Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mark Richard Janosko, MD

Internal Medicine Physician in Pittsburgh, PA · enumerated 2005.

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

National Provider Identifier

1861493850

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Registry record

Entity type Individual (Type 1)

Name Dr. Mark Richard Janosko

Credential MD

Sex Male

Practice address 4727 Friendship Ave, Suite 200, Pittsburgh, PA, 15224

Phone (412) 235-5810

Fax (412) 235-5890

Enumeration date Aug 2, 2005

Last updated in NPPES Jun 27, 2012

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License MD053566L (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
3810007060	Medicaid	WV	-
0017845780001	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.

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Frequently asked questions

How do I verify Mark Janosko's NPI record?

Cross-check NPI 1861493850 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1861493850 active?

Yes, as of the latest NPPES snapshot, NPI 1861493850 is active (record last updated 2012-06-27).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-06-27.