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Compare the published Medicare service mix of Roopinder S Poonia, M.D. with clinicians in the same registry specialty: Nephrology (CMS).

CARMICHAEL, 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 · 44 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

David Pai, MD

Internal Medicine · Nephrology (CMS) · Sacramento, 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)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Dialysis services, 2-3 physician visits per month (20 years or older) (90961)
78%Service-mix similarity~4.9 milesView profile →

Jose A. Morfin, M.D.

Internal Medicine · Nephrology (CMS) · Sacramento, 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)
  • Dialysis services, 2-3 physician visits per month (20 years or older) (90961)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
69%Service-mix similarity~8.8 milesView profile →

Andrew I-Wei Chin, MD

Internal Medicine · Nephrology (CMS) · Sacramento, 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)
  • Dialysis services, 2-3 physician visits per month (20 years or older) (90961)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
68%Service-mix similarity~8.8 milesView profile →

Jane Y. Yeun, M.D.

Specialty details in registry · Sacramento, 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)
  • Dialysis services, 2-3 physician visits per month (20 years or older) (90961)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
68%Service-mix similarity~8.8 milesView profile →

Nandakishor Kapa, MD

Internal Medicine · Nephrology (CMS) · Sacramento, 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)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Dialysis services, 1 physician visit per month (20 years or older) (90962)
67%Service-mix similarity~8.8 milesView profile →

Nasim Wiegley, M.D.

Internal Medicine · Nephrology (CMS) · Sacramento, 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)
  • Dialysis services, 2-3 physician visits per month (20 years or older) (90961)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
66%Service-mix similarity~8.8 milesView profile →

Shubha Ananthakrishnan, MD

Internal Medicine · Nephrology (CMS) · Sacramento, 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)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
66%Service-mix similarity~8.8 milesView profile →

Eric Chang, M.D.

Nephrology (CMS) · Sacramento, 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)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Dialysis services, 2-3 physician visits per month (20 years or older) (90961)
64%Service-mix similarity~4.9 milesView profile →

Vijay Mudunuri, MD

Nephrology (CMS) · Folsom, 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)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Dialysis services, 2-3 physician visits per month (20 years or older) (90961)
62%Service-mix similarity~9.9 milesView profile →

Mahfuzur Rahman, MD

Nephrology (CMS) · Sacramento, 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)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Dialysis services, 2-3 physician visits per month (20 years or older) (90961)
62%Service-mix similarity~4.9 milesView profile →

Niti Madan

Internal Medicine · Nephrology (CMS) · Sacramento, 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)
  • Dialysis services, 2-3 physician visits per month (20 years or older) (90961)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
62%Service-mix similarity~8.8 milesView profile →

Elena V Gelfand, M.D.

Nephrology (CMS) · Sacramento, 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)
  • Dialysis services, 2-3 physician visits per month (20 years or older) (90961)
  • Dialysis services, 1 physician visit per month (20 years or older) (90962)
60%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.