MRS. RUBY SALIHA ALI M.D.
NPI 1093990426
Psychiatry & Neurology - Neurology in Fairfield, CA
About Mrs. Ruby Saliha Ali M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MRS. RUBY SALIHA ALI M.D. (NPI 1093990426) is an individual neurology provider in Fairfield, California, licensed in California (A99849) and active in the NPI registry since January 2008. She is enrolled in Medicare PECOS and is a graduate of Other (2005).
NPPES Registry Identity
Specialties & Licenses
Other Names 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
Mrs. Ruby Saliha Ali 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
2Medicare enrollment records show Ruby Ali reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Fairfield, CA 94533
- Reassigned Medicare billing, California enrollment
- Medicare enrollment name: Northbay Physicians Surgery Center, LLC
- 516 clinicians in this Medicare group
Fairfield, CA 94534
- Reassigned Medicare billing, California enrollment
- 225 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 11
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 94533 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
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 Ruby Ali's NPI number?
The NPI number for Ruby Ali is 1093990426. It was assigned to this individual provider in the NPPES registry on January 3, 2008. The provider is also known as Ruby Saliha Attari.
Where is Ruby Ali located?
Ruby Ali practices at 1860 Pennsylvania Avenue Suite 210, Fairfield, CA 94533. The listed phone number is (707) 646-4380.
What is Ruby Ali's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.
Is Ruby Ali enrolled in Medicare?
Yes. Ruby Ali 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 Ruby Ali's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ruby Ali reassigns Medicare benefits to 2 organizations: Northbay Healthcare Group (Fairfield, CA) and Northbay Health Medical Foundation (Fairfield, 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 Ruby Ali'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 Ruby Ali was last updated on January 31, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# Mrs. Ruby Saliha Ali, M.D. · NPI 1093990426
Neurology physician in Fairfield, California. Individual provider, active in the CMS NPPES registry since January 3, 2008.
## Identity
- **NPI:** 1093990426 (Entity type: Individual)
- **Enumerated:** January 3, 2008
- **Primary specialty:** Psychiatry & Neurology - Neurology · taxonomy 2084N0400X
- **State license:** A99849 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 1860 PENNSYLVANIA AVENUE, SUITE 210, Fairfield, CA 94533-3550
- **Phone:** (707) 646-4380
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Northbay Healthcare Group (NPI 1780736736, Fairfield, CA); Northbay Health Medical Foundation (NPI 1760283527, Fairfield, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2005
## Record status
- **NPPES last updated:** January 31, 2019
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Source: [NPI Profile](https://npiprofile.com/npi/1093990426) · Data from the CMS NPPES public registry.