DR. RAFAY AHAD HASEEB DO, MPH
NPI 1902546757
Hospitalist in Fountain Valley, CA
About Dr. Rafay Ahad Haseeb Do, Mph NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. RAFAY AHAD HASEEB DO, MPH (NPI 1902546757) is an individual hospitalist provider in Fountain Valley, California, licensed in California (21979) and active in the NPI registry since March 2022. He is enrolled in Medicare PECOS, maintains 3 additional practice locations, and is a graduate of Other (2022).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 3
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. Rafay Ahad Haseeb Do, Mph 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 Rafay Haseeb reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Orange, CA 92868
- Reassigned Medicare billing, California enrollment
- 250 clinicians in this Medicare group
Eastvale, CA 92880
- Reassigned Medicare billing, California enrollment
- 349 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 92708 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 7
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
FOUNTAIN VALLEY, CA 92708
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 Rafay Haseeb's NPI number?
The NPI number for Rafay Haseeb is 1902546757. It was assigned to this individual provider in the NPPES registry on March 30, 2022.
Where is Rafay Haseeb located?
Rafay Haseeb practices at 18785 Brookhurst St Ste 200, Fountain Valley, CA 92708. The listed phone number is (714) 378-5330.
What is Rafay Haseeb's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Rafay Haseeb enrolled in Medicare?
Yes. Rafay Haseeb 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 Rafay Haseeb's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Rafay Haseeb reassigns Medicare benefits to 2 organizations: The Regents Of The University Of California-Irvine (Orange, CA) and Riverside Medical Clinic, Inc (Eastvale, 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 Rafay Haseeb'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 Rafay Haseeb was last updated on August 12, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Dr. Rafay Ahad Haseeb, DO, MPH · NPI 1902546757
Hospitalist physician in Fountain Valley, California. Individual provider, active in the CMS NPPES registry since March 30, 2022.
## Identity
- **NPI:** 1902546757 (Entity type: Individual)
- **Enumerated:** March 30, 2022
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** 21979 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 18785 BROOKHURST ST STE 200, Fountain Valley, CA 92708-7300
- **Phone:** (714) 378-5330 · **Fax:** (657) 276-4743
## 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): The Regents Of The University Of California-Irvine (NPI 1154479723, Orange, CA); Riverside Medical Clinic, Inc (NPI 1972845535, Eastvale, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2022
## Record status
- **NPPES last updated:** August 12, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1902546757) · Data from the CMS NPPES public registry.