Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Marshall Greiman, MD

Otolaryngology Physician in Clive, IA · enumerated 2006.

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

National Provider Identifier

1376657957

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Marshall Greiman

Credential MD

Sex Male

Practice address 1601 Nw 114th St, Suite 230, Clive, IA, 50325

Phone (515) 222-7761

Fax (515) 222-7926

Enumeration date Aug 19, 2006

Last updated in NPPES Feb 13, 2024

Taxonomy & licenses

207Y00000X Otolaryngology Physician Allopathic & Osteopathic Physicians · License 25508 (IA) 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
3294827	Medicaid	IA	-

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

Where does Marshall Greiman practice?

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

What is the NPI number for Marshall Greiman?

The National Provider Identifier (NPI) for Marshall Greiman is 1376657957, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Deborah Huber Adult Health Nurse Practitioner · Clive, IA NPI 1801890611 Bernard Feldman Gastroenterology Physician · Clive, IA NPI 1134123789 Harvey Giller Gastroenterology Physician · Clive, IA NPI 1568468981 Digestive and Liver Disease Consultants, P.C. Gastroenterology Physician · Clive, IA NPI 1053312603 Ernesto Vazquez Family Medicine Physician · Clive, IA NPI 1588645899 Catholic Health Initiatives-Iowa Corp Community/Retail Pharmacy · Clive, IA NPI 1619952926 Daniel Gervich Undersea and Hyperbaric Medicine (Preventive Medicine) Physician · Des Moines, IA NPI 1316923311 Steven Berry Critical Care Medicine (Internal Medicine) Physician · Des Moines, IA NPI 1225014228

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-02-13.