Kathleen R. Marzluf, MD
Anesthesiology Physician · Denver, CO
Kathleen R. Marzluf, MD is an anesthesiology physician with a practice address in Denver, Colorado, and NPI 1033346879, issued on Jun 19, 2009. Check the license (Colorado 0055599, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Kathleen R. Marzluf
- Credential
- MD
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License numbers
- 0055599 CO
94-07186 KS
341266 NY
Self-reported in NPPES; status is on the state search - Practice location
- 2045 N Franklin St, Denver, CO 80205
- Phone
- (303) 338-4545
- Enumerated
- Jun 19, 2009
- Record last updated
- Apr 28, 2026
- Medicaid ID
- 91036232 CO
- Medicare enrollment
- Enrolled (PECOS I20150915002679); accepts Medicare assignment
- Medical or professional school
- University Of Kansas School Of Med (Kc/Wich/Sal), 2009
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 1,202 in Colorado → Look up another NPI →
Also registered at 2045 N Franklin St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Kathleen R. Marzluf in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license 0055599Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Colorado Permanente Medical Group PCLone Tree, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kathleen R. Marzluf among 1,202 anesthesiology physician records in Colorado
Kathleen R. Marzluf, MD is one of 1,202 anesthesiology physician records with a practice address in Colorado. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 65% of them.
- NPI issued2009 · 65% of these records are older, 32% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2009 · median 2006 among the 824 with a school on file
- Record last updated2026 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Anesthesiology Physician providers in Colorado
There are 1,202 anesthesiology physician records in Colorado.
All 1,202 in Colorado → Every provider in Denver → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- David Barclay, MDDenver, CO 802051033265616
- Joseph Billig, M.D.Denver, CO 802051467408708
- Steven Ellstrom, MDDenver, CO 802051427098623
- Joy Guth, MDDenver, CO 802051992851679
- Veronica Hailes, M.D.Denver, CO 802051376577031
- Michael Heller, MDDenver, CO 802051093861619
- Matthew Koehler, MDDenver, CO 802051578600847
- Mauricio Mejia, M.D.Denver, CO 802051093710352
Common questions
What is Kathleen R. Marzluf, MD's NPI number?
Kathleen R. Marzluf, MD's National Provider Identifier (NPI) is 1033346879, issued on Jun 19, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Kathleen R. Marzluf, MD located?
The NPPES record lists a practice address at 2045 N Franklin St, Denver, CO, 80205. Phone: (303) 338-4545. Providers update this record themselves, so call before visiting.
How can I verify Kathleen R. Marzluf, MD's license?
NPPES lists Colorado license number 0055599, 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.
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.