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Compare the published Medicare service mix of Brian Charles Katz, M.D. with clinicians in the same registry specialty: Gastroenterology · Internal Medicine (CMS).

HIGHLAND PARK, NJ · 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 · 45 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Jose C Costa, MD

Gastroenterology (CMS) · East Brunswick, NJ

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)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Biopsy of large bowel using a flexible endoscope (45380)
75%Service-mix similarity~5.0 milesView profile →

Lawrence M Pickover, MD

Gastroenterology (CMS) · Somerset, NJ

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)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Biopsy of large bowel using a flexible endoscope (45380)
74%Service-mix similarity~3.9 milesView profile →

Satya P Kastuar, MD

Gastroenterology · Internal Medicine (CMS) · North Brunswick, NJ

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)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Biopsy of large bowel using a flexible endoscope (45380)
71%Service-mix similarity~4.3 milesView profile →

Kailash Chand Singhvi, MD

Gastroenterology · Internal Medicine (CMS) · East Brunswick, NJ

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)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
70%Service-mix similarity~5.0 milesView profile →

David Mark Rosenheck, MD

Gastroenterology (CMS) · Edison, NJ

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)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Biopsy of large bowel using a flexible endoscope (45380)
69%Service-mix similarity~5.2 milesView profile →

Sudha Nahar, M.D.

Gastroenterology (CMS) · Somerset, NJ

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)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Biopsy of large bowel using a flexible endoscope (45380)
68%Service-mix similarity~3.9 milesView profile →

Seth Webber, M.D.

Gastroenterology (CMS) · Woodbridge, NJ

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)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Biopsy of large bowel using a flexible endoscope (45380)
67%Service-mix similarity~8.4 milesView profile →

Steven Howard Krawet, M.D.

Gastroenterology (CMS) · East Brunswick, NJ

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)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Biopsy of large bowel using a flexible endoscope (45380)
65%Service-mix similarity~5.0 milesView profile →

Srinivas S Vasireddi, M.D.

Gastroenterology · Internal Medicine (CMS) · Metuchen, NJ

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)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Biopsy of large bowel using a flexible endoscope (45380)
65%Service-mix similarity~5.0 milesView profile →

Ritu Nahar, MD

Gastroenterology · Internal Medicine (CMS) · Somerset, NJ

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)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Biopsy of large bowel using a flexible endoscope (45380)
63%Service-mix similarity~3.9 milesView profile →

James Penn, M.D.

Gastroenterology · Internal Medicine (CMS) · Edison, NJ

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)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Biopsy of large bowel using a flexible endoscope (45380)
63%Service-mix similarity~5.2 milesView profile →

Debra R Goldstein, MD

Gastroenterology · Internal Medicine (CMS) · Edison, NJ

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)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Biopsy of large bowel using a flexible endoscope (45380)
63%Service-mix similarity~5.2 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.