HCPList Know more before you call. About
A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

Compare the published Medicare service mix of Marlon Alando Clarke, M.D with clinicians in the same registry specialty: Family Medicine.

COLUMBIA, SC · Exact areaEdit location

2024 published service data · 111 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Jaswinder Tony Chauhan, MD

Family Medicine · Columbia, SC

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Detection test by immunoassay with direct visual observation for influenza virus (87804)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
58%Service-mix similarityView profile →

Jason K Barber, M.D.

Family Medicine · Columbia, SC

Shared published services
3 shared services · view billing descriptions
  • Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)
  • Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes (99305)
  • Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes (99349)
48%Service-mix similarityView profile →

Roger Kevin Griggs, MD

Family Medicine · Columbia, SC

Shared published services
3 shared services · view billing descriptions
  • Detection test by immunoassay with direct visual observation for influenza virus (87804)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Detection test by immunoassay with direct visual observation for streptococcus, group a (strep) (87880)
44%Service-mix similarityView profile →

Virginia Fuller Wright, MD

Family Medicine · Columbia, SC

Shared published services
3 shared services · view billing descriptions
  • 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 moderate level of decision making, if using time, 30 minutes or more (99214)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
41%Service-mix similarityView profile →

Teressa Mae Oldson, MD

Family Medicine · Columbia, SC

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Injection of drug or substance under skin or into muscle (96372)
  • X-ray of chest, 2 views (71046)
41%Service-mix similarityView profile →

Alexandra Stevens Witherspoon, MD

Family Medicine · Columbia, SC

Shared published services
3 shared services · view billing descriptions
  • 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 moderate level of decision making, if using time, 30 minutes or more (99214)
  • Injection of drug or substance under skin or into muscle (96372)
41%Service-mix similarityView profile →

Patricia Wilson Witherspoon, M.D.

Family Medicine · Columbia, SC

Shared published services
2 shared services · view billing descriptions
  • 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 moderate level of decision making, if using time, 30 minutes or more (99214)
39%Service-mix similarityView profile →

Andrew Thomas Martin, D.O.

Family Medicine · Columbia, SC

Shared published services
3 shared services · view billing descriptions
  • 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 moderate level of decision making, if using time, 30 minutes or more (99214)
  • X-ray of chest, 2 views (71046)
38%Service-mix similarityView profile →

Namrata M Shidhaye, MD

Family Medicine · Columbia, SC

Shared published services
3 shared services · view billing descriptions
  • 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 moderate level of decision making, if using time, 30 minutes or more (99214)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
38%Service-mix similarityView profile →

Robert Erik Hartvigsen, M.D.

Family Medicine · Columbia, SC

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Detection test by immunoassay with direct visual observation for influenza virus (87804)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
37%Service-mix similarityView profile →

Dion Anthony Foster, MD

Family Medicine · Columbia, SC

Shared published services
3 shared services · view billing descriptions
  • 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 moderate level of decision making, if using time, 30 minutes or more (99214)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
36%Service-mix similarityView profile →

Clayton Gregory Mazoue, M.D.

Family Medicine · Columbia, SC

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)
  • Injection of drug or substance under skin or into muscle (96372)
36%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.