Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

William Kevin Kelly, DO

Medical Oncology Physician in Philadelphia, PA · enumerated 2005.

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

National Provider Identifier

1013905512

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Registry record

Entity type Individual (Type 1)

Name William Kevin Kelly

Credential DO

Sex Male

Practice address 925 Chestnut St, Suite 320a, Philadelphia, PA, 19107

Phone (215) 995-8874

Fax (215) 955-2340

Enumeration date Oct 10, 2005

Last updated in NPPES May 31, 2011

Taxonomy & licenses

207RX0202X Medical Oncology Physician Allopathic & Osteopathic Physicians · License 043422 (CT) Secondary

207RX0202X Medical Oncology Physician Allopathic & Osteopathic Physicians · License OS006196L (PA) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier	Type	State	Issuer
102474035	Medicaid	PA	-
001434224	Medicaid	CT	-
0232017	Medicaid	NJ	-

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.

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Frequently asked questions

What specialty is William Kelly?

William Kelly is registered in NPPES with the primary taxonomy of Medical Oncology 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

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Stephen Seftchick Physical Therapy Assistant · Philadelphia, PA NPI 1902804362 Stephanie Sellecchia Physical Therapist · Philadelphia, PA NPI 1760480933 Joseph Schneider Physical Therapist · Phila, PA NPI 1699773812 Maysa Abu-Khalaf Medical Oncology Physician · Philadelphia, PA NPI 1194713495 Michael Nolan Physical Therapist · Philadelphia, PA NPI 1760470991 Thomas Klumpp Hematology & Oncology Physician · Philadelphia, PA NPI 1194713271 John Worley Athletic Trainer · Philadelphia, PA NPI 1124016043 Bijoyesh Mookerjee Hematology & Oncology Physician · Philadelphia, PA NPI 1407836083

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-05-31.