Catherine A. Wittman, MD
Pulmonary Disease Physician · Denver, CO
Catherine A. Wittman, MD is a pulmonary disease physician with a practice address in Denver, Colorado, and NPI 1144412610, issued on Aug 17, 2007. Check the license (Colorado 51031, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Catherine A. Wittman
- Credential
- MD
- Primary taxonomy
- Pulmonary Disease Physician 207RP1001X
- License numbers
- 51031 CO
MD434070 PA
Self-reported in NPPES; status is on the state search - Practice location
- 1400 Jackson St, Denver, CO 80206
- Phone
- (303) 388-4461
- Enumerated
- Aug 17, 2007
- Record last updated
- Nov 11, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (303) 270-2206
- Medicaid ID
- 77232569 CO
- Medicare enrollment
- Enrolled (PECOS I20120919000377); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest pulmonary disease physician records → All 288 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 Catherine A. Wittman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license 51031Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
49% fewer Medicare Part D claims than the average pulmonary disease physician in 2024
729 Medicare Part D claims for 121 beneficiaries, against an average of 1,425 among the 11,596 providers of this specialty who prescribed in Part D. Brand-name drugs were 56% of claims.
Most prescribed
- Fluticasone Propionate88 claims
- Trelegy Ellipta88 claims
- Famotidine61 claims
- Albuterol Sulfate Hfa52 claims
- Arnuity Ellipta35 claims
- Spiriva Respimat35 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
- 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).
Catherine A. Wittman among 288 pulmonary disease physician records in Colorado
Catherine A. Wittman, MD 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 2007, is newer than 48% of them.
- NPI issued2007 · 48% of these records are older, 35% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 73% of these records are
- Graduated2005 · median 2003 among the 210 with a school on file
- Record last updated2020 · 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.
All 288 in Colorado → Every provider in Denver → Pulmonary Disease Physician nationwide →
The 8 pulmonary disease physician records with the nearest ZIP codes
- Evans Fernandezperez, M.D.Denver, CO 802061700858065
- James Jett, M.D.Denver, CO 802061174509186
- Jeffrey Kern, MDDenver, CO 802061457371114
- Robert Lapidus, M.D.Denver, CO 802061760485023
- Steven Lommatzsch, M.D.Denver, CO 802061750309571
- Vipin Malik, MDDenver, CO 802061669413860
- James Obrien, M.D.Denver, CO 802061144244161
- Amy Olson, MDDenver, CO 802061265409056
Common questions
What is Catherine A. Wittman, MD's NPI number?
Catherine A. Wittman, MD's National Provider Identifier (NPI) is 1144412610, issued on Aug 17, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Catherine A. Wittman, MD 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 Catherine A. Wittman, MD's license?
NPPES lists Colorado license number 51031, 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 Catherine A. Wittman, MD prescribe under Medicare Part D?
In 2024, Catherine A. Wittman, MD had 729 Medicare Part D claims for 121 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.