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General surgeons who accept Medicare in Castle Rock, CO
CMS lists 44 clinicians in this specialty with a practice address in Castle Rock. Accept Medicare assignment (the Medicare-approved amount as full payment): 44. Offer telehealth: 9.
Typical amounts Medicare approves in ZIP 80104 (2024 Medicare rates, the latest CMS has published): a new-patient visit $89, of which you pay about $22; a follow-up visit $72, of which you pay about $18 — the 20% coinsurance after the yearly Part B deductible. Clinicians who don't accept assignment can charge up to 15% more; with a Medicare Advantage plan, your plan's copay applies instead.
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Order: clinicians who accept assignment first, then by MIPS score (highest first), then by last name.
Rachel Thompson, DO
✓ Accepts Medicare assignmentMIPS score (2024): 96.4/100✓ TelehealthGraduated 2019 · University of North Texas HSC, College of Osteopathic MedFemaleDrug and device company payments (2025): $175Phiet T. Bui, MD
✓ Accepts Medicare assignmentMIPS score (2024): 87.2/100✓ TelehealthGraduated 2001 · University of Colorado School of Medicine, AuroraMaleDrug and device company payments (2025): $1,699Joshua W. Long, MD
✓ Accepts Medicare assignmentMIPS score (2024): 81.6/100✓ TelehealthGraduated 2004 · University of Texas Southwestern Medical School at DallasMaleDrug and device company payments (2025): $32Lauren E. Gleckler, MD
✓ Accepts Medicare assignmentMIPS score (2024): 54.5/100Graduated 2013 · New York University Medical College - NLGFemaleOther offices in Castle Rock: 2John C. James, MD
✓ Accepts Medicare assignmentMIPS score (2024): 54.5/100Graduated 2007 · Texas Tech University Health Science Center School of MedicineMaleDrug and device company payments (2025): $22Jason L. Knudtson, MD
✓ Accepts Medicare assignmentMIPS score (2024): 54.5/100Graduated 1998MaleDrug and device company payments (2025): $20Thaddeus E. Liniewicz, DO
✓ Accepts Medicare assignmentMIPS score (2024): 54.5/100Graduated 2015 · Lake Erie College of Osteopathic Medicine, ErieMaleDavid A. Baer, MD
✓ Accepts Medicare assignmentGraduated 1986 · Harvard Medical SchoolMaleDrug and device company payments (2025): $9,757Neil A. Banga, MD
✓ Accepts Medicare assignmentGraduated 2003MaleAndrew J. Berson, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 1998 · Saint Louis University School of MedicineMaleDrug and device company payments (2025): $104Craig R. Clear, MD
✓ Accepts Medicare assignmentGraduated 1992 · University of Colorado School of Medicine, DenverMaleDrug and device company payments (2025): $265Donald J. Conner, MD
✓ Accepts Medicare assignmentGraduated 1978 · University of Colorado School of Medicine, DenverMaleDrug and device company payments (2025): $29Jesse J. Conner, MD
✓ Accepts Medicare assignmentGraduated 2015 · Texas a & M University System, HSC, College of MedicineMaleDrug and device company payments (2025): $102Michael Dabit, DO
✓ Accepts Medicare assignment✓ TelehealthGraduated 2018 · Rocky Vista University College of Osteopathic MedMaleDrug and device company payments (2025): $1,987Lawrence G. Davis, MD
✓ Accepts Medicare assignmentGraduated 1998 · Indiana Medical College, School of Medicine of Purdue UniversityMaleDrug and device company payments (2025): $65James M. Dickinson, MD
✓ Accepts Medicare assignmentGraduated 1993 · University of Kansas School of Med (kc/wich/sal)MaleDrug and device company payments (2025): $18Warren C. Dorlac, MD
✓ Accepts Medicare assignmentGraduated 1989 · Uniformed Services Uhs Fe Hebert School of MedMaleDrug and device company payments (2025): $946John Fessenden, MD
✓ Accepts Medicare assignmentGraduated 1997 · Creighton University School of MedicineMaleThomas A. Herzog, MD
✓ Accepts Medicare assignmentGraduated 1995 · University of Colorado School of Medicine, DenverMaleDrug and device company payments (2025): $118Amir J. Heydari, MD
✓ Accepts Medicare assignmentGraduated 1990 · University of Colorado School of Medicine, DenverMaleDrug and device company payments (2025): $1,289Trent L. Hovenga, MD
✓ Accepts Medicare assignmentGraduated 1984 · University of Iowa, RJ & L Carver College of MedicineMaleDrug and device company payments (2025): $31John M. Hunter, MD
✓ Accepts Medicare assignmentGraduated 2000 · University of Texas Southwestern Medical School at DallasMaleDrug and device company payments (2025): $75Jeffrey P. Johnson, MD
✓ Accepts Medicare assignmentGraduated 2006MaleAndrea B. Kaiser, MD
✓ Accepts Medicare assignmentGraduated 1993FemaleBrian E. Leininger, MD
