Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Michael Greas

Anatomic Pathology Physician in Loma Linda, CA · enumerated 2016.

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

National Provider Identifier

1982059168

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Registry record

Entity type Individual (Type 1)

Name Michael Greas

Sex Male

Practice address 11234 Anderson St, Loma Linda University Pathology Residency, Loma Linda, CA, 92354

Phone (909) 558-4094

Enumeration date Apr 26, 2016

Last updated in NPPES Apr 30, 2024

Taxonomy & licenses

207ZH0000X Hematology (Pathology) Physician Allopathic & Osteopathic Physicians · License A157365 (CA) Secondary

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary

207ZP0101X Anatomic Pathology Physician Allopathic & Osteopathic Physicians · License A157365 (CA) Primary

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 Michael Greas?

The National Provider Identifier (NPI) for Michael Greas is 1982059168, a Type 1 (individual) record in the CMS NPPES registry.

Where does Michael Greas practice?

The practice location on file with NPPES is in Loma Linda, CA. 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 2024-04-30.