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Compare the published Medicare service mix of Gena Han with clinicians in the same registry specialty: Critical Care (Intensivists) · Pulmonary Disease (CMS).

BURLINGTON, MA · Exact areaEdit location

2024 published service data · 20 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Anthony Charles Campagna, M.D.

Pulmonary Disease (CMS) · Burlington, MA

Shared published services
3 shared services · view billing descriptions
  • Test to examine how well the lungs exchange gases (94729)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • Critical care, first 30-74 minutes (99291)
86%Service-mix similarityView profile →

Cyrus Arash Kholdani, MD

Internal Medicine · Pulmonary Disease (CMS) · Burlington, MA

Shared published services
3 shared services · view billing descriptions
  • Test to examine how well the lungs exchange gases (94729)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • Critical care, first 30-74 minutes (99291)
76%Service-mix similarityView profile →

Akmal Sarwar, M.D.,

Pulmonary Disease · Sleep Medicine (CMS) · Burlington, MA

Shared published services
3 shared services · view billing descriptions
  • Test to examine how well the lungs exchange gases (94729)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • Critical care, first 30-74 minutes (99291)
76%Service-mix similarityView profile →

Luan M. Nghiem, MD

Critical Care (Intensivists) · Pulmonary Disease (CMS) · Burlington, MA

Shared published services
3 shared services · view billing descriptions
  • Test to examine how well the lungs exchange gases (94729)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • Critical care, first 30-74 minutes (99291)
74%Service-mix similarityView profile →

Jeffrey T Klenz, M.D.

Specialty details in registry · Burlington, MA

Shared published services
3 shared services · view billing descriptions
  • Test to examine how well the lungs exchange gases (94729)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • Critical care, first 30-74 minutes (99291)
73%Service-mix similarityView profile →

Fares Georges Mouchantaf, M.D.

Critical Care (Intensivists) · Pulmonary Disease (CMS) · Burlington, MA

Shared published services
3 shared services · view billing descriptions
  • Test to examine how well the lungs exchange gases (94729)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • Critical care, first 30-74 minutes (99291)
73%Service-mix similarityView profile →

Denis Y Lin, MD

Critical Care (Intensivists) · Pulmonary Disease (CMS) · Burlington, MA

Shared published services
3 shared services · view billing descriptions
  • Test to examine how well the lungs exchange gases (94729)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • Critical care, first 30-74 minutes (99291)
72%Service-mix similarityView profile →

Adam J. Smith, MD

Critical Care (Intensivists) · Internal Medicine · Pulmonary Disease (CMS) · Burlington, MA

Shared published services
3 shared services · view billing descriptions
  • Test to examine how well the lungs exchange gases (94729)
  • Critical care, first 30-74 minutes (99291)
  • Test to measure expiratory airflow and volume changes before and after medication administration (94060)
71%Service-mix similarityView profile →

Ghazwan Acash, M.D.

Critical Care (Intensivists) · Pulmonary Disease (CMS) · Burlington, MA

Shared published services
3 shared services · view billing descriptions
  • Test to examine how well the lungs exchange gases (94729)
  • Critical care, first 30-74 minutes (99291)
  • Test to measure expiratory airflow and volume changes before and after medication administration (94060)
69%Service-mix similarityView profile →

Matthew P. Gilman, MD

Critical Care (Intensivists) · Pulmonary Disease (CMS) · Burlington, MA

Shared published services
3 shared services · view billing descriptions
  • Test to examine how well the lungs exchange gases (94729)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • Critical care, first 30-74 minutes (99291)
66%Service-mix similarityView profile →

Sara Shadchehr, D.O.

Critical Care (Intensivists) · Internal Medicine · Pulmonary Disease (CMS) · Burlington, MA

Shared published services
3 shared services · view billing descriptions
  • Test to examine how well the lungs exchange gases (94729)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • Critical care, first 30-74 minutes (99291)
66%Service-mix similarityView profile →

Carla Lamb, M.D.

Critical Care (Intensivists) · Pulmonary Disease (CMS) · Burlington, MA

Shared published services
3 shared services · view billing descriptions
  • Test to examine how well the lungs exchange gases (94729)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • Critical care, first 30-74 minutes (99291)
63%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.