Kathleen Yan
Gastroenterology Physician · Denver, CO
Kathleen Yan is a gastroenterology physician with a practice address in Denver, Colorado, and NPI 1447783535, issued on Apr 6, 2017. Check the license (Colorado DR.0063946, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Kathleen Yan
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- DR.0063946 CO
Self-reported in NPPES; status is on the state search - Practice location
- 1400 Jackson St, Denver, CO 80206
- Phone
- (303) 388-4461
- Enumerated
- Apr 6, 2017
- Record last updated
- Apr 16, 2025
- Fax
- (303) 398-1211
- Medicare enrollment
- Enrolled (PECOS I20241126001519); accepts Medicare assignment
- Medical or professional school
- Yale University School Of Medicine, 2017
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 334 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.
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- Rafeul Alam, MDAllergy & Immunology Physician1790730687
- Jon Allison, PACMedical Physician Assistant1609812668
- Vivianne Allsop, MDRheumatology Physician1215499603
- Mark Aloia, MDPsychiatry Physician1295842607
Verify Kathleen Yan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license DR.0063946Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
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).
Kathleen Yan among 334 gastroenterology physician records in Colorado
Kathleen Yan is one of 334 gastroenterology physician records with a practice address in Colorado. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 90% of them.
- NPI issued2017 · 90% of these records are older, 7% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated2017 · median 2003 among the 258 with a school on file
- Record last updated2025 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Colorado
There are 334 gastroenterology physician records in Colorado.
All 334 in Colorado → Every provider in Denver → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Arash Babaei, M.D.Denver, CO 802061598716482
- Jeffrey King, M.D.Denver, CO 802061194901942
- Kyley Leroy, DODenver, CO 802061760876668
- Luette Morton, MDDenver, CO 802061861675928
- Pranav Periyalwar, M.D.Denver, CO 802061720218449
- Thomas Reed, MDDenver, CO 802061548230659
- Sarah Safadi, M.D.Denver, CO 802061992117675
- Neil Toribara, MD, PHDDenver, CO 802061144330903
Common questions
What is Kathleen Yan's NPI number?
Kathleen Yan's National Provider Identifier (NPI) is 1447783535, issued on Apr 6, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Kathleen Yan 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 Kathleen Yan's license?
NPPES lists Colorado license number DR.0063946, 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.