Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Peter Barkalow Holt, MD

Q: What is the NPI number for Peter Holt?

The National Provider Identifier (NPI) for Peter Holt is 1104907450, a Type 1 (individual) record in the CMS NPPES registry.

Internal Medicine Physician in Longmont, CO · enumerated 2006.

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

National Provider Identifier

1104907450

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Registry record

Entity type Individual (Type 1)

Name Peter Barkalow Holt

Credential MD

Sex Male

Practice address 2030 W Mountain View Avenue, Suite 400, Longmont, CO, 80501

Phone (303) 776-1532

Fax (303) 776-3109

Enumeration date Oct 17, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 19986 (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
04005930	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 is the NPI number for Peter Holt?

The National Provider Identifier (NPI) for Peter Holt is 1104907450, a Type 1 (individual) record in the CMS NPPES registry.

Where does Peter Holt practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.