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

Mark A Twardowski, DO

Individual provider Family Medicine Physician · NPI 1437118387

Mark A Twardowski, DO practises Internal Medicine in Grand Junction, Colorado. Graduated from Kansas City Medical College in 1988, 38 years ago. Practices with Community Medical Group LLC, a 108-clinician group and accepts Medicare assignment. Licensed in Colorado.

Years since qualifying
38
Trained at
Kansas City Medical College
Licensed in
CO
In the registry since
2006
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.

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Practice location Address checks out

743 Horizon Ct Ste 100
Grand Junction, CO 81506-8701
Phone: (970) 241-7600
Fax: (970) 263-4831
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

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 31690 (CO)

Record details

NPI number1437118387
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedMarch 20, 2006
Last updated in NPPESMarch 7, 2023
Certification dateOctober 1, 2021

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolKANSAS CITY MEDICAL COLLEGE
Graduated 1988 (38 years in practice)
Group practice Community Medical Group Llc — 108 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Removal of skin lesions 35 times · 70th percentile
Skin biopsy 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

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 patients394
Services billed 4,612 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

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. Those with a page here are linked.

  • Center At Foresight Llc, The Nursing home · Grand Junction, CO · listed as The Center at Foresight, LLC
  • Community Hospital Hospital · Grand Junction, CO
  • Intermountain Health St. Mary'S Regional Hospital Hospital · Grand Junction, CO
  • Adoration Home Health Home health agency · Grand Junction, CO
  • Hopewest Grand Junction Hospice · Grand Junction, CO

Colleagues at Community Medical Group LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 108 clinicians in the practice; 12 are shown here.

Other providers in Grand Junction