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Compare the published Medicare service mix of Stephen F Koelbel, M.D. with clinicians in the same registry specialty: Physical Medicine And Rehabilitation (CMS).

WEYMOUTH, MA · 25 milesEdit location
Within 25 miles · Approximate ZIP-area distance

Approximate straight-line distances between ZIP-area centers; a city search starts from the average of its ZIP centers. Uses the primary reported practice ZIP, not an exact office address or driving distance. Records without matched coordinates are excluded. How distance works

2024 published service data · 117 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Zachary Bohart, MD

Physical Medicine And Rehabilitation (CMS) · Woburn, MA

Shared published services
3 shared services · view billing descriptions
  • Needle measurement of electrical activity in muscle with injection of chemical for paralysis of nerve muscle (95874)
  • Injection of chemical for paralysis of nerve muscles on arm or leg, 1-4 muscles, first extremity (64642)
  • Electronic analysis reprogramming and refill of spinal canal drug infusion pump by physician (62370)
57%Service-mix similarity~21.3 milesView profile →

Jason E Frankel, MD

Physical Medicine And Rehabilitation (CMS) · Boston, MA

Shared published services
3 shared services · view billing descriptions
  • Needle measurement of electrical activity in muscle with injection of chemical for paralysis of nerve muscle (95874)
  • Injection of chemical for paralysis of nerve muscles on arm or leg, 1-4 muscles, first extremity (64642)
  • Injection of chemical for paralysis of nerve muscles on arm or leg, 1-4 muscles, each additional extremity (64643)
48%Service-mix similarity~11.0 milesView profile →

Randie M Black-Schaffer, MD

Specialty details in registry · Boston, MA

Shared published services
1 shared services · view billing descriptions
  • Injection of chemical for paralysis of nerve muscles on arm or leg, 1-4 muscles, first extremity (64642)
38%Service-mix similarity~11.8 milesView profile →

John A Lowry, DO

Physical Medicine And Rehabilitation (CMS) · Boston, MA

Shared published services
2 shared services · view billing descriptions
  • Electronic analysis reprogramming and refill of spinal canal drug infusion pump by physician (62370)
  • Injection of chemical for paralysis of nerve muscles on arm or leg, 5 or more muscles, first extremity (64644)
33%Service-mix similarity~11.8 milesView profile →

Richard Louis Zaniewski, D.O.

Physical Medicine And Rehabilitation (CMS) · Salem, MA

Shared published services
3 shared services · view billing descriptions
  • Needle measurement of electrical activity in muscle with injection of chemical for paralysis of nerve muscle (95874)
  • Injection of chemical for paralysis of nerve muscles on arm or leg, 1-4 muscles, first extremity (64642)
  • Injection of chemical for paralysis of nerve muscles on arm or leg, 1-4 muscles, each additional extremity (64643)
32%Service-mix similarity~21.2 milesView profile →

Cristina A Shea, MD

Physical Medicine And Rehabilitation (CMS) · Boston, MA

Shared published services
3 shared services · view billing descriptions
  • Injection of chemical for paralysis of nerve muscles on arm or leg, 1-4 muscles, first extremity (64642)
  • Electronic analysis reprogramming and refill of spinal canal drug infusion pump by physician (62370)
  • Injection of chemical for paralysis of nerve muscles on arm or leg, 5 or more muscles, first extremity (64644)
24%Service-mix similarity~11.8 milesView profile →

Anna Serels, M.D.

Physical Medicine And Rehabilitation (CMS) · Boston, MA

Shared published services
2 shared services · view billing descriptions
  • Needle measurement of electrical activity in muscle with injection of chemical for paralysis of nerve muscle (95874)
  • Injection of chemical for paralysis of nerve muscles on arm or leg, 5 or more muscles, first extremity (64644)
21%Service-mix similarity~11.8 milesView profile →

Meredith Hedin, DO

Specialty details in registry · Boston, MA

Shared published services
1 shared services · view billing descriptions
  • Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more (99308)
19%Service-mix similarity~11.4 milesView profile →

Melissa Colbert

Physical Medicine And Rehabilitation (CMS) · Charlestown, MA

Shared published services
1 shared services · view billing descriptions
  • Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more (99308)
15%Service-mix similarity~12.7 milesView profile →

Benjamin Scott

Physical Medicine And Rehabilitation (CMS) · Boston, MA

Shared published services
1 shared services · view billing descriptions
  • Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more (99308)
15%Service-mix similarity~11.0 milesView profile →

Sophia W Chan, DO, DPT, L.AC., ATC

Physical Medicine And Rehabilitation (CMS) · Cambridge, MA

Shared published services
1 shared services · view billing descriptions
  • Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more (99308)
15%Service-mix similarity~14.3 milesView profile →

Duc Tran, M.D.

Physical Medicine And Rehabilitation (CMS) · Boston, MA

Shared published services
1 shared services · view billing descriptions
  • Injection of chemical for paralysis of nerve muscles on arm or leg, 1-4 muscles, each additional extremity (64643)
10%Service-mix similarity~10.4 milesView 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 approximate distance 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.