Michael H. Fretzin, MD
NPI 1134118987ActiveIndividual· Dermatology, Procedural Dermatology· Buffalo Grove, IL
Dermatology, Procedural Dermatology (MD) with Scott D Glazer MD SC, practicing in Buffalo Grove, Illinois. 1,759 Medicare patients in 2024, $643,997 paid; nearly all of their 1,575 Part D prescriptions were generic (90%). Abbvie Inc. was the largest of 18 companies reporting payments in 2025, $2,919 in all, mostly food and beverage. Lists Northwest Community Hospital 1 as a hospital affiliation.
Overview
| NPI | 1134118987 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Oct 14, 2005 |
| Last updated in NPPES | Dec 23, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Dermatology, Procedural Dermatology Primary | 207NS0135X | 036-102194 | IL |
| Dermatology | 207N00000X | 036102194 | IL |
| Dermatology, Clinical & Laboratory Dermatological Immunology | 207NI0002X | 036102194 | IL |
| Dermatology, Dermatopathology | 207ND0900X | 036102194 | IL |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Dermatology (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,759 |
|---|---|
| Services billed | 12,080 across 86 procedure codes |
| Paid by Medicare | $643,997 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,575 · 1,942 30-day fills |
|---|---|
| Patients | 717 |
| Total drug cost | $947,701 |
| Generic share | 90% of claims |
Education and affiliations
| Graduation year | 1996 |
|---|---|
| Medicare specialty | Dermatology |
Medical group
- Scott D Glazer MD SCArlington Heights, IL · 6 clinicians
Hospital affiliation
- Northwest Community Hospital 1Arlington Heights, IL
Industry payments (Open Payments)
- 2025$2,919 · 132 payments from 18 companies
- 2024$4,235 · 198 payments from 22 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $579.32 | 30 |
| Ucb, Inc. | $476.42 | 13 |
| Regeneron Healthcare Solutions, Inc. | $473.06 | 15 |
| Genzyme Corporation | $185.72 | 8 |
| Janssen Biotech, Inc. | $168.04 | 6 |
What the 2025 payments were for
- Food and Beverage$2,755 · 129 payments
- Education$163.82 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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