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Compare the published Medicare service mix of Nan Cheng, MD with clinicians in the same registry specialty: Neurology.

ORANGE, CA · Exact areaEdit location

2024 published service data · 24 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Crystal Jicha, MD

Neurology · Orange, CA

Shared published services
3 shared services · view billing descriptions
  • Injection of chemical for paralysis of facial and neck nerve muscles on both sides of face (64615)
  • Injection of anesthetic agent and/or steroid into upper neck and back of head nerve (64405)
  • Injection of anesthetic agent and/or steroid into face nerve (64400)
76%Service-mix similarityView profile →

Dallas Joseph De La Vara, MD

Neurology · Orange, CA

Shared published services
2 shared services · view billing descriptions
  • 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)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
53%Service-mix similarityView profile →

Mimi Sohn, MD

Neurology · Orange, CA

Shared published services
1 shared services · view billing descriptions
  • Injection of chemical for paralysis of facial and neck nerve muscles on both sides of face (64615)
45%Service-mix similarityView profile →

Anastasia P. Chumakova, MD

Neurology · Orange, CA

Shared published services
2 shared services · view billing descriptions
  • 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)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
33%Service-mix similarityView profile →

Sara Zarei, MD, PHD

Neurology · Orange, CA

Shared published services
1 shared services · view billing descriptions
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
28%Service-mix similarityView profile →

Sanaz Attaripour-Isfahani, M.D.

Neurology · Orange, CA

Shared published services
2 shared services · view billing descriptions
  • 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)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
27%Service-mix similarityView profile →

Nicolas Phielipp, M.D.

Neurology · Orange, CA

Shared published services
2 shared services · view billing descriptions
  • 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)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
25%Service-mix similarityView profile →

Michael Demetriou, MD

Neurology · Orange, CA

Shared published services
1 shared services · view billing descriptions
  • 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)
24%Service-mix similarityView profile →

Gaby T Thai, MD

Neurology · Orange, CA

Shared published services
1 shared services · view billing descriptions
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
17%Service-mix similarityView profile →

Dale V Di Stefano, M.D.

Neurology · Orange, CA

Shared published services
1 shared services · view billing descriptions
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
13%Service-mix similarityView profile →

Seyed Mohammad Hossein Shafie, MD PHD

Neurology · Orange, CA

Shared published services
1 shared services · view billing descriptions
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
13%Service-mix similarityView profile →

Carlen Amy Yuen, M.D.

Neurology · Orange, CA

Shared published services
1 shared services · view billing descriptions
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
10%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.