✓ Accepts Medicare assignmentGraduated 1998 · University of Missouri, Columbia School of MedicineMaleDerek Leopold, MD
✓ Accepts Medicare assignmentGraduated 2010 · University of Colorado School of Medicine, DenverMaleDrug and device company payments (2025): $98Caitlyn D. Lesh, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2012FemaleDrug and device company payments (2025): $1,081Priscilla F. Nobecourt, MD
✓ Accepts Medicare assignmentGraduated 2013FemalePing Pan, MD
✓ Accepts Medicare assignmentGraduated 2011FemaleClaire Pederson, MD
✓ Accepts Medicare assignmentGraduated 2010 · University of Washington School of MedicineFemaleHisman H. Percival, MD
✓ Accepts Medicare assignmentGraduated 1990 · University of Minnesota Medical SchoolMaleSamuel C. Phinney, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2006 · Uniformed Services Uhs Fe Hebert School of MedMaleDrug and device company payments (2025): $2,526Robert L. Powell, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2012 · University of Colorado School of Medicine, DenverMaleDrug and device company payments (2025): $84Keyan Riley, MD
✓ Accepts Medicare assignmentGraduated 2000 · University of Utah School of MedicineMaleDrug and device company payments (2025): $2,225Michael D. Roller, MD
✓ Accepts Medicare assignmentGraduated 1995 · University of New Mexico School of MedicineMaleDrug and device company payments (2025): $178Thomas Schroeppel, MD
✓ Accepts Medicare assignmentGraduated 2000 · University of Minnesota Medical SchoolMaleParth K. Shah, MD
✓ Accepts Medicare assignmentGraduated 2006MaleDrug and device company payments (2025): $1,630Ingrid Sharon, MD
✓ Accepts Medicare assignmentGraduated 1982 · Oral Roberts University School of MedicineFemaleShreya J. Shetty, MD
✓ Accepts Medicare assignmentGraduated 2017FemaleDrug and device company payments (2025): $124Cash C. Sterling, MD
✓ Accepts Medicare assignmentGraduated 2018 · University of Kansas School of Med (kc/wich/sal)MaleDrug and device company payments (2025): $4,321David H. Tassin, MD
✓ Accepts Medicare assignmentGraduated 2015MaleSpencer Trooboff, MD
✓ Accepts Medicare assignmentGraduated 2015 · Ohio State University College of MedicineMaleDaniel J. Valentino, MD
✓ Accepts Medicare assignmentGraduated 2003 · Ohio State University College of MedicineMaleAhmed Zihni, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2010 · State University of New York Downstate Medical CenterMaleDrug and device company payments (2025): $536
Before you book
This list comes from Medicare's enrollment records, not from reviews. Call the office to confirm the clinician is taking new Medicare patients. With Original Medicare, a clinician who accepts assignment can only charge you the Medicare deductible and coinsurance; one who doesn't may charge up to 15% more than the Medicare-approved amount. If you have a Medicare Advantage plan, check that the clinician is in the plan's network.
The MIPS final score (0–100) comes from Medicare's Merit-based Incentive Payment System for 2024. It combines quality measures, cost, improvement activities and use of certified health records, and it sets a payment adjustment. Clinicians who report as a group share the group's score. It is not a patient rating, and many clinicians have no published score.
Payments from drug and medical device companies come from CMS Open Payments (2025 general payments: meals, travel, consulting and speaking fees, gifts and similar), summed for each clinician. Receiving payments is legal and common and does not mean a clinician did anything wrong.
Other specialists in Castle Rock
- Primary care doctors190
- Nurse practitioners181
- Cardiologists55
- Dermatologists9
- Orthopedic surgeons29
- Neurologists24
- Gastroenterologists26
- Ophthalmologists4
- Optometrists19
- Podiatrists8
- Urologists21
- Pulmonologists9
- Nephrologists4
- Endocrinologists6
- Rheumatologists6
- ENT doctors13
- Oncologists13
- Psychiatrists10
- Psychologists6
- Therapists and counselors76
- Physical therapists69
- Occupational therapists15
- Speech therapists6
- Audiologists6
- Chiropractors10
- Gynecologists44
- Vascular surgeons10
- Physiatrists10
- Allergists4
- Neurosurgeons11
- Infectious disease doctors3
Other care in Castle Rock
Hospitals · Nursing homes · Dialysis centers · Home health agencies · Hospices
Nearby cities
Enrollment, addresses and scores are as reported to CMS and can change. This is not a list of in-network providers for any Medicare Advantage plan, and it is not medical advice. Source: CMS Provider Data Catalog — Doctors and Clinicians National Downloadable File, Clinician MIPS Performance 2024 and Facility Affiliation Data (released Oct 2, 2026).