Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mary Coffey Greist, MD

Q: What is the NPI number for Mary Greist?

The National Provider Identifier (NPI) for Mary Greist is 1306933858, a Type 1 (individual) record in the CMS NPPES registry.

Dermatopathology Physician in Indianapolis, IN · enumerated 2006 · practices at Sara P. Viernes DDS PC.

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

National Provider Identifier

1306933858

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Registry record

Entity type Individual (Type 1)

Name Dr. Mary Coffey Greist

Credential MD

Sex Female

Practice address 6820 Parkdale Place, Suite 211, Indianapolis, IN, 46254

Phone (317) 329-7050

Fax (317) 328-6809

Enumeration date Oct 6, 2006

Last updated in NPPES May 26, 2010

Taxonomy & licenses

207ND0900X Dermatopathology Physician Allopathic & Osteopathic Physicians · License 01024873 (IN) Primary

207NI0002X Clinical & Laboratory Dermatological Immunology Physician Allopathic & Osteopathic Physicians · License 01024873 (IN) Secondary

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
000000085208	Other	IN	ANTHEM
100060500	Medicaid	IN	-

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 Mary Greist?

The National Provider Identifier (NPI) for Mary Greist is 1306933858, a Type 1 (individual) record in the CMS NPPES registry.

Where does Mary Greist practice?

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

Other providers at this practice address

Browse all →

John Delaney Psychiatry Physician · Indianapolis, IN NPI 1205883295 Edlyn Jones Psychologist · Indianapolis, IN NPI 1407890445 Wendy Wilson Clinical & Laboratory Dermatological Immunology Physician · Indianapolis, IN NPI 1427145986 Ingrida Ozols Dermatopathology Physician · Indianapolis, IN NPI 1710068796 Sara P. Viernes DDS PC Dentist · Indianapolis, IN NPI 1356509731

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-05-26.