DR. NICHOLAS ROBERT RYDZEWSKI (MD) – Radiation Oncology Physician, NPI 1568855161

DR. NICHOLAS ROBERT RYDZEWSKI (MD) is a healthcare provider. based in Rockford, Illinois. specializing in Radiation Oncology Physician. They hold the professional credentials MD. They hold a License No. 036153609 (IL). The NPI Number for DR. NICHOLAS ROBERT RYDZEWSKI (MD) is 1568855161

Main info

Male
Sole Proprietor
Name
DR. NICHOLAS ROBERT RYDZEWSKI (MD)
NPI
1568855161
Phone
(815) 971-6188
Address
2400 N Rockton Ave
Enumeration Date
6 March 2015
Last Update Date
28 September 2020
Data current as of
20 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience69
Completeness75
Years active:11State licenses:3Digital endpointsOther names

Provider Addresses for DR. NICHOLAS ROBERT RYDZEWSKI (MD)

  • 2400 N Rockton Ave

    Rockford, IL 611033655

    Phone: (815) 971-6188

    Fax: (815) 968-9677

    Type: Location

  • 8201 E Riverside Blvd

    Rockford, IL 611142300

    Phone: (815) 971-7000

    Type: Location

  • 1000 MINERAL POINT AVE

    JANESVILLE, WI 535482982

    Phone: (608) 756-6731

    Fax: (608) 756-6013

    Type: Mailing

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

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Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

No Medicare enrollment or revalidation data available for this provider in our database.

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Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 61103)

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Reviews

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Frequently asked questions

How do I look up DR. NICHOLAS ROBERT RYDZEWSKI (MD) by NPI?
Use NPI 1568855161 when you need to reference DR. NICHOLAS ROBERT RYDZEWSKI (MD) in forms, claims, or directories.
Is DR. NICHOLAS ROBERT RYDZEWSKI (MD) active in the national directory?
DR. NICHOLAS ROBERT RYDZEWSKI (MD)'s public NPI profile is in an active state.
What does DR. NICHOLAS ROBERT RYDZEWSKI (MD) treat or focus on?
Patients typically see DR. NICHOLAS ROBERT RYDZEWSKI (MD) under the specialty Radiation Oncology Physician. Clinical services aligned with this taxonomy classification.
What location shows for DR. NICHOLAS ROBERT RYDZEWSKI (MD)?
We surface Rockford, Illinois for DR. NICHOLAS ROBERT RYDZEWSKI (MD) based on available NPPES addresses.
Is DR. NICHOLAS ROBERT RYDZEWSKI (MD) a real provider?
This page reflects official NPPES data for NPI 1568855161. Always confirm identity and privileges with the practice and licensing boards.

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