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Compare the published Medicare service mix of Christopher Ptak, PA-C with clinicians in the same registry specialty: Physician Assistant.

RIDGEWOOD, NY · 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 · 500 eligible profiles compared. This search reached its 500-profile comparison limit, using approximate distance order. Narrow the location for a more focused comparison. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Rubina Feroz Khan

Physician Assistant · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus and influenza (87428)
92%Service-mix similarity~5.1 milesView profile →

Paul Adrian Powell, P.A

Physician Assistant · Elmhurst, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus and influenza (87428)
92%Service-mix similarity~2.6 milesView profile →

Bridget Maginity, PA-C

Physician Assistant · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus and influenza (87428)
91%Service-mix similarity~5.0 milesView profile →

Brittany Roberts-Blake, PA

Physician Assistant · Brooklyn, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • 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 low level of medical decision making, if using time, 30 minutes or more (99203)
89%Service-mix similarity~2.2 milesView profile →

Ryan William Logan

Physician Assistant · Brooklyn, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus and influenza (87428)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
88%Service-mix similarity~0.9 milesView profile →

Antoinette P. Martinez, P.A.

Physician Assistant · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus and influenza (87428)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
88%Service-mix similarity~5.3 milesView profile →

Adetinuke Motunrayo Ogunleye, PA-C

Physician Assistant · Brooklyn, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus and influenza (87428)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
88%Service-mix similarity~4.8 milesView profile →

Rajiv Gupta, P.A.

Physician Assistant · Brooklyn, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus and influenza (87428)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
87%Service-mix similarity~0.9 milesView profile →

Kelly Elizabeth Lifavi, PA-C

Physician Assistant · Brooklyn, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus and influenza (87428)
87%Service-mix similarity~4.7 milesView profile →

Danae King

Physician Assistant · Forest Hills, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus and influenza (87428)
82%Service-mix similarity~3.2 milesView profile →

Nancy Marrazzo, PA

Physician Assistant · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus and influenza (87428)
81%Service-mix similarity~5.1 milesView profile →

Kathiana Blaise, PA-C

Physician Assistant · Brooklyn, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus and influenza (87428)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
81%Service-mix similarity~4.9 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.