Leonard Stern, M.D.
NPI 1124190228 · Nephrology Physician · New York, NY
Leonard Stern, M.D. is a Nephrology Physician provider in New York, NY (NPI 1124190228).
Provider details
- NPI number
- 1124190228
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 129163 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 · 32 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 136 | 37 |
| Allopurinol | 58 | 16 |
| Ezetimibe | 54 | 11 |
| Amlodipine Besylate | 34 | — |
| Levothyroxine Sodium | 32 | — |
| Eplerenone | 32 | — |
| Simvastatin | 31 | — |
| Sodium Zirconium Cyclosilicate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-14
- Last updated
- 2025-03-24
- Certified
- 2025-03-24
Frequently asked questions
- What is Leonard Stern's NPI number?
- Leonard Stern's National Provider Identifier (NPI) is 1124190228, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Leonard Stern's specialty?
- Leonard Stern is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Leonard Stern located?
- Leonard Stern's practice location on file with NPPES is 903 Park Ave Fl 1, New York, NY 10075-0362.
- What is Leonard Stern's phone number?
- The practice phone number listed in the NPPES registry for Leonard Stern is (212) 249-8535.
- Is Leonard Stern's NPI active?
- Yes — Leonard Stern's NPI (1124190228) is active in the NPPES registry as of the last update on 2025-03-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.