Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Bret Michael James Clawson, MD
Hospitalist Physician in Denver, CO · enumerated 2019.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1275093726
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Registry record
Entity type Individual (Type 1)
Name Dr. Bret Michael James Clawson
Credential MD
Sex Male
Practice address 2525 S Downing St, Denver, CO, 80210
Phone (303) 715-7184
Enumeration date Mar 21, 2019
Last updated in NPPES Jul 27, 2026
Taxonomy & licenses
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License DR.0072679 (CO) Secondary
208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License DR.72679 (CO) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
What is the NPI number for Bret Clawson?
The National Provider Identifier (NPI) for Bret Clawson is 1275093726, a Type 1 (individual) record in the CMS NPPES registry.
Where does Bret Clawson practice?
The practice location on file with NPPES is in Denver, CO. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Carrie Thompson Nurse Practitioner · Denver, CO NPI 1578567095 Select Specialty Hospital - Denver Inc Long Term Care Hospital · Denver, CO NPI 1528067691 Payam Khalighi Hospitalist Physician · Denver, CO NPI 1043282304 Michael Williams Internal Medicine Physician · Denver, CO NPI 1598738031 Keith Hruska Internal Medicine Physician · Denver, CO NPI 1730155490 Susanna Coiro Internal Medicine Physician · Denver, CO NPI 1548236714 Carol Michaels Addiction (Substance Use Disorder) Counselor · Denver, CO NPI 1992766141 Inna Lozinskaya Internal Medicine Physician · Denver, CO NPI 1942248638
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-07-27.