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Compare the published Medicare service mix of Tiffany Eileen Groen, D.O. with clinicians in the same registry specialty: Family Medicine.

NEW LENOX, IL · Exact areaEdit location

2024 published service data · 13 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Omar Akhtar, D.O.

Family Medicine · New Lenox, IL

Shared published services
3 shared services · view billing descriptions
  • Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month (99490)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Advance care planning, first 30 minutes (99497)
90%Service-mix similarityView profile →

David Michael Calimag, D.O.

Family Medicine · New Lenox, IL

Shared published services
3 shared services · view billing descriptions
  • Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month (99490)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Advance care planning, first 30 minutes (99497)
81%Service-mix similarityView profile →

Mark Halger Christensen, D.O.

Family Medicine · New Lenox, IL

Shared published services
3 shared services · view billing descriptions
  • Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month (99490)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Advance care planning, first 30 minutes (99497)
79%Service-mix similarityView profile →

Thomas S Lee, M.D.

Family Medicine · New Lenox, IL

Shared published services
3 shared services · view billing descriptions
  • Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month (99490)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Advance care planning, first 30 minutes (99497)
76%Service-mix similarityView profile →

Farooq Mohammed Hussain, MD

Family Medicine · New Lenox, IL

Shared published services
3 shared services · view billing descriptions
  • Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month (99490)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Advance care planning, first 30 minutes (99497)
75%Service-mix similarityView profile →

Anna Melissa De Jesus Pacis, MD

Family Medicine · New Lenox, IL

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)
  • Advance care planning, first 30 minutes (99497)
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)
63%Service-mix similarityView profile →

Kerry Ann Marcheschi, M.D.

Family Medicine · New Lenox, IL

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)
  • Hemoglobin a1c level (83036)
62%Service-mix similarityView profile →

Jitinder Singh, D.O.

Family Medicine · New Lenox, IL

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)
  • 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)
56%Service-mix similarityView profile →

Delaney Koehler, M.D.

Family Medicine · New Lenox, IL

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)
  • Hemoglobin a1c level (83036)
51%Service-mix similarityView profile →

Jerome T Daly, D.O.

Family Medicine · New Lenox, IL

Shared published services
3 shared services · view billing descriptions
  • Advance care planning, first 30 minutes (99497)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
42%Service-mix similarityView profile →

Yousuf Mohammed, M.D.

Family Medicine · New Lenox, IL

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)
40%Service-mix similarityView profile →

Deirdra Greathouse-Williams, MD

Family Medicine · New Lenox, IL

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)
37%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.