Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Michael E Peetz, MD

Surgery Physician in Greeley, CO · enumerated 2006.

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

National Provider Identifier

1255319927

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Registry record

Entity type Individual (Type 1)

Name Dr. Michael E Peetz

Credential MD

Sex Male

Practice address 1900 16th St, Greeley, CO, 80631

Phone (970) 313-2426

Fax (970) 350-2452

Enumeration date Jan 4, 2006

Last updated in NPPES Feb 15, 2012

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 24817 (CO) 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
01248178	Medicaid	CO	-
P00944760	Other	CO	MEDICARE RAILROAD CARRIER PTAN

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 Michael Peetz practice?

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

What is the NPI number for Michael Peetz?

The National Provider Identifier (NPI) for Michael Peetz is 1255319927, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-02-15.