Jonathan Gamss, M.D.
NPI 1598922874 · Internal Medicine Physician · Mount Kisco, NY
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jonathan Gamss, M.D. is a Internal Medicine Physician provider in Mount Kisco, NY (NPI 1598922874).
Provider details
- NPI number
- 1598922874
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 25MA08623200 (NJ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
18 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
721 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Emergency Department Visit With High Level of Medical Decision Making99285 | 430 | $180 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 78 | $97 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 71 | $125 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 58 | $136 |
| Critical Care, First 30-74 Minutes99291 | 33 | $218 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 28 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Famotidine | 16 | 15 |
| Amlodipine Besylate | 13 | — |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 12 | — |
| Metoprolol Succinate | 12 | — |
| Azithromycin | 11 | 11 |
| Losartan Potassium | 11 | — |
| Cefdinir | 11 | 11 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$441 across 19 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (2)
- 391 E 149th St Ste 403Bronx, NY 10455-3907Phone: (718) 819-6144Fax: (718) 819-6145
- 3611 14th Ave Ste 550Brooklyn, NY 11218-3773Phone: (718) 819-6144Fax: (718) 819-6145
Registry dates
- Enumerated
- 2008-05-22
- Last updated
- 2025-07-29
- Certified
- 2025-07-29
Frequently asked questions
- What is Jonathan Gamss's NPI number?
- Jonathan Gamss's National Provider Identifier (NPI) is 1598922874, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jonathan Gamss's specialty?
- Jonathan Gamss is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Jonathan Gamss located?
- Jonathan Gamss's practice location on file with NPPES is 400 E Main St, Mount Kisco, NY 10549-3417.
- What is Jonathan Gamss's phone number?
- The practice phone number listed in the NPPES registry for Jonathan Gamss is (914) 666-1680.
- Does Jonathan Gamss accept Medicare?
- Jonathan Gamss is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jonathan Gamss's NPI active?
- Yes — Jonathan Gamss's NPI (1598922874) is active in the NPPES registry as of the last update on 2025-07-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.