CHARLES JR. FREY (DO) – Allergy & Immunology Physician, NPI 1356321244
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Provider Addresses for CHARLES JR. FREY (DO)
OSF Medical Group - Specialty Clinic - Guilford Square, 698, Featherstone Road, Rockford, Winnebago County, Illinois, 61107, United States
ROCKFORD, IL 611076303
Phone: (815) 398-3277
Fax: (815) 484-7001
Mailing address matches the actual address.
NPPES updates history
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Medicare Enrollment & Revalidation
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Medicare Utilization (FFS)
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Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 95004 | Test for allergy using allergenic extract | 306 | 19 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 129 | 113 | $0 |
| 95115 | Professional service for single injection of allergen | 111 | 11 | $0 |
| 95165 | Professional service for preparation and provision of 1 or more antigens | 77 | 12 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 60 | 51 | $0 |
Insurance plans in this area (ZIP 61107)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| ANESTHESIOLOGY | IL | 95004 | Injection of allergenic extracts into skin, accessed through the skin | 1328 | 51 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Nurse Practitioner | IL | |
| - | IL | |
| - | TN | |
| - | IL | |
| - | IL | |
| - | IL | |
| - | IL | |
| - | IL | |
| Physician Assistant | MO | |
| - | IL |
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