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Compare the published Medicare service mix of Gregory Myrus Colodner, MD with clinicians in the same registry specialty: Pulmonary Disease (CMS).

CT · Exact areaEdit location

2024 published service data · 11 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Vivian Afia-Serwaa Asare, M.D.

Internal Medicine · Sleep Medicine (CMS) · North Haven, CT

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)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Sleep study in sleep lab (6 years or older) (95810)
78%Service-mix similarityView profile →

Christine H. Won, M.D.

Critical Care (Intensivists) · Pulmonary Disease · Sleep Medicine (CMS) · New Haven, CT

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)
  • Critical care, first 30-74 minutes (99291)
  • Sleep study in sleep lab (6 years or older) (95810)
77%Service-mix similarityView profile →

Jay D Kenkare, MD

Sleep Medicine (CMS) · Farmington, CT

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)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Sleep study in sleep lab (6 years or older) (95810)
74%Service-mix similarityView profile →

Parvati Singh, MD

Critical Care (Intensivists) · Sleep Medicine (CMS) · North Haven, CT

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)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Sleep study in sleep lab (6 years or older) (95810)
71%Service-mix similarityView profile →

James Christopher O'brien, M.D.

Internal Medicine · Pulmonary Disease (CMS) · Farmington, CT

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)
  • Sleep study including heart rate, breathing, airflow, and effort (95806)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
54%Service-mix similarityView profile →

Daniel P Mcnally, MD

Critical Care (Intensivists) · Pulmonary Disease (CMS) · Farmington, CT

Shared published services
3 shared services · view billing descriptions
  • Sleep study in sleep lab (6 years or older) (95810)
  • Sleep study including heart rate, breathing, airflow, and effort (95806)
  • Sleep study in sleep lab with continuous airway pressure (6 years or older) (95811)
45%Service-mix similarityView profile →

Keith R. Dixon, M.D.

Sleep Medicine (CMS) · Hartford, CT

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)
44%Service-mix similarityView profile →

Melissa Pauline Knauert, MD

Critical Care (Intensivists) · Emergency Medicine · Pulmonary Disease · Sleep Medicine (CMS) · New Haven, CT

Shared published services
2 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
44%Service-mix similarityView profile →

Mian Harris Iftikhar, M.D.

Internal Medicine · Sleep Medicine (CMS) · Farmington, CT

Shared published services
3 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
43%Service-mix similarityView profile →

Irina Petrenko, M.D.

Internal Medicine (CMS) · Middletown, CT

Shared published services
3 shared services · view billing descriptions
  • Sleep study in sleep lab (6 years or older) (95810)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Sleep study in sleep lab with continuous airway pressure (6 years or older) (95811)
40%Service-mix similarityView profile →

Richard M Shoup, MD

Pulmonary Disease (CMS) · Manchester, CT

Shared published services
2 shared services · view billing descriptions
  • Sleep study in sleep lab (6 years or older) (95810)
  • Sleep study in sleep lab with continuous airway pressure (6 years or older) (95811)
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.