Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Catriona Harrop, MD

Internal Medicine Physician in Philadelphia, PA · enumerated 2005.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1174500680

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Registry record

Entity type Individual (Type 1)

Name Dr. Catriona Harrop

Credential MD

Sex Female

Practice address 111 S 11th St, Philadelphia, PA, 19107

Phone (215) 955-7000

Fax (215) 503-7007

Enumeration date Dec 27, 2005

Last updated in NPPES Apr 14, 2016

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 039741 (CT) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 250802 (MA) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License MD452878 (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
001397414	Medicaid	CT	-
102968250 0003	Medicaid	PA	-

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Catriona Harrop?

Catriona Harrop is registered in NPPES with the primary taxonomy of Internal Medicine 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-04-14.