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Compare the published Medicare service mix of Rajat Walia, MD with clinicians in the same registry specialty: Pulmonary Disease (CMS).

PHOENIX, AZ · Exact areaEdit location

2024 published service data · 49 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Phillip I Menashe, M.D.

Critical Care (Intensivists) · Pulmonary Disease (CMS) · Phoenix, AZ

Shared published services
3 shared services · view billing descriptions
  • Test to measure expiratory airflow and volume (94010)
  • Test to examine how well the lungs exchange gases (94729)
  • Test for exercise-induced lung stress (94618)
65%Service-mix similarityView profile →

Brian David Porvin, DO

Critical Care (Intensivists) · Pulmonary Disease (CMS) · Phoenix, AZ

Shared published services
3 shared services · view billing descriptions
  • Test to measure expiratory airflow and volume (94010)
  • Test to examine how well the lungs exchange gases (94729)
  • Test for exercise-induced lung stress (94618)
64%Service-mix similarityView profile →

Tejas Elesh Shah, MD

Critical Care (Intensivists) · Pulmonary Disease (CMS) · Phoenix, AZ

Shared published services
3 shared services · view billing descriptions
  • Test to measure expiratory airflow and volume (94010)
  • Test to examine how well the lungs exchange gases (94729)
  • Test for exercise-induced lung stress (94618)
59%Service-mix similarityView profile →

Michael Zgoda, MD

Critical Care (Intensivists) · Internal Medicine · Pulmonary Disease · Sleep Medicine (CMS) · Phoenix, AZ

Shared published services
3 shared services · view billing descriptions
  • Test to measure expiratory airflow and volume (94010)
  • Test to examine how well the lungs exchange gases (94729)
  • Test for exercise-induced lung stress (94618)
58%Service-mix similarityView profile →

Karan Singh, MD

Specialty details in registry · Phoenix, AZ

Shared published services
3 shared services · view billing descriptions
  • Test to measure expiratory airflow and volume (94010)
  • Test to examine how well the lungs exchange gases (94729)
  • Test for exercise-induced lung stress (94618)
58%Service-mix similarityView profile →

David Michael Baratz, MD

Pulmonary Disease (CMS) · Phoenix, AZ

Shared published services
3 shared services · view billing descriptions
  • Test to measure expiratory airflow and volume (94010)
  • Test to examine how well the lungs exchange gases (94729)
  • Test for exercise-induced lung stress (94618)
57%Service-mix similarityView profile →

Stephanie Voorhees, M.D., MPH

Critical Care (Intensivists) · Internal Medicine · Pulmonary Disease (CMS) · Phoenix, AZ

Shared published services
3 shared services · view billing descriptions
  • Test to measure expiratory airflow and volume (94010)
  • Test to examine how well the lungs exchange gases (94729)
  • Test for exercise-induced lung stress (94618)
56%Service-mix similarityView profile →

Dominique Gagne, MD

Critical Care (Intensivists) · Pulmonary Disease (CMS) · Phoenix, AZ

Shared published services
3 shared services · view billing descriptions
  • Test to examine how well the lungs exchange gases (94729)
  • Test to determine lung volumes using sensors (94726)
  • Test to measure expiratory airflow and volume changes before and after medication administration (94060)
56%Service-mix similarityView profile →

Ramachandra R. Sista, MD

Pulmonary Disease (CMS) · Phoenix, AZ

Shared published services
3 shared services · view billing descriptions
  • Test to measure expiratory airflow and volume (94010)
  • Test to examine how well the lungs exchange gases (94729)
  • Test for exercise-induced lung stress (94618)
55%Service-mix similarityView profile →

John Nicewicz, MD

Internal Medicine · Pulmonary Disease (CMS) · Phoenix, AZ

Shared published services
3 shared services · view billing descriptions
  • Test to measure expiratory airflow and volume (94010)
  • Test to examine how well the lungs exchange gases (94729)
  • Test for exercise-induced lung stress (94618)
54%Service-mix similarityView profile →

Naomi Grace Habib, MD

Critical Care (Intensivists) · Pulmonary Disease (CMS) · Phoenix, AZ

Shared published services
3 shared services · view billing descriptions
  • Test to measure expiratory airflow and volume (94010)
  • Test to examine how well the lungs exchange gases (94729)
  • Test for exercise-induced lung stress (94618)
51%Service-mix similarityView profile →

Ahmad El Khatib

Critical Care (Intensivists) · Pulmonary Disease (CMS) · Phoenix, AZ

Shared published services
3 shared services · view billing descriptions
  • Test to measure expiratory airflow and volume (94010)
  • Test to examine how well the lungs exchange gases (94729)
  • Test to determine lung volumes using sensors (94726)
50%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.