Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Kanao Otsu, M.D.

Allergy & Immunology Physician in Denver, CO · enumerated 2007.

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

National Provider Identifier

1881748226

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Registry record

Entity type Individual (Type 1)

Name Kanao Otsu

Credential M.D.

Sex Female

Practice address 1400 Jackson St, Denver, CO, 80206

Phone (303) 388-4461

Fax (303) 270-2206

Enumeration date Jan 23, 2007

Last updated in NPPES Feb 23, 2021

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 221184 (MA) Secondary

2080P0201X Pediatric Allergy/Immunology Physician Allopathic & Osteopathic Physicians · License 51382 (CO) Secondary

207K00000X Allergy & Immunology Physician Allopathic & Osteopathic Physicians · License 51382 (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
21927863	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.

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Frequently asked questions

How do I verify Kanao Otsu's NPI record?

Cross-check NPI 1881748226 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1881748226 active?

Yes, as of the latest NPPES snapshot, NPI 1881748226 is active (record last updated 2021-02-23).

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Robert Lapidus Pulmonary Disease Physician · Denver, CO NPI 1760485023 William Lee Hematology & Oncology Physician · Denver, CO NPI 1639173693 James Good Pulmonary Disease Physician · Denver, CO NPI 1679577126 David Griffith Infectious Disease Physician · Denver, CO NPI 1245229301 Sandhya Rai-Sherpa Internal Medicine Physician · Denver, CO NPI 1326038944 Marc Cohen Rheumatology Physician · Denver, CO NPI 1053301739 Evan Stepp Pulmonary Disease Physician · Denver, CO NPI 1932199536 Stuart Kassan Rheumatology Physician · Denver, CO NPI 1093706475

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-02-23.