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Compare the published Medicare service mix of Rohini Singh, D.O with clinicians in the same registry specialty: Internal Medicine · Nephrology (CMS).

LA PALMA, CA · 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 · 58 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Tanzina Nasreen, M.D.

Internal Medicine · Nephrology (CMS) · Los Alamitos, CA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Management using the results of remote vital sign monitoring per calendar month, first 20 minutes (99457)
95%Service-mix similarity~4.0 milesView profile →

Nancy Said Hernandez, DO

Nephrology (CMS) · Fullerton, CA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Management using the results of remote vital sign monitoring per calendar month, first 20 minutes (99457)
89%Service-mix similarity~8.4 milesView profile →

Mohammad Ismail, MD

Internal Medicine · Nephrology (CMS) · Paramount, CA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Management using the results of remote vital sign monitoring per calendar month, first 20 minutes (99457)
88%Service-mix similarity~7.8 milesView profile →

Peter Sohn, M.D.

Nephrology (CMS) · Garden Grove, CA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Management using the results of remote vital sign monitoring per calendar month, first 20 minutes (99457)
84%Service-mix similarity~8.5 milesView profile →

Herbert S. Tiquia, MD

Nephrology (CMS) · Garden Grove, CA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Management using the results of remote vital sign monitoring per calendar month, first 20 minutes (99457)
83%Service-mix similarity~8.5 milesView profile →

Steve Bui, MD

Nephrology (CMS) · Garden Grove, CA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Management using the results of remote vital sign monitoring per calendar month, first 20 minutes (99457)
83%Service-mix similarity~8.5 milesView profile →

Nirav D Gandhi, M.D.

Nephrology (CMS) · Anaheim, CA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Management using the results of remote vital sign monitoring per calendar month, first 20 minutes (99457)
83%Service-mix similarity~4.9 milesView profile →

Chonlada Chivangkul, M.D.

Internal Medicine · Nephrology (CMS) · Long Beach, CA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Management using the results of remote vital sign monitoring per calendar month, first 20 minutes (99457)
79%Service-mix similarity~9.0 milesView profile →

Sridhar Kadumpalli Reddy, M.D.

Nephrology (CMS) · Garden Grove, CA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Management using the results of remote vital sign monitoring per calendar month, first 20 minutes (99457)
78%Service-mix similarity~8.5 milesView profile →

Essam Maasarani, M.D.

Internal Medicine · Nephrology (CMS) · Long Beach, CA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Dialysis services, 2-3 physician visits per month (20 years or older) (90961)
70%Service-mix similarity~9.0 milesView profile →

Sapna Singh Patel, MD

Internal Medicine · Nephrology (CMS) · Long Beach, CA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Dialysis services, 2-3 physician visits per month (20 years or older) (90961)
69%Service-mix similarity~9.0 milesView profile →

Meenakshi Verma, M.D

Nephrology (CMS) · Los Alamitos, CA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Management using the results of remote vital sign monitoring per calendar month, first 20 minutes (99457)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
67%Service-mix similarity~4.0 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.