Kanao Otsu, M.D.
Allergy & Immunology Physician · Denver, CO
Kanao Otsu, M.D. is an allergy & immunology physician with a practice address in Denver, Colorado, and NPI 1881748226, issued on Jan 23, 2007. Check the license (Colorado 51382, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Kanao Otsu
- Credential
- M.D.
- Primary taxonomy
- Allergy & Immunology Physician 207K00000X
- License numbers
- 51382 CO
221184 MA
Self-reported in NPPES; status is on the state search - Practice location
- 1400 Jackson St, Denver, CO 80206
- Phone
- (303) 388-4461
- Enumerated
- Jan 23, 2007
- Record last updated
- Feb 23, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (303) 270-2206
- Medicaid ID
- 21927863 CO
- Medicare enrollment
- Enrolled (PECOS I20140902000991); accepts Medicare assignment
- Medical or professional school
- Columbia University College Of Physicians And Surgeons, 2003
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest allergy & immunology physician records → All 102 in Colorado → Look up another NPI →
Also registered at 1400 Jackson St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ronya Ajeel, APN-CRNACertified Registered Nurse Anesthetist1184279044
- Akrum Al-Zubaidi, D.O.Pulmonary Disease Physician1649426222
- Rafeul Alam, MDAllergy & Immunology Physician1790730687
- Jon Allison, PACMedical Physician Assistant1609812668
- Vivianne Allsop, MDRheumatology Physician1215499603
- Mark Aloia, MDPsychiatry Physician1295842607
Verify Kanao Otsu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license 51382Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
40% fewer Medicare Part D claims than the average allergy & immunology physician in 2024
441 Medicare Part D claims for 70 beneficiaries, against an average of 741 among the 2,899 providers of this specialty who prescribed in Part D. Brand-name drugs were 61% of claims.
Most prescribed
- Montelukast Sodium44 claims
- Dupixent Pen35 claims
- Dupixent Syringe31 claims
- Albuterol Sulfate Hfa28 claims
- Advair Hfa26 claims
- Ipratropium Bromide20 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $157.12
2 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 2,496 providers of this specialty with any payment received $8,321.81 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
One hospital affiliation
- National Jewish HealthDenver, CO · Acute Care Hospitals
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov).
Kanao Otsu among 102 allergy & immunology physician records in Colorado
Kanao Otsu, M.D. is one of 102 allergy & immunology physician records with a practice address in Colorado. 70% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 46% of them.
- NPI issued2007 · 46% of these records are older, 34% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileYes · 54% of these records are
- Graduated2003 · median 2006 among the 55 with a school on file
- Record last updated2021 · 72% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207K00000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Allergy & Immunology Physician providers in Colorado
There are 102 allergy & immunology physician records in Colorado.
All 102 in Colorado → Every provider in Denver → Allergy & Immunology Physician nationwide →
The 8 allergy & immunology physician records with the nearest ZIP codes
- Rafeul Alam, MDDenver, CO 802061790730687
- Donna Bratton, MDDenver, CO 802061972536910
- Christine Cho, MDDenver, CO 802061144494196
- Ronina Covar, MDDenver, CO 802061477643229
- Rohit Katial, MDDenver, CO 802061750463303
- Bruce Lanser, MDDenver, CO 802061427299379
- Donald Leung, MDDenver, CO 802061215012950
- Harold Nelson, MDDenver, CO 802061104916873
Common questions
What is Kanao Otsu, M.D.'s NPI number?
Kanao Otsu, M.D.'s National Provider Identifier (NPI) is 1881748226, issued on Jan 23, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Kanao Otsu, M.D. located?
The NPPES record lists a practice address at 1400 Jackson St, Denver, CO, 80206. Phone: (303) 388-4461. Providers update this record themselves, so call before visiting.
How can I verify Kanao Otsu, M.D.'s license?
NPPES lists Colorado license number 51382, as entered by the provider. Search the Colorado Medical Board at https://dpo.colorado.gov/Medical. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Kanao Otsu, M.D. prescribe under Medicare Part D?
In 2024, Kanao Otsu, M.D. had 441 Medicare Part D claims for 70 beneficiaries; the average among allergy & immunology physician prescribers was 741. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.