Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1033156427 Individual Practitioner Male Practitioner

Dr. Mark G. Leifeste , MD

Specialist • Boulder, CO

Professional Overview & Biography Verified Profile Summary

Dr. Mark Leifeste, MD is a registered healthcare professional specializing in Specialist in Boulder, CO. Practice services are available at 4770 BASELINE RD under active NPI credentials.

Practice Location & Contact Primary Location

Practice Address

4770 Baseline Rd
Suite #300

Boulder, CO 803032666

Telephone 3034496577
Fax 3034471880
Associated Practice Facility / Clinic

Specialty Benchmarks & Practice Insights

Comparative analytics for Specialist in Boulder, CO

Active Practitioner
Practitioner Clinical Experience
Active
City Avg: 38.5 Yrs
State Avg: 33.7 Yrs
Regional Practice Density
46 Specialists

Practicing in Boulder, CO (1204 Statewide)

Telehealth Adoption Rate
4.3% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
67.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Medical Specialties & State Licenses

Specialist Primary Specialty

NUCC Taxonomy Code: 174400000X

State License CO 23486

An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

1 Associated Practitioners
Dr. Carol Tierney , PhD

Psychologist - Clinical

NPI 1316033384

Doctor of Philosophy (Ph.D.)

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

6 Historical Events
NPI Profile Active July 08, 2007

NPI status registered as active in NPPES database

📍
Updated Practice Location July 08, 2007

Registered at 4770 BASELINE RD, SUITE #300, BOULDER, CO 803032666 (Tel: 3034496577)

📍
Updated Business Mailing Address July 08, 2007

Registered at PO BOX 2086, FORT COLLINS, CO 805222086 (Tel: 3034443443)

👤
Provider Name / Credentials Updated July 08, 2007

Recorded as MARK LEIFESTE, M.D.

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) July 08, 2007

Specialist (License #23486 in CO)

🟢
Initial NPI Registration & Enumeration June 02, 2006

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1033156427
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: June 02, 2006
Last Update: July 13, 2026
Sole Proprietor: No

Mailing Address

Po Box 2086

Fort Collins, CO 805222086

Phone: 3034443443

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.