Practice address
2535 S Downing St
Denver, CO 80210
This is the address of Portercare Adventist Health System, Portercare Adventist Health System, Portercare Adventist Health System, Surgone PC, Portercare Adventist Health System and 6 more groups.
At a glance
- Clinicians registered here
- 27
- Physicians (MD and DO)
- 8
- Specialties
- 10
- Industry payments to them, 2025
- $853,367
Specialties here
Who practices here
27 clinicians
- Amanda C. Spahr, R.N Registered Nurse · Suite 500
- Barry A. Ross, M.D. Gastroenterology · Suite 360
- Brian D. Haas, MD Orthopedic Surgery · Ste 180
- Charlie C. Yang, M.D. Orthopedic Surgery · Suite 100
- Christine M. Zander, OT Occupational Therapists · Ste 580
- Conrad J. Tirre, M.D. Facial Plastic Surgery · Suite 440
- Gregory M. Sprung, MD Cardiology
- James P. Boyle, PA-C Physician Assistants · Ste 100
- Jason C. Forsythe, PA-C Physician Assistants · Ste 100
- Jennifer S. Brown, RDH Dental Hygienist
- John J. Derisio, OPA Physician Assistants · Suite 100
- Jolin Honas, ANP Nurse Practitioners · Ste 380
- Jon Campbell, RPH Pharmacists
- Karen L. Heap, OTR/L Occupational Therapists · Suite 580
- Karla L. Maharjan Physician Assistants · Suite 480
- Kathleen Fischer, OT Occupational Therapists · Ste 580
- Kenneth F. Baum, M.D. Infectious Disease · Suite 340
- Meghan F. Nakamura, PA Physician Assistants
- Nicole M. Trouchon, ANP-BC, DNP Nurse Practitioners · Ste 380
- Steven W. Kitchen, M.D. Orthopedic Surgery · Ste 180
- Susan L. Tripp, PHARM.D. Pharmacists
- Tara Hlavaty Haas, OTR Occupational Therapists · Ste 580
- Todd J. Pillen, PA-C Physician Assistants · Suite 380
- Todd M. Miner, MD Orthopedic Surgery · Ste 100
- Toni M. Standley, N.P. Nurse Practitioners · Ste 380
- Vickie L. Healy, OT Occupational Therapists · Suite 580
- Virginia Gibbs, MS, ATC Athletic Trainer
Hospitals and medical groups at this address
- Portercare Adventist Health System 464 of its clinicians here 774
- Portercare Adventist Health System 17 of its clinicians here 774
- Portercare Adventist Health System 9 of its clinicians here 774
- Surgone PC 8 of its clinicians here 39
- Portercare Adventist Health System 4 of its clinicians here 774
- Portercare Adventist Health System 3 of its clinicians here 774
- Portercare Adventist Health System 3 of its clinicians here 774
- Portercare Adventist Health System 2 of its clinicians here 774
- Portercare Adventist Health System 1 of its clinicians here 774
- Portercare Adventist Health System 1 of its clinicians here 774
- Portercare Adventist Health System 1 of its clinicians here 774
From Medicare Care Compare. Numbers on the right are each organization’s clinicians in total.
Industry payments
Drug and device makers reported $853,367 in general payments to 10 clinicians at this address in 2025.
- Brian D. Haas, MD $672,665
- Charlie C. Yang, M.D. $175,028
- Toni M. Standley, N.P. $1,672
- Todd J. Pillen, PA-C $1,064
- Jolin Honas, ANP $1,024
- Todd M. Miner, MD $779
- Gregory M. Sprung, MD $693
- Nicole M. Trouchon, ANP-BC, DNP $183
CMS Open Payments (meals, speaking, consulting and similar; not research). A payment is not evidence of wrongdoing.
Industry-funded research
2 clinicians here are named as investigators on industry-funded studies ($16,012 in research payments reported in 2025).
Research payments usually go to the hospital or research site, not to the investigator personally.
Organizations registered here
- Hand Surgery of Colorado LLC Ambulatory Surgical Clinic/Center
- Colorado Orthopedic Specialists Specialist
- Portercare Adventist Health System Sports Medicine
- Portercare Adventist Health System Transplant Surgery
Sources: CMS NPPES NPI Registry (who is registered at this address, as each clinician reported it), Medicare Care Compare (hospitals and groups), CMS Open Payments 2025. Addresses can be out of date; call before visiting.