Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Michael Anthony Gutierrez, M.D.

Internal Medicine Physician in Denver, CO · enumerated 2006.

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

National Provider Identifier

1013075704

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Registry record

Entity type Individual (Type 1)

Name Dr. Michael Anthony Gutierrez

Credential M.D.

Sex Male

Practice address Denver, CO, 80236

Phone (303) 866-7054

Fax (303) 866-7197

Enumeration date Dec 5, 2006

Last updated in NPPES Nov 14, 2007

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 31081 (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
01310812	Medicaid	CO	-

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 specialty is Michael Gutierrez?

Michael Gutierrez is registered in NPPES with the primary taxonomy of Internal Medicine Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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James Robinett Psychiatry Physician · Denver, CO NPI 1578529491 Robert Hernandez Child & Adolescent Psychiatry Physician · Denver, CO NPI 1356409064 David Graybill Psychiatry Physician · Denver, CO NPI 1356409031 Yvonne Reid Psychiatry Physician · Denver, CO NPI 1902964661 Colorado Mental Health Institute Fort Logan Institutional Pharmacy · Denver, CO NPI 1689733479 The Mountain Star Center Mental Illness Community Based Residential Treatment Facility · Denver, CO NPI 1013040385 Colorado Mental Health Institute Fort Logan Psychiatric Hospital Unit · Denver, CO NPI 1235262593 State of Colorado Psychiatric Hospital · Denver, CO NPI 1548393937

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-11-14.