Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Melissa Larson, MD

Anesthesiology Physician in Denver, CO · enumerated 2005 · practices at Children'S Anesthesia, P.C..

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

National Provider Identifier

1477530566

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Registry record

Entity type Individual (Type 1)

Name Melissa Larson

Credential MD

Sex Female

Practice address 455 Sherman St, Ste 510, Denver, CO, 80203

Phone (303) 377-6825

Fax (303) 780-0787

Enumeration date Dec 29, 2005

Last updated in NPPES Apr 18, 2013

Taxonomy & licenses

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License 36840 (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
114221600	Medicaid	WY	-
3506685	Medicaid	MT	-
100335770A	Medicaid	KS	-
84113438513	Medicaid	NE	-
8648603	Medicaid	NJ	-
XPY204583	Medicaid	CA	-
27807070	Medicaid	CO	-
Z5206	Medicaid	NM	-

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 Melissa Larson?

Melissa Larson is registered in NPPES with the primary taxonomy of Anesthesiology 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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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-04-18.