Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

David Gregory Mayernik, M.D.

Hematology & Oncology Physician in Monroeville, PA · enumerated 2006.

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

National Provider Identifier

1083671846

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Registry record

Entity type Individual (Type 1)

Name David Gregory Mayernik

Credential M.D.

Sex Male

Practice address 2626 Haymaker Rd Fl 2, Monroeville, PA, 15146

Phone (412) 373-4411

Fax (412) 373-4677

Enumeration date Apr 27, 2006

Last updated in NPPES Jul 5, 2026

Taxonomy & licenses

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License 75267 (AZ) Secondary

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License MD020910E (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
0009785120010	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 is the NPI number for David Mayernik?

The National Provider Identifier (NPI) for David Mayernik is 1083671846, a Type 1 (individual) record in the CMS NPPES registry.

Where does David Mayernik practice?

The practice location on file with NPPES is in Monroeville, PA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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