Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Catherine M Quirk, MD
Dermatology Physician in Radnor, PA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1770595704
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Registry record
Entity type Individual (Type 1)
Name Dr. Catherine M Quirk
Credential MD
Sex Female
Practice address 250 King of Prussia Road, Radnor, PA, 19087
Phone (610) 902-2000
Enumeration date Aug 11, 2006
Last updated in NPPES Nov 28, 2011
Taxonomy & licenses
207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License MD436603 (PA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 709004108 | Other | RI | GROUP MEDICARE |
| 9025834 | Medicaid | RI | - |
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
What specialty is Catherine Quirk?
Catherine Quirk is registered in NPPES with the primary taxonomy of Dermatology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
Other providers at this practice address
Browse all → Steven Feinstein Internal Medicine Physician · Radnor, PA NPI 1104815356 Allison Oler Internal Medicine Physician · Radnor, PA NPI 1710934740 Carol Fleischman Internal Medicine Physician · Radnor, PA NPI 1902846942 Preethi Thomas Rheumatology Physician · Radnor, PA NPI 1811937857 Susan Brozena Advanced Heart Failure and Transplant Cardiology Physician · Radnor, PA NPI 1881621787 Michelle Vichnin Obstetrics & Gynecology Physician · Radnor, PA NPI 1063440519 Edward Carter Diagnostic Radiology Physician · St. David, PA NPI 1952413932 Erika Tapino Endocrinology, Diabetes & Metabolism Physician · Radnor, PA NPI 1295811958
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-11-28.