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FREDERICK DIETZ MD
NPI 1235249426
Internal Medicine - Rheumatology in Rockford, IL

Active since August 30, 2006PECOS Enrolled
2300 N ROCKTON AVE, ROCKFORD, IL 61103(815) 971-2000 Get Directions Write a Review

NPPES record last updated: February 2, 2010. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Frederick Dietz Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

FREDERICK DIETZ MD (NPI 1235249426) is an individual rheumatology provider in Rockford, Illinois, licensed in Illinois (036-050026) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1235249426
Entity TypeIndividualMale
Primary Taxonomy207RR0500X
Provider Legal NameFREDERICK DIETZCredential: MD
Location Address2300 N ROCKTON AVERockford, IL 61103-3619
Mailing Address2300 N Rockton AveRockford, IL 61103-3619 · (815) 971-2000
Phone(815) 971-2000
Sole ProprietorNo
Enumeration DateAugust 30, 2006
Last NPPES UpdateFebruary 2, 2010
✔ NPI 1235249426 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians
Taxonomy Code207RR0500X
License✔ Licensed in IL · 036-050026
Definition
An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.
2300 N ROCKTON AVE, Rockford, IL 61103
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Other Identifiers 3

Medicare UPINC37275IL
Medicare PIN207880IL
Medicaid036050026IL

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Frederick Dietz Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 61103 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$127.46 typical visit price
range $54.80 – $168.44
Typical copayment $31.86 (range $13.70 – $42.11)
Most-billed visit code 99204
Established Patient
$97.25 typical visit price
range $17.16 – $136.56
Typical copayment $24.31 (range $4.29 – $34.14)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JENNIFER DAVIDSON OT
Occupational Therapist
2300 N ROCKTON AVE
ROCKFORD, IL 61103
Winnebago County (815) 971-2000
ROBIN R. HOVIS MD
Internal Medicine (Rheumatology)
2300 N ROCKTON AVE
ROCKFORD, IL 61103
Winnebago County (815) 971-2000
DR. JOSEPH R WHITELEY M.D.
Surgery (Plastic and Reconstructive Surgery)
2300 N ROCKTON AVE, STE 304
ROCKFORD, IL 61103
Winnebago County (815) 964-3333
ROCKFORD HEALTH PHYSICIANS
Clinic/Center (Multi-Specialty)
2300 N ROCKTON AVE
ROCKFORD, IL 61103
Winnebago County (815) 971-2000
MICHELLE KLUNK PTA
Physical Therapy Assistant
2300 N ROCKTON AVE
ROCKFORD, IL 61103
Winnebago County (815) 971-2000
DR. SARAH M. BEAVES MD
Pediatrics
2300 N ROCKTON AVE
ROCKFORD, IL 61103
Winnebago County (815) 971-2000
ERIKA J OLTMANNS RD, LDN
Dietitian, Registered
2300 N ROCKTON AVE
ROCKFORD, IL 61103
Winnebago County (815) 971-2511
MRS. JESSICA A BARR APRN,BC
Nurse Practitioner (Family)
2300 N ROCKTON AVE, ROCKFORD HEALTH PHYSICIANS
ROCKFORD, IL 61103
Winnebago County (815) 971-2000

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Frederick Dietz's NPI number?

The NPI number for Frederick Dietz is 1235249426. It was assigned to this individual provider in the NPPES registry on August 30, 2006.

Where is Frederick Dietz located?

Frederick Dietz practices at 2300 N Rockton Ave, Rockford, IL 61103. The listed phone number is (815) 971-2000.

What is Frederick Dietz's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

Is Frederick Dietz enrolled in Medicare?

Yes. Frederick Dietz is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Frederick Dietz was last updated on February 2, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.