DR. IRMEEN MUSHARRAF ASHRAF MD
NPI 1629081005
Hospitalist in Antioch, CA
About Dr. Irmeen Musharraf Ashraf Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. IRMEEN MUSHARRAF ASHRAF MD (NPI 1629081005) is an individual hospitalist provider in Antioch, California, licensed in California (A78367) and active in the NPI registry since August 2006. She is enrolled in Medicare PECOS.
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 (PECOS)
Dr. Irmeen Musharraf Ashraf Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
5Medicare enrollment records show Irmeen Ashraf reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Orinda, CA 94563
- Reassigned Medicare billing, California enrollment
- 4,479 clinicians in this Medicare group
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 5,645 clinicians in this Medicare group
San Francisco, CA 94122
- Reassigned Medicare billing, California enrollment
- 5,544 clinicians in this Medicare group
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 1,159 clinicians in this Medicare group
Modesto, CA 95350
- Reassigned Medicare billing, California enrollment
- Medicare enrollment name: Valley Childrens Medical Group
- 387 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 94509 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 2
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 Irmeen Ashraf's NPI number?
The NPI number for Irmeen Ashraf is 1629081005. It was assigned to this individual provider in the NPPES registry on August 15, 2006.
Where is Irmeen Ashraf located?
Irmeen Ashraf practices at 3901 Lone Tree Way Ste 211, Antioch, CA 94509. The listed phone number is (925) 756-1192.
What is Irmeen Ashraf's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Irmeen Ashraf enrolled in Medicare?
Yes. Irmeen Ashraf is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Irmeen Ashraf's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Irmeen Ashraf reassigns Medicare benefits to 5 organizations: Sutter Bay Medical Foundation (Orinda, CA), University Of California San Francisco (San Francisco, CA), Ucsf Medical Group Business Services (San Francisco, CA), Ucsf Pediatrics Associates (San Francisco, CA) and Valley Children's Medical Group (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 Irmeen Ashraf'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 Irmeen Ashraf was last updated on September 27, 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.
# Dr. Irmeen Musharraf Ashraf, MD · NPI 1629081005
Hospitalist physician in Antioch, California. Individual provider, active in the CMS NPPES registry since August 15, 2006.
## Identity
- **NPI:** 1629081005 (Entity type: Individual)
- **Enumerated:** August 15, 2006
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** A78367 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 3901 LONE TREE WAY STE 211, Antioch, CA 94509-6200
- **Phone:** (925) 756-1192 · **Fax:** (925) 756-1869
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 5 organizations under Medicare reassignment (form CMS-855R): Sutter Bay Medical Foundation (NPI 1366898538, Orinda, CA); University Of California San Francisco (NPI 1346329380, San Francisco, CA); Ucsf Medical Group Business Services (NPI 1477624104, San Francisco, CA); Ucsf Pediatrics Associates (NPI 1376614016, San Francisco, CA); Valley Children's Medical Group (NPI 1437555265, Modesto, CA) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** September 27, 2019
- **Other identifiers:** Other A78367 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1629081005) · Data from the CMS NPPES public registry.