NPPES file of Aug 9, 2026

Sean Maddock, M.D.

Pulmonary Disease Physician · Denver, CO

Sean Maddock, M.D. is a pulmonary disease physician with a practice address in Denver, Colorado, and NPI 1841684305, issued on Mar 23, 2015. Check the license (Colorado DR.0066686, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1841684305
Name
Sean Maddock
Credential
M.D.
Primary taxonomy
Pulmonary Disease Physician 207RP1001X
License numbers
DR.0066686 CO
10788680-1205 UT
Self-reported in NPPES; status is on the state search
Practice location
1400 Jackson St, Denver, CO 80206
Phone
(303) 388-4461
Enumerated
Mar 23, 2015
Record last updated
Sep 2, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(303) 398-1211
Medicare enrollment
Enrolled (PECOS I20210810003296); accepts Medicare assignment
Medical or professional school
New York Medical College, 2015
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1400 Jackson St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Ronya Ajeel, APN-CRNACertified Registered Nurse Anesthetist1184279044
  2. Akrum Al-Zubaidi, D.O.Pulmonary Disease Physician1649426222
  3. Rafeul Alam, MDAllergy & Immunology Physician1790730687
  4. Jon Allison, PACMedical Physician Assistant1609812668
  5. Vivianne Allsop, MDRheumatology Physician1215499603
  6. Mark Aloia, MDPsychiatry Physician1295842607

Verify Sean Maddock in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersColorado Medical Board
    Search for license DR.0066686
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Colorado license search

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87% fewer Medicare Part D claims than the average pulmonary disease physician in 2024

185 Medicare Part D claims for 44 beneficiaries, against an average of 1,425 among the 11,596 providers of this specialty who prescribed in Part D. Brand-name drugs were 63% of claims.

  1. Sean Maddock185
  2. Specialty average1,425

Most prescribed

  1. Stiolto Respimat24 claims
  2. Albuterol Sulfate Hfa20 claims
  3. Dulera17 claims
  4. Advair Hfa15 claims
  5. Azelastine Hcl15 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.

One hospital affiliation

  1. 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).

Sean Maddock among 288 pulmonary disease physician records in Colorado

Sean Maddock, M.D. is one of 288 pulmonary disease physician records with a practice address in Colorado. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 82% of them.

  • NPI issued2015 · 82% of these records are older, 13% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 73% of these records are
  • Graduated2015 · median 2003 among the 210 with a school on file
  • Record last updated2021 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RP1001X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pulmonary Disease Physician providers in Colorado

There are 288 pulmonary disease physician records in Colorado.

The 8 pulmonary disease physician records with the nearest ZIP codes

  1. Evans Fernandezperez, M.D.Denver, CO 802061700858065
  2. James Jett, M.D.Denver, CO 802061174509186
  3. Jeffrey Kern, MDDenver, CO 802061457371114
  4. Robert Lapidus, M.D.Denver, CO 802061760485023
  5. Steven Lommatzsch, M.D.Denver, CO 802061750309571
  6. Vipin Malik, MDDenver, CO 802061669413860
  7. James Obrien, M.D.Denver, CO 802061144244161
  8. Amy Olson, MDDenver, CO 802061265409056

Common questions

What is Sean Maddock, M.D.'s NPI number?

Sean Maddock, M.D.'s National Provider Identifier (NPI) is 1841684305, issued on Mar 23, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Sean Maddock, 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 Sean Maddock, M.D.'s license?

NPPES lists Colorado license number DR.0066686, 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 Sean Maddock, M.D. prescribe under Medicare Part D?

In 2024, Sean Maddock, M.D. had 185 Medicare Part D claims for 44 beneficiaries; the average among pulmonary disease physician prescribers was 1,425. 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.