Stephen Bernhardt, M.D.
NPI 1851492904 · Nephrology Physician · Bay Shore, NY
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephen Bernhardt, M.D. is a Nephrology Physician provider in Bay Shore, NY (NPI 1851492904).
Provider details
- NPI number
- 1851492904
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 204772 (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 tenure28% of score
19 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
3,338 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 1,314 | $93 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 590 | $154 |
| Hemodialysis Procedure With Physician Evaluation90935 | 334 | $83 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 290 | $156 |
| Dialysis Services, 4 Or More Physician Visits Per Month (20 Years Or Older)90960 | 289 | $397 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 29 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Sevelamer Carbonate | 97 | 33 |
| Sucroferric Oxyhydroxidebrand: Velphoro | 60 | 20 |
| Amlodipine Besylate | 59 | 26 |
| Dextrose 5 % and 0.9 % Naclbrand: Dextrose 5%-0.9% Nacl | 28 | — |
| Losartan Potassium | 28 | 11 |
| Torsemide | 27 | 15 |
| Calcium Acetate | 27 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-25
- Last updated
- 2009-11-24
Frequently asked questions
- What is Stephen Bernhardt's NPI number?
- Stephen Bernhardt's National Provider Identifier (NPI) is 1851492904, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Bernhardt's specialty?
- Stephen Bernhardt is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Stephen Bernhardt located?
- Stephen Bernhardt's practice location on file with NPPES is 340 Howells Rd, Bay Shore, NY 11706-5309.
- What is Stephen Bernhardt's phone number?
- The practice phone number listed in the NPPES registry for Stephen Bernhardt is (631) 666-2808.
- Does Stephen Bernhardt accept Medicare?
- Stephen Bernhardt is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephen Bernhardt's NPI active?
- Yes — Stephen Bernhardt's NPI (1851492904) is active in the NPPES registry as of the last update on 2009-11-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.