Jonathan Gamss, M.D.
NPI 1598922874ActiveIndividual· Internal Medicine· Mount Kisco, NY
Internal Medicine (M.D.) with Rwjbh Emergency Medicine Associates, LLC and 1 other group, practicing in Mount Kisco, New York. 643 Medicare patients in 2024, $92,984 paid; nearly all of their 258 Part D prescriptions were generic (94%). Abbvie Inc. was the largest of 3 companies reporting payments in 2025, $174.02 in all, mostly food and beverage. Lists Clara Maass Medical Center as a hospital affiliation.
Overview
| NPI | 1598922874 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 22, 2008 |
| Last updated in NPPES | Oct 21, 2026 |
| Certified by provider | Oct 21, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 246486 | NY |
| Internal Medicine | 207R00000X | DR.0076561 | CO |
| Emergency Medicine | 207P00000X | 25MA08623200 | NJ |
| Internal Medicine | 207R00000X | ME178297 | FL |
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 - Internal Medicine (CO); Practitioner - Internal Medicine (FL); Practitioner - Emergency Medicine (NJ); Practitioner - Emergency Medicine (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 643 |
|---|---|
| Services billed | 855 across 58 procedure codes |
| Paid by Medicare | $92,984 |
Part D prescriptions in 2024
| Prescriptions (claims) | 258 · 299 30-day fills |
|---|---|
| Patients | 123 |
| Total drug cost | $4,765 |
| Generic share | 94% of claims |
Education and affiliations
| Graduation year | 2004 |
|---|---|
| Medicare specialty | Emergency Medicine |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- Rwjbh Emergency Medicine Associates, LLCJersey City, NJ · 848 clinicians
- Vladimir Zelenko MD PCMonroe, NY · 12 clinicians
Hospital affiliation
- Clara Maass Medical CenterBelleville, NJ
Industry payments (Open Payments)
- 2025$174.02 · 9 payments from 3 companies
- 2024$441.11 · 19 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $130.24 | 7 |
| Csl Behring | $25.90 | 1 |
| Pfizer Inc. | $17.88 | 1 |
What the 2025 payments were for
- Food and Beverage$174.02 · 9 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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