MS. ALYA AHMAD DO
NPI 1538796669
Obstetrics & Gynecology in Pasadena, CA
About Ms. Alya Ahmad Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MS. ALYA AHMAD DO (NPI 1538796669) is an individual obstetrics & gynecology provider in Pasadena, California, licensed in California (20A21876) and active in the NPI registry since March 2020. She is enrolled in Medicare PECOS, maintains a secondary practice location in Colton, and is a graduate of Touro Un College Of Osteopathic Medicine, Vallejo (2020).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 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
Ms. Alya Ahmad Do 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 Alya Ahmad reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Los Angeles, CA 90015
- Reassigned Medicare billing, California enrollment
- 2,052 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 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.
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 Alya Ahmad's NPI number?
The NPI number for Alya Ahmad is 1538796669. It was assigned to this individual provider in the NPPES registry on March 26, 2020.
Where is Alya Ahmad located?
Alya Ahmad practices at 50 Bellefontaine St Ste 305, Pasadena, CA 91105. The listed phone number is (626) 440-0632.
What is Alya Ahmad's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Alya Ahmad enrolled in Medicare?
Yes. Alya Ahmad 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 Alya Ahmad's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alya Ahmad reassigns Medicare benefits to Healthcare Partners Affiliates Medical Group (Los Angeles, 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 Alya Ahmad'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 Alya Ahmad was last updated on December 1, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.
# Ms. Alya Ahmad, DO · NPI 1538796669
Obstetrics & Gynecology physician in Pasadena, California. Individual provider, active in the CMS NPPES registry since March 26, 2020.
## Identity
- **NPI:** 1538796669 (Entity type: Individual)
- **Enumerated:** March 26, 2020
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** 20A21876 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 50 BELLEFONTAINE ST STE 305, Pasadena, CA 91105-3132
- **Phone:** (626) 440-0632
## 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:** Healthcare Partners Affiliates Medical Group (NPI 1659312593, Los Angeles, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Touro Un College Of Osteopathic Medicine, Vallejo, class of 2020
## Record status
- **NPPES last updated:** December 1, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1538796669) · Data from the CMS NPPES public registry.