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Compare the published Medicare service mix of Kathy Marren, GNP with clinicians in the same registry specialty: Specialty details in registry.

IL · Exact areaEdit location

2024 published service data · 139 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Elaina May Barraza, DNP

Nurse Practitioner (CMS) · Chicago, IL

Shared published services
3 shared services · view billing descriptions
  • Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)
  • Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes (99349)
  • Residence visit for established patient with low level of medical decision making, per day, if using time, at least 30 minutes (99348)
62%Service-mix similarityView profile →

Rhonda Rae Johnson, CNP

Nurse Practitioner (CMS) · Rockford, IL

Shared published services
2 shared services · view billing descriptions
  • Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)
  • Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes (99349)
56%Service-mix similarityView profile →

Elizabeth A Rochford, NP

Specialty details in registry · Burr Ridge, IL

Shared published services
2 shared services · view billing descriptions
  • Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)
  • Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes (99349)
54%Service-mix similarityView profile →

Patricia Braida, MSN, RN, AGPCNP-BC

Nurse Practitioner (CMS) · Carol Stream, IL

Shared published services
2 shared services · view billing descriptions
  • Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes (99349)
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)
53%Service-mix similarityView profile →

Shannon Lyn Bartolucci, NP

Nurse Practitioner (CMS) · Downers Grove, IL

Shared published services
3 shared services · view billing descriptions
  • Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)
  • Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes (99349)
  • Residence visit for established patient with low level of medical decision making, per day, if using time, at least 30 minutes (99348)
51%Service-mix similarityView profile →

Katelyn Nieman, NP

Nurse Practitioner (CMS) · Burr Ridge, IL

Shared published services
3 shared services · view billing descriptions
  • Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes (99349)
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)
  • Residence visit for established patient with low level of medical decision making, per day, if using time, at least 30 minutes (99348)
50%Service-mix similarityView profile →

Molly Engelkes

Nurse Practitioner (CMS) · Rockford, IL

Shared published services
2 shared services · view billing descriptions
  • Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes (99349)
  • Residence visit for established patient with low level of medical decision making, per day, if using time, at least 30 minutes (99348)
47%Service-mix similarityView profile →

Yoand Urquia Mora

Nurse Practitioner (CMS) · Chicago, IL

Shared published services
1 shared services · view billing descriptions
  • Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)
47%Service-mix similarityView profile →

Jennifer Guebert, NP

Nurse Practitioner (CMS) · Homewood, IL

Shared published services
2 shared services · view billing descriptions
  • Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes (99349)
  • Residence visit for established patient with low level of medical decision making, per day, if using time, at least 30 minutes (99348)
46%Service-mix similarityView profile →

Rhiannon L Richards, DNP, APRN, GNP- BC

Nurse Practitioner (CMS) · Mapleton, IL

Shared published services
3 shared services · view billing descriptions
  • Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)
  • Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes (99349)
  • Residence visit for established patient with low level of medical decision making, per day, if using time, at least 30 minutes (99348)
45%Service-mix similarityView profile →

Patricia Summers, MSN, AGPCNP-BC, APRN

Nurse Practitioner (CMS) · Burr Ridge, IL

Shared published services
2 shared services · view billing descriptions
  • Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes (99349)
  • Residence visit for established patient with low level of medical decision making, per day, if using time, at least 30 minutes (99348)
43%Service-mix similarityView profile →

Lenny Deguzman, APN

Specialty details in registry · Arlington Heights, IL

Shared published services
1 shared services · view billing descriptions
  • Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)
43%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.