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Compare the published Medicare service mix of Elizabeth Ellen Schack, NP with clinicians in the same registry specialty: Specialty details in registry.

NEW YORK, NY · Exact areaEdit location

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

Caroline Tyler Goldberg, AGPCNP-BC

Nurse Practitioner (CMS) · New York, NY

Shared published services
2 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)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
100%Service-mix similarityView profile →

Margaret R Nolan, DNP, GNP-C

Nurse Practitioner (CMS) · New York, NY

Shared published services
2 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)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
71%Service-mix similarityView profile →

Kannia Plancher, APRN

Nurse Practitioner (CMS) · New York, NY

Shared published services
2 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)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
67%Service-mix similarityView profile →

Oi Lee Tiffany Wong, MSN

Nurse Practitioner (CMS) · New York, NY

Shared published services
2 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)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
61%Service-mix similarityView profile →

Siobhan Sundel, GNP

Nurse Practitioner (CMS) · New York, NY

Shared published services
1 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)
59%Service-mix similarityView profile →

Dan Ai Liu, NP

Nurse Practitioner (CMS) · New York, NY

Shared published services
1 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)
55%Service-mix similarityView profile →

Francisco Diaz, NP

Nurse Practitioner (CMS) · New York, NY

Shared published services
1 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)
46%Service-mix similarityView profile →

Ariel F Silva, NP

Specialty details in registry · New York, NY

Shared published services
1 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)
44%Service-mix similarityView profile →

Kathryn Grace Mazzarella, NP

Nurse Practitioner (CMS) · New York, NY

Shared published services
1 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)
43%Service-mix similarityView profile →

Daniel Dwayne Billings, NP

Nurse Practitioner (CMS) · New York, NY

Shared published services
1 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)
42%Service-mix similarityView profile →

Sarah Griffith, NP

Nurse Practitioner (CMS) · New York, NY

Shared published services
1 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)
32%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.