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RHEUMATOLOGY ASSOCIATES LTD
NPI 1376536177
Internal Medicine - Rheumatology in East Norriton, PA

Active since August 26, 2005
170 W. GERMANTOWN PIKE, NORRITON OFFICE CENTER, SUITE C-2, EAST NORRITON, PA 19401(610) 277-2750(610) 277-7949 Get Directions Write a Review

NPPES record last updated: August 9, 2011. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Rheumatology Associates Ltd NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

RHEUMATOLOGY ASSOCIATES LTD (NPI 1376536177) is a healthcare organization registered as a rheumatology in East Norriton, Pennsylvania and active in the NPI registry since August 2005. The organization lists Andrew L Mermelstein, Secretary, as its authorized official.

NPPES Registry Identity

NPI1376536177
Entity TypeOrganization
Primary Taxonomy207RR0500X
Legal Business NameRHEUMATOLOGY ASSOCIATES LTD
Location Address170 W. GERMANTOWN PIKE, NORRITON OFFICE CENTER, SUITE C-2East Norriton, PA 19401-1389
Mailing Address170 W. Germantown Pike, Norriton Office Center, Suite C-2East Norriton, PA 19401-1389 · (610) 277-2750 · Fax (610) 277-7949
Phone(610) 277-2750
Fax(610) 277-7949
Organization SubpartNo
Authorized OfficialAndrew L MermelsteinSecretary · (610) 277-2750
Enumeration DateAugust 26, 2005
Last NPPES UpdateAugust 9, 2011
✔ NPI 1376536177 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians
Taxonomy Code207RR0500X
Definition
An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.
170 W. GERMANTOWN PIKE, NORRITON OFFICE CENTER, East Norriton, PA 19401
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Other Identifiers 8

Other110042013United Healthcare
Other0048721000Keystone
OtherCF6287PA · Railroad Medicare
Other195912PA · Blue Shield
Other2584PA · Aetna
Other066PA · Cigna
Other0048721000PA · Personal Choice
Medicare PIN195912PA

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Rheumatology Associates Ltd is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

5

Medicare enrollment records show 5 clinicians reassign Medicare billing to Rheumatology Associates Ltd, which bills Medicare for the services they deliver. Of these, 5 practice within 10 miles. They are listed nearest first.

Clinicians, nearest first (5)

Arati Karhadkar, M.D.
Rheumatology
NPI 1982890448
170 W GERMANTOWN PIKE SUITE C-2
Norristown, PA 19401
(610) 277-2750
✔ PECOS✔ Accepts Medicare1.1 mi
Andrew Mermelstein, MD
Rheumatology
NPI 1215920335
170 W. GERMANTOWN PIKE SUITE C-2
East Norriton, PA 19401
(610) 277-2750
✔ PECOS✔ Accepts Medicare1.1 mi
Kerry Stone, MD
Rheumatology
NPI 1003865353
170 W. GERMANTOWN PIKE NORRITON OFFICE CENTER, SUITE C-2
East Norriton, PA 19401
(610) 277-2750
✔ PECOS✔ Accepts Medicare1.1 mi
Kate Chernow, D.O.
Rheumatology
NPI 1174918551
170 W GERMANTOWN PIKE STE C2
Norristown, PA 19401
(610) 277-2750
✔ PECOS✔ Accepts Medicare1.1 mi
Donna Trigone, CRNP
Nurse Practitioner
NPI 1831723956
170 W GERMANTOWN PIKE STE C2
East Norriton, PA 19401
(610) 277-2750
✔ PECOS✔ Accepts Medicare1.1 mi

Source: 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 Rheumatology Associates Ltd's NPI number?

The NPI number for Rheumatology Associates Ltd is 1376536177. It was assigned to this organization in the NPPES registry on August 26, 2005.

Where is Rheumatology Associates Ltd located?

Rheumatology Associates Ltd is located at 170 W. Germantown Pike, Norriton Office Center Suite C-2, East Norriton, PA 19401. The listed phone number is (610) 277-2750.

What is Rheumatology Associates Ltd's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

Is Rheumatology Associates Ltd enrolled in Medicare?

Yes. Rheumatology Associates Ltd is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Rheumatology Associates Ltd?

According to the CMS Revalidation Reassignment List (October 2026 release), 5 clinicians in 2 Medicare specialties reassign their Medicare billing to Rheumatology Associates Ltd. 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 Rheumatology (4) and Nurse Practitioner (1). Of these, 5 practice 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 Rheumatology Associates Ltd was last updated on August 9, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.