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Alison Craib Rentz, MD

Neonatal-Perinatal Medicine Physician in Billings, MT · enumerated 2005.

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

National Provider Identifier

1356332621

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Registry record

Entity type Individual (Type 1)
Name Alison Craib Rentz
Credential MD
Sex Female
Practice address 1233 N 30th St, Billings, MT, 59101
Phone (406) 237-7076
Fax (406) 237-7810
Enumeration date Nov 4, 2005
Last updated in NPPES Jul 19, 2016

Taxonomy & licenses

174400000X Specialist Other Service Providers Secondary
2080N0001X Neonatal-Perinatal Medicine Physician Allopathic & Osteopathic Physicians · License 11282 (MT) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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

Where does Alison Rentz practice?
The practice location on file with NPPES is in Billings, MT. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Alison Rentz?
The National Provider Identifier (NPI) for Alison Rentz is 1356332621, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-07-19.