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Compare the published Medicare service mix of John R Ferrari, OD with clinicians in the same registry specialty: Optometrist.

FOLSOM, PA · 10 milesEdit location
Within 10 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 · 86 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Jimmy Tuy Nguyen, O.D.

Optometrist · Broomall, PA

Shared published services
1 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)
58%Service-mix similarity~6.1 milesView profile →

Ranjoo K Prasad, OD

Optometrist · Philadelphia, PA

Shared published services
1 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)
57%Service-mix similarity~8.3 milesView profile →

Nestor Biletsky

Optometrist · Upper Darby, PA

Shared published services
1 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)
45%Service-mix similarity~5.7 milesView profile →

Nicole S Williams, O.D.

Optometrist · Springfield, PA

Shared published services
1 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)
44%Service-mix similarity~2.7 milesView profile →

Ines M Casado Strine, OD

Optometrist · Newtown Square, PA

Shared published services
1 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)
43%Service-mix similarity~7.8 milesView profile →

Eric B Zhou, O.D.

Optometrist · Media, PA

Shared published services
1 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)
42%Service-mix similarity~4.2 milesView profile →

Megan Buliano Smith, O.D.

Optometrist · Chester, PA

Shared published services
1 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)
42%Service-mix similarity~3.7 milesView profile →

James R Hall, O.D.

Optometrist · Ardmore, PA

Shared published services
1 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)
42%Service-mix similarity~7.9 milesView profile →

Michael B Maizel, OD

Optometrist · Lansdowne, PA

Shared published services
2 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)
  • Multiple measurements of eye fluid pressure over an extended time period (92100)
41%Service-mix similarity~4.8 milesView profile →

M Morse Michels, O.D.

Optometrist · Drexel Hill, PA

Shared published services
1 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)
38%Service-mix similarity~4.4 milesView profile →

Ngoc Au, O.D

Optometrist · Philadelphia, PA

Shared published services
1 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)
38%Service-mix similarity~9.7 milesView profile →

Richard E Kareha, OD

Optometrist · Upper Darby, PA

Shared published services
1 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)
38%Service-mix similarity~5.7 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.