Alexandra Halkias
Family Nurse Practitioner · East Chicago, IN
Shared published services3 shared services · view billing descriptions
91%Service-mix similarity~4.1 milesView profile →
Similar work.
More providers to explore.
Compare the published Medicare service mix of Martha Bartkus, NP with clinicians in the same registry specialty: Family Nurse Practitioner.
HAMMOND, IN · 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 · 228 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.
Nicole Marie Newhouser, FNP-C
Family Nurse Practitioner · Munster, IN
Shared published services2 shared services · view billing descriptions
90%Service-mix similarity~2.2 milesView profile →
Colleen Costello Lee, FNP-BC
Family Nurse Practitioner · Munster, IN
Shared published services3 shared services · view billing descriptions
86%Service-mix similarity~2.2 milesView profile →
Sarah Nabors, FNP
Family Nurse Practitioner · Merrillville, IN
Shared published services3 shared services · view billing descriptions
84%Service-mix similarity~8.2 milesView profile →
Gregory Wade, FNP-C
Family Nurse Practitioner · Munster, IN
Shared published services2 shared services · view billing descriptions
84%Service-mix similarity~2.2 milesView profile →
Gerald Beck, FNP-BC
Family Nurse Practitioner · Munster, IN
Shared published services2 shared services · view billing descriptions
82%Service-mix similarity~2.2 milesView profile →
Danielle Keller
Family Nurse Practitioner · Munster, IN
Shared published services2 shared services · view billing descriptions
67%Service-mix similarity~2.2 milesView profile →
Julie Ann Norman, NP-C
Family Nurse Practitioner · Schererville, IN
Shared published services2 shared services · view billing descriptions
59%Service-mix similarity~5.8 milesView profile →
Angela M Purcell
Family Nurse Practitioner · Dyer, IN
Shared published services1 shared services · view billing descriptions
51%Service-mix similarity~6.1 milesView profile →
Joanne Weisz, FNP
Family Nurse Practitioner · Saint John, IN
Shared published services2 shared services · view billing descriptions
41%Service-mix similarity~8.7 milesView profile →
Johnnie Dominica Johnson, FNP
Family Nurse Practitioner · South Holland, IL
Shared published services1 shared services · view billing descriptions
29%Service-mix similarity~6.6 milesView profile →
Eva Cybulski, FNP-BC
Family Nurse Practitioner · Munster, IN
Shared published services1 shared services · view billing descriptions
27%Service-mix similarity~2.2 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.