Nicholas Michael Metas Chapman, DO
Allergy & Immunology Physician · Denver, CO
Nicholas Michael Metas Chapman, DO is an allergy & immunology physician with a practice address in Denver, Colorado, and NPI 1366022212, issued on Apr 13, 2021. Check the license (Colorado DR.0071734, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Nicholas Michael Metas Chapman
- Credential
- DO
- Primary taxonomy
- Allergy & Immunology Physician 207K00000X
- License number
- DR.0071734 CO
Self-reported in NPPES; status is on the state search - Practice location
- 1400 Jackson St, Denver, CO 80206
- Phone
- (877) 225-5654
- Enumerated
- Apr 13, 2021
- Record last updated
- Mar 7, 2025
- Fax
- (303) 270-2379
- 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 Nicholas Michael Metas Chapman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license DR.0071734Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average allergy & immunology physician in 2024
68 Medicare Part D claims for 36 beneficiaries, against an average of 741 among the 2,899 providers of this specialty who prescribed in Part D.
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.
Nicholas Michael Metas Chapman among 102 allergy & immunology physician records in Colorado
Nicholas Michael Metas Chapman, DO 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 2021, is newer than 97% of them.
- NPI issued2021 · 97% of these records are older, 0% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileNo · 54% of these records are
- Record last updated2025 · 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 Nicholas Michael Metas Chapman, DO's NPI number?
Nicholas Michael Metas Chapman, DO's National Provider Identifier (NPI) is 1366022212, issued on Apr 13, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Nicholas Michael Metas Chapman, DO located?
The NPPES record lists a practice address at 1400 Jackson St, Denver, CO, 80206. Phone: (877) 225-5654. Providers update this record themselves, so call before visiting.
How can I verify Nicholas Michael Metas Chapman, DO's license?
NPPES lists Colorado license number DR.0071734, 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 Nicholas Michael Metas Chapman, DO prescribe under Medicare Part D?
In 2024, Nicholas Michael Metas Chapman, DO had 68 Medicare Part D claims for 36 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.