI 1740621101
Internal Medicine physician in Napa, California. Individual provider, active in the CMS NPPES registry since July 15, 2013.
## Identity
- **NPI:** 1740621101 (Entity type: Individual)
- **Enumerated:** July 15, 2013
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** A171938 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 3275 VILLA LN, Napa, CA 94558-3016
- **Phone:** (707) 257-0931
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Sutter Valley Medical Foundation (NPI 1184859894, Fairfield, CA); Ritter Center (NPI 1417370032, San Rafael, CA); American Specialty Physicians Group Inc (NPI 1164363024, Modesto, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2003
## Record status
- **NPPES last updated:** November 4, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1740621101) · Data from the CMS NPPES public registry.