Steven Greenstein, M.D.
NPI 1417362245 · Cardiovascular Disease Physician · Oceanside, NY
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Steven Greenstein, M.D. is a Cardiovascular Disease Physician provider in Oceanside, NY (NPI 1417362245).
Provider details
- NPI number
- 1417362245
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 293863 (NY)
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
11 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
3,998 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 1,752 | $131 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 953 | $191 |
| Critical Care, First 30-74 Minutes99291 | 328 | $237 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 171 | $87 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 136 | $108 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$633 across 25 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)
- 451 Clarkson AveBrooklyn, NY 11203-2054Phone: (718) 245-3131
- 58 Auerbach LnLawrence, NY 11559-2526Phone: (516) 574-9845
Registry dates
- Enumerated
- 2014-07-01
- Last updated
- 2022-08-08
- Certified
- 2022-08-08
Frequently asked questions
- What is Steven Greenstein's NPI number?
- Steven Greenstein's National Provider Identifier (NPI) is 1417362245, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Steven Greenstein's specialty?
- Steven Greenstein is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Steven Greenstein located?
- Steven Greenstein's practice location on file with NPPES is 1 Healthy Way, Oceanside, NY 11572-1551.
- What is Steven Greenstein's phone number?
- The practice phone number listed in the NPPES registry for Steven Greenstein is (516) 632-3000.
- Does Steven Greenstein accept Medicare?
- Steven Greenstein is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Steven Greenstein's NPI active?
- Yes — Steven Greenstein's NPI (1417362245) is active in the NPPES registry as of the last update on 2022-08-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.