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

Dr. Timothy Jon Arnott, MD

Individual provider Family Medicine Physician · NPI 1053362673

Dr. Timothy Jon Arnott, MD is registered under Family Practice in Denver, Colorado. Qualified in 1990, 36 years ago. Practices with Portercare Adventist Health System, a 767-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California, Colorado, Guam and Tennessee and 1 more.

Years since qualifying
36
Licensed in
CA, CO, GU, TN, WY
In the registry since
2006
Specialties on file
5
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

2520 S Downing St
Denver, CO 80210-5818
Phone: (303) 282-3676
Fax: (530) 237-0477
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence CDR.0001260 (CO)
Family Medicine Physician Taxonomy 207Q00000X · Licence 13835C (WY)
Family Medicine Physician Taxonomy 207Q00000X · Licence 57363 (TN)
Family Medicine Physician Taxonomy 207Q00000X · Licence M-2158 (GU)
Family Medicine Physician Taxonomy 207Q00000X · Licence G87967 (CA)

Record details

NPI number1053362673
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedMay 16, 2006
Last updated in NPPESJanuary 13, 2022
Certification dateJanuary 13, 2022

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolOTHER
Graduated 1990 (36 years in practice)
Group practice Portercare Adventist Health System — 767 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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 patients164
Services billed 394 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

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.

  • Adventhealth Castle Rock Hospital · Castle Rock, CO
  • AdventHealth Littleton Hospital · Littleton, CO
  • AdventHealth Parker Hospital · Parker, CO
  • AdventHealth Porter Hospital · Denver, CO

Colleagues at Portercare Adventist Health System

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 767 clinicians in the practice; 12 are shown here.

Other providers in Denver