Douglas Kahn, D.O.
NPI 1063431682ActiveIndividual· Internal Medicine, Pulmonary Disease· Danbury, CT
Internal Medicine, Pulmonary Disease (D.O.) in Danbury, Connecticut, trained at New York College of Osteo Medicine of New York Institute of Technology (class of 1990). Their prescriptions cost Medicare Part D more than their services did: $342,923 for 797 claims, against $128,652 paid for services in 2024. Harmony Biosciences LLC was the largest of 5 companies reporting payments in 2025, $297.38 in all, mostly food and beverage.
Overview
| NPI | 1063431682 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | No |
| NPI issued | Jul 18, 2006 |
| Last updated in NPPES | Jul 31, 2008 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Pulmonary Disease Primary | 207RP1001X | 040832 | CT |
| Internal Medicine, Critical Care Medicine | 207RC0200X | 040832 | CT |
| Internal Medicine, Sleep Medicine | 207RS0012X | 040832 | CT |
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 - Pulmonary Disease (CT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 583 |
|---|---|
| Services billed | 1,321 across 43 procedure codes |
| Paid by Medicare | $128,652 |
Part D prescriptions in 2024
| Prescriptions (claims) | 797 · 1,402 30-day fills |
|---|---|
| Patients | 279 |
| Total drug cost | $342,923 |
| Generic share | 53% of claims |
Education and affiliations
| Medical school | New York College of Osteo Medicine of New York Institute of Technology |
|---|---|
| Graduation year | 1990 |
| Medicare specialty | Pulmonary Disease |
| Telehealth | Offers telehealth |
Medical group
- Nuvance Health Medical Practice CT IncDanbury, CT · 747 clinicians
Hospital affiliations
- Danbury HospitalDanbury, CT
- Griffin HospitalDerby, CT
- Putnam Hospital CenterCarmel, NY
Other facilities
- Regional HospiceHospice · Danbury, CT
Industry payments (Open Payments)
- 2025$297.38 · 9 payments from 5 companies
- 2024$146.25 · 4 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Harmony Biosciences LLC | $132.01 | 2 |
| Grifols USA, LLC | $67.48 | 3 |
| Takeda Pharmaceuticals U.S.A., Inc. | $47.17 | 2 |
| Lilly USA, LLC | $27.54 | 1 |
| Glaxosmithkline, LLC. | $23.18 | 1 |
What the 2025 payments were for
- Food and Beverage$197.39 · 8 payments
- Education$99.99 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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