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

Troy Tweiten, MD

Individual provider Internal Medicine Physician · NPI 1447634670

Troy Tweiten, MD is a Hospitalist in Cambridge, Massachusetts. Graduated from Rush Medical College of Rush University in 2015, 11 years ago. Practices with Catholic Health Initiatives Colorado, a 1,266-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Colorado and Massachusetts.

Years since qualifying
11
Trained at
Rush Medical College of Rush University
Licensed in
CO, MA
In the registry since
2015
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

300 Mount Auburn St
Cambridge, MA 02138-5600
Phone: (617) 492-3500
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1950 Mountain View Ave, Longmont, CO 80501-3129 — (303) 485-3066

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence DR.0068923 (CO)
Internal Medicine Physician Taxonomy 207R00000X · Licence DR.0068923 (CO)
Internal Medicine Physician Taxonomy 207R00000X · Licence 264249 (MA)

Record details

NPI number1447634670
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 17, 2015
Last updated in NPPESJanuary 29, 2024
Certification dateJanuary 29, 2024

Medicare enrollment

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

Medicare specialtyHOSPITALIST
Medical schoolRUSH MEDICAL COLLEGE OF RUSH UNIVERSITY
Graduated 2015 (11 years in practice)
Group practice Catholic Health Initiatives Colorado — 1266 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 patients206
Services billed 541 a service is one billed item, such as a visit, a test or a procedure
Average patient age77

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 Catholic Health Initiatives Colorado

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1266 clinicians in the practice; 12 are shown here.

Other providers in Cambridge