A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

Compare the published Medicare service mix of Walter Chang, DNP with clinicians in the same registry specialty: Nurse Practitioner (CMS).

SACRAMENTO, CA · Exact areaEdit location

2024 published service data · 18 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Shannon Tam, NP

Specialty details in registry · Sacramento, CA

Shared published services
1 shared services · view billing descriptions
  • Psychiatric diagnostic evaluation with medical services (90792)
63%Service-mix similarityView profile →

Arbert Nazareno, DNP

Nurse Practitioner (CMS) · Sacramento, CA

Shared published services
1 shared services · view billing descriptions
  • Psychiatric diagnostic evaluation with medical services (90792)
63%Service-mix similarityView profile →

Alvin De La Cruz Marquez, DNP

Nurse Practitioner (CMS) · Sacramento, CA

Shared published services
2 shared services · view billing descriptions
  • Psychotherapy with evaluation and management visit, 30 minutes (90833)
  • Psychiatric diagnostic evaluation with medical services (90792)
60%Service-mix similarityView profile →

Manvir K Pannu, PMHNP - BC

Nurse Practitioner (CMS) · Sacramento, CA

Shared published services
1 shared services · view billing descriptions
  • Psychotherapy with evaluation and management visit, 30 minutes (90833)
55%Service-mix similarityView profile →

Claudia Maria Martell, PMHNP-BC

Nurse Practitioner (CMS) · Sacramento, CA

Shared published services
2 shared services · view billing descriptions
  • Psychotherapy with evaluation and management visit, 30 minutes (90833)
  • Psychiatric diagnostic evaluation with medical services (90792)
51%Service-mix similarityView profile →

Isaac Osei Kuffour, NP

Specialty details in registry · Sacramento, CA

Shared published services
1 shared services · view billing descriptions
  • Psychiatric diagnostic evaluation with medical services (90792)
45%Service-mix similarityView profile →

Justin Tran, NP

Specialty details in registry · Sacramento, CA

Shared published services
1 shared services · view billing descriptions
  • Psychotherapy with evaluation and management visit, 30 minutes (90833)
39%Service-mix similarityView profile →

Yacharter Yang, PMHNP-BC, FNP-C

Nurse Practitioner (CMS) · Sacramento, CA

Shared published services
1 shared services · view billing descriptions
  • Psychiatric diagnostic evaluation with medical services (90792)
33%Service-mix similarityView profile →

Joshua Michael Burgett, NP

Nurse Practitioner (CMS) · Sacramento, CA

Shared published services
1 shared services · view billing descriptions
  • Psychiatric diagnostic evaluation with medical services (90792)
25%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.