Stefan Kantrowitz, M.D.
NPI 1518296078 · Addiction Medicine (Internal Medicine) Physician · Garden City, NY
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stefan Kantrowitz, M.D. is a Addiction Medicine (Internal Medicine) Physician provider in Garden City, NY (NPI 1518296078).
Provider details
- NPI number
- 1518296078
- Entity type
- Individual
- Primary specialty
- Addiction Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 260273 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
16 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Escitalopram Oxalate | 43 | 12 |
| Trazodone Hcl | 40 | — |
| Naltrexone Microspheresbrand: Vivitrol | 32 | — |
| Aripiprazole | 29 | — |
| Buprenorphine Hcl/Naloxone Hclbrand: Buprenorphine-Naloxone | 28 | — |
| Sertraline Hcl | 22 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$8,573 across 24 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
Registry dates
- Enumerated
- 2009-12-12
- Last updated
- 2022-12-06
- Certified
- 2022-12-06
Frequently asked questions
- What is Stefan Kantrowitz's NPI number?
- Stefan Kantrowitz's National Provider Identifier (NPI) is 1518296078, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stefan Kantrowitz's specialty?
- Stefan Kantrowitz is listed in the NPPES registry with a primary specialty of Addiction Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Stefan Kantrowitz located?
- Stefan Kantrowitz's practice location on file with NPPES is 111 7th St Unit 111, Garden City, NY 11530-5709.
- What is Stefan Kantrowitz's phone number?
- The practice phone number listed in the NPPES registry for Stefan Kantrowitz is (212) 203-9744.
- Does Stefan Kantrowitz accept Medicare?
- Stefan Kantrowitz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stefan Kantrowitz's NPI active?
- Yes — Stefan Kantrowitz's NPI (1518296078) is active in the NPPES registry as of the last update on 2022-12-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.