Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Timothy Amass, MD

Individual provider Internal Medicine Physician · NPI 1215257126

Timothy Amass, MD practises Internal Medicine in Denver, Colorado. Graduated from George Washington University School of Medicine in 2010, 16 years ago. Practices with Denver Health and Hospital Authority, a 829-clinician group and accepts Medicare assignment. Licensed in Colorado.

Years since qualifying
16
Trained at
George Washington University School of Medicine
Licensed in
CO
In the registry since
2010
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

777 Bannock St
Denver, CO 80204-4597
Phone: (303) 602-5011
Fax: (303) 602-5055
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Critical Care Medicine (Internal Medicine) Physician (primary) Taxonomy 207RC0200X · Licence DR0066739 (CO)
Internal Medicine Physician Taxonomy 207R00000X · Licence DR.0066739 (CO)
Pulmonary Disease Physician Taxonomy 207RP1001X · Licence DR0066739 (CO)

Record details

NPI number1215257126
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJune 3, 2010
Last updated in NPPESNovember 25, 2024
Certification dateNovember 25, 2024

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolGEORGE WASHINGTON UNIVERSITY SCHOOL OF MEDICINE
Graduated 2010 (16 years in practice)
Group practice Denver Health And Hospital Authority — 829 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients68
Services billed 152 a service is one billed item, such as a visit, a test or a procedure
Average patient age67

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Denver Health and Hospital Authority

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 829 clinicians in the practice; 12 are shown here.

Other providers in Denver