Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mark J Kotapka, MD

Neurological Surgery Physician in Philadelphia, PA · enumerated 2006.

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

National Provider Identifier

1679542799

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Registry record

Entity type Individual (Type 1)

Name Mark J Kotapka

Credential MD

Sex Male

Practice address 5401 Old York Road, Klein Bldg, Ste 501, Philadelphia, PA, 19141

Phone (215) 456-6127

Fax (215) 457-7602

Enumeration date Mar 14, 2006

Last updated in NPPES Dec 7, 2010

Taxonomy & licenses

207T00000X Neurological Surgery Physician Allopathic & Osteopathic Physicians · License PA MD040762E (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
001288060	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

Is NPI 1679542799 active?

Yes, as of the latest NPPES snapshot, NPI 1679542799 is active (record last updated 2010-12-07).

How do I verify Mark Kotapka's NPI record?

Cross-check NPI 1679542799 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-12-07.