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

Jake Graehm Halvorsen, DO

Individual provider Internal Medicine Physician · NPI 1497015002

Jake Graehm Halvorsen, DO practises Internal Medicine in Warren, Michigan. Graduated from Rocky Vista University College of Osteopathic Med in 2012, 14 years ago. Practices with Usacs Community Emergency Services of Colorado Inc, a 167-clinician group and accepts Medicare assignment. Licensed in Michigan.

Years since qualifying
14
Trained at
Rocky Vista University College of Osteopathic Med
Licensed in
MI
In the registry since
2012
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

11885 E 12 Mile Rd Ste 300A
Warren, MI 48093-3474 Not confirmed with CMS for 14 years — call before visiting
Phone: (586) 582-6630
Fax: (586) 582-6631
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 5101019943 (MI)

Record details

NPI number1497015002
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorYes
NPI enumeratedMay 17, 2012
Last updated in NPPESMay 17, 2012

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolROCKY VISTA UNIVERSITY COLLEGE OF OSTEOPATHIC MED
Graduated 2012 (14 years in practice)
Group practice Usacs Community Emergency Services Of Colorado Inc. — 167 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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 patients121
Services billed 174 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

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

Colleagues at Usacs Community Emergency Services of Colorado Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 167 clinicians in the practice; 12 are shown here.

Other providers in Warren