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Compare the published Medicare service mix of Mark Christopher Pillitteri, DO with clinicians in the same registry specialty: Obstetrics & Gynecology.

DEER PARK, NY · 10 milesEdit location
Within 10 miles · Approximate ZIP-area distance

Approximate straight-line distances between ZIP-area centers; a city search starts from the average of its ZIP centers. Uses the primary reported practice ZIP, not an exact office address or driving distance. Records without matched coordinates are excluded. How distance works

2024 published service data · 66 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Katharine Frost, MD

Obstetrics & Gynecology · Greenlawn, NY

Shared published services
3 shared services · view billing descriptions
  • Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory (Q0091)
99%Service-mix similarity~7.4 milesView profile →

Ava Regina Sierecki, MD

Obstetrics & Gynecology · Huntington, NY

Shared published services
3 shared services · view billing descriptions
  • Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory (Q0091)
98%Service-mix similarity~8.7 milesView profile →

Virginia Elizabeth Mclean, M. D.

Obstetrics & Gynecology · Brentwood, NY

Shared published services
3 shared services · view billing descriptions
  • Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory (Q0091)
92%Service-mix similarity~4.2 milesView profile →

Laura Ann Falkowski, D.O.

Obstetrics & Gynecology · West Islip, NY

Shared published services
3 shared services · view billing descriptions
  • Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory (Q0091)
92%Service-mix similarity~3.5 milesView profile →

Paulina Guta, D.O.

Obstetrics & Gynecology · East Islip, NY

Shared published services
3 shared services · view billing descriptions
  • Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory (Q0091)
92%Service-mix similarity~7.9 milesView profile →

Katherine Rimpel

Obstetrics & Gynecology · Bay Shore, NY

Shared published services
3 shared services · view billing descriptions
  • Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory (Q0091)
92%Service-mix similarity~5.7 milesView profile →

Gerald M. Siegel, MD

Obstetrics & Gynecology · Huntington Station, NY

Shared published services
3 shared services · view billing descriptions
  • Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory (Q0091)
92%Service-mix similarity~4.3 milesView profile →

Emily Gubert, MD

Obstetrics & Gynecology · East Islip, NY

Shared published services
3 shared services · view billing descriptions
  • Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory (Q0091)
91%Service-mix similarity~7.9 milesView profile →

William Chukwukeziri Onyebeke, MD

Obstetrics & Gynecology · Bay Shore, NY

Shared published services
3 shared services · view billing descriptions
  • Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory (Q0091)
87%Service-mix similarity~5.7 milesView profile →

Margarita Jurak, M.D.

Obstetrics & Gynecology · West Islip, NY

Shared published services
3 shared services · view billing descriptions
  • Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory (Q0091)
85%Service-mix similarity~3.5 milesView profile →

Joseph Livoti, M.D.

Obstetrics & Gynecology · West Islip, NY

Shared published services
3 shared services · view billing descriptions
  • Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory (Q0091)
85%Service-mix similarity~3.5 milesView profile →

Donna Marie Schneider, M.D.

Obstetrics & Gynecology · Huntington, NY

Shared published services
3 shared services · view billing descriptions
  • Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory (Q0091)
83%Service-mix similarity~8.7 milesView 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 approximate distance 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.