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Compare the published Medicare service mix of William Zollinger, M.D. with clinicians in the same registry specialty: Radiation Oncology (CMS).

LA · Exact areaEdit location

2024 published service data · 110 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Felix Planche Bopp, M.D.

Plastic And Reconstructive Surgery (CMS) · Metairie, LA

Shared published services
3 shared services · view billing descriptions
  • Calculation of radiation therapy dose (77300)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Obtaining data needed to develop the optimal radiation treatment, 1 treatment area (77280)
30%Service-mix similarityView profile →

Paul Michael Davis, M.D.

Plastic And Reconstructive Surgery (CMS) · Shreveport, LA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
28%Service-mix similarityView profile →

John Troy Hill, M.D.

Psychiatry (CMS) · Alexandria, LA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
26%Service-mix similarityView profile →

Ravi Tandon, M.D.

Plastic And Reconstructive Surgery (CMS) · Metairie, LA

Shared published services
3 shared services · view billing descriptions
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
24%Service-mix similarityView profile →

Minerva Ramirez, MD

Obstetrics/Gynecology (CMS) · Leesville, LA

Shared published services
3 shared services · view billing descriptions
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
24%Service-mix similarityView profile →

Rudolph Daniel Jacob, M.D.

Allergy/Immunology · Maxillofacial Surgery · Otolaryngology · Plastic And Reconstructive Surgery (CMS) · Metairie, LA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
24%Service-mix similarityView profile →

Hilary Stephen Watson, M.D.

Urology (CMS) · Mandeville, LA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
23%Service-mix similarityView profile →

John Kyle Schwab, M.D.

Internal Medicine · Sleep Medicine (CMS) · Baton Rouge, LA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
21%Service-mix similarityView profile →

Lionel Guillaume, M.D.

Addiction Medicine · Psychiatry (CMS) · Bossier City, LA

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
21%Service-mix similarityView profile →

Ernesto A Kufoy, M.D

Internal Medicine · Nuclear Medicine · Ophthalmology (CMS) · Deridder, LA

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
20%Service-mix similarityView profile →

Alfred John Colfry, MD

Urology (CMS) · Metairie, LA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
20%Service-mix similarityView profile →

Halsey A Wyatt, MD, PHD

Specialty details in registry · New Orleans, LA

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
20%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.