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Compare the published Medicare service mix of Mark Armstrong, MD with clinicians in the same registry specialty: Anesthesiology.

TN · Exact areaEdit location

2024 published service data · 493 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Bhanu V. Kanakamedala, M.D.

Anesthesiology · Germantown, TN

Shared published services
3 shared services · view billing descriptions
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
  • Injection of anesthetic agent and/or steroid into other nerve or branch (64450)
  • Ultrasonic guidance for needle placement (76942)
72%Service-mix similarityView profile →

Joe Randall Mcveigh, M.D.

Anesthesiology · Johnson City, TN

Shared published services
3 shared services · view billing descriptions
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
  • Injection of anesthetic agent and/or steroid into other nerve or branch (64450)
  • Anesthesia for procedure on nerves, muscles, tendons, and tissue of forearm, wrist, and hand (01810)
62%Service-mix similarityView profile →

Sarah Elizabeth Brown, DO

Anesthesiology · Nashville, TN

Shared published services
3 shared services · view billing descriptions
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
  • Injection of anesthetic agent and/or steroid into other nerve or branch (64450)
  • Ultrasonic guidance for needle placement (76942)
62%Service-mix similarityView profile →

Johnathan Matthew Mauldin, M.D.

Anesthesiology · Chattanooga, TN

Shared published services
3 shared services · view billing descriptions
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
  • Injection of anesthetic agent and/or steroid into other nerve or branch (64450)
  • Ultrasonic guidance for needle placement (76942)
62%Service-mix similarityView profile →

Candace A Robertson, MD

Anesthesiology · Knoxville, TN

Shared published services
3 shared services · view billing descriptions
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
  • Injection of anesthetic agent and/or steroid into other nerve or branch (64450)
  • Ultrasonic guidance for needle placement (76942)
60%Service-mix similarityView profile →

Jenna Mckinnie Hester, M.D.

Anesthesiology · Memphis, TN

Shared published services
3 shared services · view billing descriptions
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
  • Injection of anesthetic agent and/or steroid into other nerve or branch (64450)
  • Ultrasonic guidance for needle placement (76942)
58%Service-mix similarityView profile →

Stephen K Evans, MD

Anesthesiology · Bristol, TN

Shared published services
3 shared services · view billing descriptions
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
  • Injection of anesthetic agent and/or steroid into other nerve or branch (64450)
  • Ultrasonic guidance for needle placement (76942)
57%Service-mix similarityView profile →

Staci D. Ridner, MD

Anesthesiology · Chattanooga, TN

Shared published services
3 shared services · view billing descriptions
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
  • Injection of anesthetic agent and/or steroid into other nerve or branch (64450)
  • Ultrasonic guidance for needle placement (76942)
57%Service-mix similarityView profile →

Ezekiel Tarrant, MD

Anesthesiology · Chattanooga, TN

Shared published services
2 shared services · view billing descriptions
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
  • Ultrasonic guidance for needle placement (76942)
57%Service-mix similarityView profile →

Sarah Eisen Ellis, MD

Anesthesiology · Clarksville, TN

Shared published services
2 shared services · view billing descriptions
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
  • Ultrasonic guidance for needle placement (76942)
56%Service-mix similarityView profile →

David Paul May, MD

Anesthesiology · Elizabethton, TN

Shared published services
3 shared services · view billing descriptions
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
  • Injection of anesthetic agent and/or steroid into other nerve or branch (64450)
  • Anesthesia for procedure on nerves, muscles, tendons, and tissue of forearm, wrist, and hand (01810)
56%Service-mix similarityView profile →

Jerry W. Jones, MD

Anesthesiology · Jackson, TN

Shared published services
3 shared services · view billing descriptions
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
  • Injection of anesthetic agent and/or steroid into other nerve or branch (64450)
  • Ultrasonic guidance for needle placement (76942)
56%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.