Joan Guitart, MD
NPI 1225074727ActiveIndividual· Dermatology, Dermatopathology· Chicago, IL
Dermatology, Dermatopathology (MD) with Northwestern Medical Faculty Foundation, practicing in Chicago, Illinois. Their prescriptions cost Medicare Part D more than their services did: $621,760 for 709 claims, against $369,357 paid for services in 2024. Kyowa Kirin, Inc. was the largest of 2 companies reporting payments in 2025, $86.06 in all, mostly food and beverage. Lists Northwestern Lake Forest Hospital and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1225074727 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 22, 2006 |
| Last updated in NPPES | Feb 22, 2010 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Dermatology, Dermatopathology Primary | 207ND0900X | 036072199 | 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 | 2,236 |
|---|---|
| Services billed | 5,619 across 31 procedure codes |
| Paid by Medicare | $369,357 |
Part D prescriptions in 2024
| Prescriptions (claims) | 709 · 931 30-day fills |
|---|---|
| Patients | 110 |
| Total drug cost | $621,760 |
| Generic share | 86% of claims |
Education and affiliations
| Graduation year | 1983 |
|---|---|
| Medicare specialty | Dermatology |
Medical group
- Northwestern Medical Faculty FoundationChicago, IL · 4,503 clinicians
Hospital affiliations
- Northwestern Lake Forest HospitalLake Forest, IL
- Northwestern Medicine Central Dupage HospitalWinfield, IL
- Northwestern Memorial HospitalChicago, IL
- Palos Community HospitalPalos Heights, IL
Industry payments (Open Payments)
- 2025$86.06 · 2 payments from 2 companies
- 2024$176.11 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Kyowa Kirin, Inc. | $49.68 | 1 |
| Genzyme Corporation | $36.38 | 1 |
What the 2025 payments were for
- Food and Beverage$86.06 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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