Are you Margaret C. Keller, APN-CNP? This profile is yours to edit: update your address, phone, photo and services.
Edit this profileListed in the NPI registry as a nurse practitioner, Margaret C. Keller, APN-CNP practices in Glenview, IL. Margaret is also listed as specializing in registered nurse. Medicare claims data shows Margaret provided 213 services to 132 patients. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more and biopsy of bone marrow. NPI 1063742963 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
2180 PFINGSTEN RD
Glenview, IL 60026
213 services · 132 patients · 2 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Biopsy of bone marrow | Procedure | 38221 |
19 | Too few peers to compare |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
194 | More often than most peers in Nurse Practitioner |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Margaret C. Keller is a nurse practitioner in Glenview, IL. That is the designation recorded for this NPI in the federal registry.
NPI registry
Margaret C. Keller is listed at 2180 Pfingsten Rd, Glenview, IL 60026. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (847) 503-1000. Contact the office directly to confirm availability and scheduling.
NPI registry
Margaret C. Keller's National Provider Identifier is 1063742963. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Margaret C. Keller attended Other, graduating in 2006. This comes from the CMS National Downloadable File.
CMS public data
Margaret C. Keller has 20 years experience. Calculated from a graduation year of 2006, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Margaret C. Keller performs procedures including biopsy of bone marrow, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Margaret C. Keller. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.
A GigHz company · Founder: Pouyan Golshani, MD