Kammi Grayson, DO
NPI 1376919589ActiveIndividual· Internal Medicine, Sleep Medicine· New York, NY
Internal Medicine, Sleep Medicine (DO) with New York University, practicing in New York, New York. 171 Medicare patients in 2024, $42,994 paid; nearly all of their 151 Part D prescriptions were generic (95%). Harmony Biosciences LLC was the largest of 10 companies reporting payments in 2025, $2,075 in all, mostly food and beverage. Lists NYU Langone Hospitals as a hospital affiliation.
Overview
| NPI | 1376919589 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | Aug 11, 2015 |
| Last updated in NPPES | May 3, 2023 |
| Certified by provider | May 3, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Sleep Medicine Primary | 207RS0012X | 314059 | NY |
| Internal Medicine, Sleep Medicine | 207RS0012X | 66848 | MN |
| Psychiatry & Neurology, Neurology | 2084N0400X | 66848 | MN |
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 - Sleep Medicine (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 171 |
|---|---|
| Services billed | 257 across 11 procedure codes |
| Paid by Medicare | $42,994 |
Part D prescriptions in 2024
| Prescriptions (claims) | 151 · 191 30-day fills |
|---|---|
| Patients | 40 |
| Total drug cost | $36,930 |
| Generic share | 95% of claims |
Education and affiliations
| Graduation year | 2016 |
|---|---|
| Medicare specialty | Sleep Medicine |
| Telehealth | Offers telehealth |
Medical group
- New York UniversityNew York, NY · 6,134 clinicians
Hospital affiliation
- NYU Langone HospitalsNew York, NY
Industry payments (Open Payments)
- 2025$2,075 · 81 payments from 10 companies
- 2024$2,908 · 87 payments from 12 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Harmony Biosciences LLC | $582.07 | 40 |
| Jazz Pharmaceuticals Inc. | $412.16 | 9 |
| Avadel Cns Pharmaceuticals, LLC | $294.91 | 7 |
| Lilly USA, LLC | $227.96 | 8 |
| Axsome Therapeutics, Inc. | $173.51 | 5 |
What the 2025 payments were for
- Food and Beverage$2,075 · 81 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Sleep Medicine providers in New York
- 1083684708
- 1225318397
- 1235387119
- 1275558405
- 1427048792
- 1568857779
- 1598023822
- 1639316623
- 1821082058
- 1922322817
- 1962936013
- 1104212463
All 28 Internal Medicine, Sleep Medicine providers in New York · All Internal Medicine, Sleep Medicine providers in New York