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Compare the published Medicare service mix of Poly Chen, M.D. with clinicians in the same registry specialty: Anesthesiology · Interventional Pain Management (CMS).

OR · Exact areaEdit location

2024 published service data · 21 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Gregory M Phillips, MD

Interventional Pain Management · Physical Medicine And Rehabilitation (CMS) · Springfield, OR

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Ultrasonic guidance for needle placement (76942)
68%Service-mix similarityView profile →

Rishi Vora, D.O.

Physical Medicine And Rehabilitation (CMS) · Springfield, OR

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Ultrasonic guidance for needle placement (76942)
66%Service-mix similarityView profile →

Shawn Michael Sills, M.D.

Anesthesiology · Interventional Pain Management (CMS) · Medford, OR

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Electronic analysis of implanted neurostimulator generator with complex spinal cord or peripheral nerve stimulator programming (95972)
  • Injection of anesthetic or steroid into joint between lower spine and hip bone using imaging guidance (27096)
66%Service-mix similarityView profile →

Gregory Anthony Moore, M.D.

Pain Management · Physical Medicine And Rehabilitation (CMS) · Springfield, OR

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Ultrasonic guidance for needle placement (76942)
64%Service-mix similarityView profile →

Patrick Rask, M.D.

Pain Management (CMS) · Corvallis, OR

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Injection of anesthetic or steroid into joint between lower spine and hip bone using imaging guidance (27096)
52%Service-mix similarityView profile →

George David Johnston, D.O.

Interventional Pain Management (CMS) · Medford, OR

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Injection of anesthetic or steroid into joint between lower spine and hip bone using imaging guidance (27096)
52%Service-mix similarityView profile →

Donna M Morgan, MD

Interventional Pain Management (CMS) · Eugene, OR

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Injection of anesthetic or steroid into joint between lower spine and hip bone using imaging guidance (27096)
52%Service-mix similarityView profile →

Kwo Wei David Ho, M.D., PH.D

Neurology · Pain Management (CMS) · Tigard, OR

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Injection of lower or sacral spine facet joint using imaging guidance, single level (64493)
48%Service-mix similarityView profile →

Suresh Chand, MD, MBA

Interventional Pain Management · Psychiatry (CMS) · Beaverton, OR

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Injection of lower or sacral spine facet joint using imaging guidance, single level (64493)
45%Service-mix similarityView profile →

Joseph S Dunn, MD

Interventional Pain Management (CMS) · Eugene, OR

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Injection of anesthetic or steroid into joint between lower spine and hip bone using imaging guidance (27096)
43%Service-mix similarityView profile →

Vladimir B. Fiks, MD

Interventional Pain Management (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Ultrasonic guidance for needle placement (76942)
43%Service-mix similarityView profile →

Peter S Kosek, MD

Anesthesiology · Pain Management (CMS) · Springfield, OR

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Injection of anesthetic or steroid into joint between lower spine and hip bone using imaging guidance (27096)
41%Service-mix similarityView profile →
How this comparison works

We use the same calendar year of CMS Medicare Physician & Other Practitioners data for both providers. Published non-drug service counts are combined by HCPCS code across places of service. We apply log(1 + count), normalize the vectors, and compare them using cosine similarity.

Candidates share the reference provider’s current NPPES primary taxonomy and match the location you enter. We examine up to 500 candidates in NPI order, then show up to 12 with the highest positive similarity within that set. The score is not a percentile, medical recommendation, or prediction. Suppressed services are not estimated. Medicare fee-for-service data does not describe a provider’s entire practice.

Source: CMS Medicare Physician & Other Practitioners - by Provider and Service : 2024-12-01 · Published May 21, 2026.