Gregory B. Christiansen, MD

Medicare activity in 2024

Official CMS public-use data for Gregory B. Christiansen, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Most frequent services

1. Injection, triamcinolone acetonide, not otherwise specified, 10 mg (J3301)353 services
2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)185 services
3. Aspiration and/or injection of fluid from large joint (20610)153 services
4. X-ray of shoulder, minimum of 2 views (73030)103 services
5. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)100 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

• High blood pressure75%
• High cholesterol75%
• Arthritis75%
• Anxiety36%
• Diabetes27%
• Ischemic heart disease22%

Hospitals where Gregory B. Christiansen works

Medicare's Facility Affiliation Data lists Gregory B. Christiansen at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

• Advanced Surgical HospitalWashington, PA · Acute Care Hospital · Emergency services: not listed by Medicare · CCN 390323

Practice locations

Addresses where Gregory B. Christiansen is enrolled with Medicare (CMS data updated October 2, 2026).

• 100 Trich Dr, Suite 2Washington, PA 15301 (724) 225‑8657

Group practices

Medicare enrollment lists Gregory B. Christiansen as a member of this group (CMS data updated October 2, 2026).

• Advanced Orthopaedic and Rehabilitation LLC12 clinicians in the group

Specialties

• Orthopedic Surgeryprimary

Find other Orthopedic Surgery doctors in Pennsylvania →

Other orthopedic surgeons in Washington

Clinicians with the same Medicare primary specialty in Washington, PA — not a recommendation.

• Armando Avolio Jr., MD
• Donald A. Ravasio, DO
• Michael Divella, DO
• Anthony C. Canterna, MD
• Steven Magister, MD
• Christopher C. Schmidt, MD
• Colleen Harriger, MD
• Vincent J. Ripepi, MD

All orthopedic surgeons in Washington →

Other clinicians in Advanced Orthopaedic and Rehabilitation LLC

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

• Armando Avolio Jr., MD
• Olivia R. King, PA
• Vincent J. Ripepi, MD
• Patrick T. McCulloch, MD
• John M. Gibbons, MD
• Sham J. Persaud, DPM

Clinician information

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
6. Medicare Care Compare — official Medicare tool to look up clinicians