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Compare the published Medicare service mix of Robert Sterling Hollabaugh, M.D. with clinicians in the same registry specialty: Urology (CMS).

SOUTHAVEN, MS · 25 milesEdit location
Within 25 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 · 27 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Paul Richard Eber, M.D.

Urology (CMS) · Germantown, TN

Shared published services
3 shared services · view billing descriptions
  • Injection, medroxyprogesterone acetate, 1 mg (J1050)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Creatinine level to test for kidney function or muscle injury (82570)
92%Service-mix similarity~12.4 milesView profile →

Ravi Dinesh Chauhan, M.D.

Urology (CMS) · Germantown, TN

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)
  • Creatinine level to test for kidney function or muscle injury (82570)
  • Manual urinalysis test with examination using microscope, automated (81001)
89%Service-mix similarity~12.4 milesView profile →

Thomas Berkley Shelton, M.D.

Urology (CMS) · Germantown, TN

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)
  • Creatinine level to test for kidney function or muscle injury (82570)
  • Manual urinalysis test with examination using microscope, automated (81001)
88%Service-mix similarity~12.4 milesView profile →

Patrick J Zielie, M.D.

Urology (CMS) · Germantown, TN

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)
  • Creatinine level to test for kidney function or muscle injury (82570)
  • Manual urinalysis test with examination using microscope, automated (81001)
87%Service-mix similarity~12.4 milesView profile →

Michael Granieri, M.D.

Urology (CMS) · Germantown, TN

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)
  • Creatinine level to test for kidney function or muscle injury (82570)
  • Manual urinalysis test with examination using microscope, automated (81001)
87%Service-mix similarity~12.4 milesView profile →

John Robert Adams, M.D.

Urology (CMS) · Germantown, TN

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)
  • Creatinine level to test for kidney function or muscle injury (82570)
  • Manual urinalysis test with examination using microscope, automated (81001)
86%Service-mix similarity~12.4 milesView profile →

Adam Frederick Stewart, M.D.

Urology (CMS) · Germantown, TN

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)
  • Creatinine level to test for kidney function or muscle injury (82570)
  • Manual urinalysis test with examination using microscope, automated (81001)
83%Service-mix similarity~12.4 milesView profile →

Matthew Earl Sims, M.D.

Urology (CMS) · Germantown, TN

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)
  • Creatinine level to test for kidney function or muscle injury (82570)
  • Manual urinalysis test with examination using microscope, automated (81001)
71%Service-mix similarity~12.4 milesView profile →

Leslie R Mcgowan, MD

Urology (CMS) · Memphis, TN

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)
  • Creatinine level to test for kidney function or muscle injury (82570)
  • Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)
54%Service-mix similarity~12.3 milesView profile →

Walter Rayford, M.D., PHD., FACS

Urology (CMS) · Memphis, TN

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)
  • Creatinine level to test for kidney function or muscle injury (82570)
  • Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)
53%Service-mix similarity~12.3 milesView profile →

Mark D Greenberger, M.D.

Urology (CMS) · Memphis, TN

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)
  • Creatinine level to test for kidney function or muscle injury (82570)
  • Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)
51%Service-mix similarity~12.3 milesView profile →

Zachary Corr, M.D.

Urology (CMS) · Germantown, TN

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)
  • Creatinine level to test for kidney function or muscle injury (82570)
  • Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)
51%Service-mix similarity~12.4 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.