Stephen Kopf, MD
NPI 1164401345 · Cardiovascular Disease Physician · Ossining, NY
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephen Kopf, MD is a Cardiovascular Disease Physician provider in Ossining, NY (NPI 1164401345).
Provider details
- NPI number
- 1164401345
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 128345-1 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
379 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 135 | $104 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 65 | $146 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 62 | $132 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 42 | $193 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 25 | $74 |
| Insertion of Needle Into Vein for Collection of Blood Sample |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 26 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 179 | 48 |
| Amlodipine Besylate | 95 | 27 |
| Losartan Potassium | 88 | 27 |
| Metoprolol Succinate | 79 | 21 |
| Rosuvastatin Calcium | 63 | 22 |
| Ezetimibe | 49 | 13 |
| Apixabanbrand: Eliquis |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-01-16
- Last updated
- 2007-07-08
Frequently asked questions
- What is Stephen Kopf's NPI number?
- Stephen Kopf's National Provider Identifier (NPI) is 1164401345, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Kopf's specialty?
- Stephen Kopf is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Stephen Kopf located?
- Stephen Kopf's practice location on file with NPPES is 43 South Highland Avenue, Ossining, NY 10562-5226.
- What is Stephen Kopf's phone number?
- The practice phone number listed in the NPPES registry for Stephen Kopf is (914) 941-0570.
- Does Stephen Kopf accept Medicare?
- Stephen Kopf is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephen Kopf's NPI active?
- Yes — Stephen Kopf's NPI (1164401345) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.