Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Mark Dean Christensen, MD

Individual provider Family Medicine Physician · NPI 1588944516

Dr. Mark Dean Christensen, MD is a Family Practice in Castle Pines, Colorado. Graduated from Loma Linda University School of Medicine in 2009, 17 years ago. Practices with Onpoint Medical Group LLC, a 94-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in California and Colorado.

Years since qualifying
17
Trained at
Loma Linda University School of Medicine
Licensed in
CA, CO
In the registry since
2011
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

7280 Lagae Rd Ste J
Castle Pines, CO 80108-9454
Phone: (303) 814-0505
Fax: (303) 814-6491
Show map & directions

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

Additional practice locations (1)

  • 7280 Lagae Rd Ste I, Castle Pines, CO 80108-9454 — (303) 814-0505

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 56009 (CO)
Family Medicine Physician Taxonomy 207Q00000X · Licence A115152 (CA)
Sports Medicine (Family Medicine) Physician Taxonomy 207QS0010X · Licence DR.0056009 (CO)

Record details

NPI number1588944516
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 22, 2011
Last updated in NPPESAugust 23, 2023
Certification dateAugust 23, 2023

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolLOMA LINDA UNIVERSITY SCHOOL OF MEDICINE
Graduated 2009 (17 years in practice)
Group practice Onpoint Medical Group Llc — 94 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

Other providers in Castle Pines