Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum
Rheumatology Associates Ltd
Rheumatology Physician in East Norriton, PA · enumerated 2005 · authorized official Andrew Mermelstein, Secretary.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1376536177
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Registry record
Taxonomy & classification
Authorized official
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 066 | Other | PA | CIGNA |
| 0048721000 | Other | - | KEYSTONE |
| 110042013 | Other | - | UNITED HEALTHCARE |
| 2584 | Other | PA | AETNA |
| 195912 | Other | PA | BLUE SHIELD |
| CF6287 | Other | PA | RAILROAD MEDICARE |
| 0048721000 | Other | PA | PERSONAL CHOICE |
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
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Providers at this address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-08-09.