Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Robert Gronemeyer, MD

Anesthesiology Physician in Munster, IN · enumerated 2006.

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

National Provider Identifier

1578512042

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Registry record

Entity type Individual (Type 1)

Name Robert Gronemeyer

Credential MD

Sex Male

Practice address 901 Macarthur Blvd, Attn Anesthesia, Munster, IN, 46321

Phone (219) 836-1600

Fax (219) 513-1127

Enumeration date May 10, 2006

Last updated in NPPES May 19, 2010

Taxonomy & licenses

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License 01058576A (IN) 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
200502750A	Medicaid	IN	-
036079113	Medicaid	IL	-
000000347205	Other	IN	ANTHEM BCBS

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

What is the NPI number for Robert Gronemeyer?

The National Provider Identifier (NPI) for Robert Gronemeyer is 1578512042, a Type 1 (individual) record in the CMS NPPES registry.

Where does Robert Gronemeyer practice?

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

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-05-19.