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Compare the published Medicare service mix of Zhou Meng, MD, PHD with clinicians in the same registry specialty: Internal Medicine.

ROCKVILLE, MD · Exact areaEdit location

2024 published service data · 96 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Fernanda Porto Carreiro, M.D.

Internal Medicine · Rockville, MD

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)
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)
  • Insertion of needle into vein for collection of blood sample (36415)
89%Service-mix similarityView profile →

Laura Hanson Brown, MD

Internal Medicine · Rockville, MD

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)
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)
  • Insertion of needle into vein for collection of blood sample (36415)
80%Service-mix similarityView profile →

Melissa Ellen Blakeman, MD

Internal Medicine · Rockville, MD

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)
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)
  • Insertion of needle into vein for collection of blood sample (36415)
80%Service-mix similarityView profile →

Steven Peter Marshak, M.D.

Internal Medicine · Rockville, MD

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)
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)
  • Insertion of needle into vein for collection of blood sample (36415)
77%Service-mix similarityView profile →

Justin Hahn, DO

Internal Medicine · Rockville, MD

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)
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)
  • Insertion of needle into vein for collection of blood sample (36415)
75%Service-mix similarityView profile →

David Anthony Charles, M.D.

Internal Medicine · Rockville, MD

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)
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
71%Service-mix similarityView profile →

Daniel Ikjae Kim, M.D.

Internal Medicine · Rockville, MD

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)
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)
  • Insertion of needle into vein for collection of blood sample (36415)
71%Service-mix similarityView profile →

Michael Anthony Sauri, M.D., M.P.H.&T.M.

Internal Medicine · Rockville, MD

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)
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)
  • Insertion of needle into vein for collection of blood sample (36415)
69%Service-mix similarityView profile →

Janna Lachtchinina, M.D.

Internal Medicine · Rockville, MD

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)
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
69%Service-mix similarityView profile →

Petek Donmez, MD

Internal Medicine · Rockville, MD

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)
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)
  • Insertion of needle into vein for collection of blood sample (36415)
69%Service-mix similarityView profile →

Xiao Ming Zhou, M.D.

Internal Medicine · Rockville, MD

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)
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)
  • Insertion of needle into vein for collection of blood sample (36415)
68%Service-mix similarityView profile →

Wayne Lewis Meyer, MD

Internal Medicine · Rockville, MD

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)
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
68%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.