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Compare the published Medicare service mix of Maggie Chen, MD with clinicians in the same registry specialty: Internal Medicine · Nephrology (CMS).

SAN JOSE, CA · Exact areaEdit location

2024 published service data · 22 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Phillip Foon Tse, M.D.

Internal Medicine (CMS) · San Jose, CA

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)
  • Dialysis services, 1 physician visit per month (20 years or older) (90962)
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)
51%Service-mix similarityView profile →

Padma Yarlagadda, M.D.

Internal Medicine · Nephrology (CMS) · San Jose, CA

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)
  • Dialysis services, 1 physician visit per month (20 years or older) (90962)
  • Dialysis services, 2-3 physician visits per month (20 years or older) (90961)
49%Service-mix similarityView profile →

Sheng-Yong Wang, M.D. & PH.D.

Internal Medicine · Nephrology (CMS) · San Jose, CA

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)
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)
  • Dialysis services, 2-3 physician visits per month (20 years or older) (90961)
44%Service-mix similarityView profile →

Addy Squarer, MD

Internal Medicine · Nephrology (CMS) · San Jose, CA

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)
  • Dialysis services, 1 physician visit per month (20 years or older) (90962)
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)
44%Service-mix similarityView profile →

Rashid Sultan Elahi, M.D.

Internal Medicine · Nephrology (CMS) · San Jose, CA

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)
  • Dialysis services, 1 physician visit per month (20 years or older) (90962)
  • Dialysis services, 2-3 physician visits per month (20 years or older) (90961)
40%Service-mix similarityView profile →

Ning Fu, M.D.

Nephrology (CMS) · San Jose, CA

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)
  • Dialysis services, 2-3 physician visits per month (20 years or older) (90961)
37%Service-mix similarityView profile →

Nhat Minh Pham, MD

Internal Medicine · Nephrology (CMS) · San Jose, CA

Shared published services
2 shared services · view billing descriptions
  • Dialysis services, 1 physician visit per month (20 years or older) (90962)
  • Dialysis services, 2-3 physician visits per month (20 years or older) (90961)
36%Service-mix similarityView profile →

Jiann-Gang Frank Luo, MD

Internal Medicine · Nephrology (CMS) · San Jose, CA

Shared published services
2 shared services · view billing descriptions
  • Dialysis services, 1 physician visit per month (20 years or older) (90962)
  • Dialysis services, 2-3 physician visits per month (20 years or older) (90961)
35%Service-mix similarityView profile →

Kajal P Patel, M.D.

Internal Medicine · Nephrology (CMS) · San Jose, CA

Shared published services
2 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)
  • Dialysis services, 2-3 physician visits per month (20 years or older) (90961)
35%Service-mix similarityView profile →

Reena K Ranpuria, MD

Internal Medicine · Nephrology (CMS) · San Jose, CA

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)
  • Dialysis services, 1 physician visit per month (20 years or older) (90962)
  • Dialysis services, 2-3 physician visits per month (20 years or older) (90961)
32%Service-mix similarityView profile →

Steven M Tilles, MD

Internal Medicine · Nephrology (CMS) · San Jose, CA

Shared published services
2 shared services · view billing descriptions
  • Dialysis services, 1 physician visit per month (20 years or older) (90962)
  • Dialysis services, 2-3 physician visits per month (20 years or older) (90961)
29%Service-mix similarityView profile →

Maria Carmela Nazareno Rosales, M.D.

Internal Medicine · Nephrology (CMS) · San Jose, CA

Shared published services
1 shared services · view billing descriptions
  • Dialysis services, 1 physician visit per month (20 years or older) (90962)
27%Service-mix similarityView 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 NPI 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.