NAIAB NASER CHOWDHURY MD
NPI 1558985234
Family Medicine in Vacaville, CA
About Naiab Naser Chowdhury Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
NAIAB NASER CHOWDHURY MD (NPI 1558985234) is an individual family medicine provider in Vacaville, California, licensed in California (187917) and active in the NPI registry since May 2020. She is enrolled in Medicare PECOS and is a graduate of Other (2013).
NPPES Registry Identity
Specialties & Licenses
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
Naiab Naser Chowdhury 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 Naiab Naser Chowdhury reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Vallejo, CA 94589
- Reassigned Medicare billing, California enrollment
- 20,078 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 95688 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 20
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 Naiab Naser Chowdhury's NPI number?
The NPI number for Naiab Naser Chowdhury is 1558985234. It was assigned to this individual provider in the NPPES registry on May 29, 2020.
Where is Naiab Naser Chowdhury located?
Naiab Naser Chowdhury practices at 1 Quality Dr, Vacaville, CA 95688. The listed phone number is (707) 624-4000.
What is Naiab Naser Chowdhury's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Naiab Naser Chowdhury enrolled in Medicare?
Yes. Naiab Naser Chowdhury 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 Naiab Naser Chowdhury's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Naiab Naser Chowdhury reassigns Medicare benefits to Permanente Medical Group Inc (Vallejo, 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 Naiab Naser Chowdhury'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 Naiab Naser Chowdhury was last updated on August 3, 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.
# Naiab Naser Chowdhury, MD · NPI 1558985234
Family Medicine physician in Vacaville, California. Individual provider, active in the CMS NPPES registry since May 29, 2020.
## Identity
- **NPI:** 1558985234 (Entity type: Individual)
- **Enumerated:** May 29, 2020
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** 187917 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 1 QUALITY DR, Vacaville, CA 95688-9494
- **Phone:** (707) 624-4000
## 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:** Permanente Medical Group Inc (NPI 1336222397, Vallejo, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2013
## Record status
- **NPPES last updated:** August 3, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1558985234) · Data from the CMS NPPES public registry.