AHN RHEUMATOLOGY
NPI 1437472644
Internal Medicine - Rheumatology in Pittsburgh, PA
About Ahn Rheumatology NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
AHN RHEUMATOLOGY (NPI 1437472644) is a healthcare organization registered as a rheumatology in Pittsburgh, Pennsylvania and active in the NPI registry since March 2010. The organization lists Cindy Waltemire, Provider Enrollment Specialist, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Other Identifiers 1
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Ahn Rheumatology is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
2,876Medicare enrollment records show 2,876 clinicians reassign Medicare billing to Ahn Rheumatology, which bills Medicare for the services they deliver. Of these, 175 practice at this address and 1,710 within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 65
Nearest to this location (20)
See all 2,876Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 Allegheny Clinic's NPI number?
The NPI number for Allegheny Clinic is 1437472644. It was assigned to this organization in the NPPES registry on March 3, 2010. The provider is doing business as Ahn Rheumatology.
Where is Allegheny Clinic located?
Allegheny Clinic is located at 4815 Liberty Ave Ste 250, Pittsburgh, PA 15224. The listed phone number is (855) 261-2345.
What is Allegheny Clinic's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.
Is Allegheny Clinic enrolled in Medicare?
Yes. Allegheny Clinic is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Allegheny Clinic?
According to the CMS Revalidation Reassignment List (October 2026 release), 2,876 clinicians in 65 Medicare specialties reassign their Medicare billing to Allegheny Clinic. A 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 the clinician's services. The largest specialties are Nurse Practitioner (466), Certified Registered Nurse Anesthetist (CRNA) (448) and Internal Medicine (203). Of these, 175 practice at this address and 1,710 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Allegheny Clinic was last updated on November 6, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Ahn Rheumatology · NPI 1437472644
Rheumatology organization in Pittsburgh, Pennsylvania. Organization record, active in the CMS NPPES registry since March 3, 2010.
## Identity
- **NPI:** 1437472644 (Entity type: Organization)
- **Enumerated:** March 3, 2010
- **Primary specialty:** Internal Medicine - Rheumatology · taxonomy 207RR0500X
- **Legal business name:** Allegheny Clinic
- **Organization subpart:** No
- **Authorized official:** Cindy Waltemire, PROVIDER ENROLLMENT SPECIALIST
## Practice location
- **Address:** 4815 LIBERTY AVE STE 250, Pittsburgh, PA 15224-2156
- **Phone:** (855) 261-2345 · **Fax:** (412) 605-6669
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 2,876 clinicians in 65 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Nurse Practitioner (466), Certified Registered Nurse Anesthetist (CRNA) (448), Internal Medicine (203); 175 practice at this address and 1,710 within 10 miles; [full list](https://npiprofile.com/npi/1437472644/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** November 6, 2020
- **Other identifiers:** Medicaid 100731714-0363 (PA)
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Source: [NPI Profile](https://npiprofile.com/npi/1437472644) · Data from the CMS NPPES public registry.