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Compare the published Medicare service mix of Lucy Chang, MD with clinicians in the same registry specialty: Internal Medicine.

WASHINGTON, DC · Exact areaEdit location

2024 published service data · 419 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Brian P. Mcbreen, MD

Internal Medicine · Washington, DC

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)
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)
95%Service-mix similarityView profile →

Collin Dempsey Cullen, MD

Internal Medicine · Washington, DC

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)
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)
87%Service-mix similarityView profile →

Anokhi Shah, M.D.

Internal Medicine · Washington, DC

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)
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)
87%Service-mix similarityView profile →

Jessica L Osborn, MD

Internal Medicine · Washington, DC

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)
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)
86%Service-mix similarityView profile →

John Zachary Hughes, M.D./MPH

Internal Medicine · Washington, DC

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)
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)
85%Service-mix similarityView profile →

Helene Caron Freeman, M.D.

Internal Medicine · Washington, DC

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)
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)
85%Service-mix similarityView profile →

Vera L Sheen, MD

Internal Medicine · Washington, DC

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)
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)
84%Service-mix similarityView profile →

Elizabeth Selden, M.D.

Internal Medicine · Washington, DC

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)
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)
83%Service-mix similarityView profile →

Mariam Hassan Ayub, M.D.

Internal Medicine · Washington, DC

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)
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)
83%Service-mix similarityView profile →

Dennis Richard Murphy

Internal Medicine · Washington, DC

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)
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)
82%Service-mix similarityView profile →

Robert Kruger, MD

Internal Medicine · Washington, DC

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)
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
81%Service-mix similarityView profile →

Sirisha Manikonda Sastry, MD

Internal Medicine · Washington, DC

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)
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)
81%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.