Leonard Rosenfeld, DO
NPI 1134142318 · Internal Medicine Physician · Philadelphia, PA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Leonard Rosenfeld, DO is a Internal Medicine Physician provider in Philadelphia, PA (NPI 1134142318).
Provider details
- NPI number
- 1134142318
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- Yes
- License
- 05001780L (PA)
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 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 · 26 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 47 | 18 |
| Metoprolol Succinate | 44 | 14 |
| Amlodipine Besylate | 42 | 18 |
| Alprazolam | 38 | — |
| Lisinopril | 29 | — |
| Hydrochlorothiazide | 29 | — |
| Lorazepam | 22 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-26
- Last updated
- 2020-12-08
- Certified
- 2020-12-07
Frequently asked questions
- What is Leonard Rosenfeld's NPI number?
- Leonard Rosenfeld's National Provider Identifier (NPI) is 1134142318, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Leonard Rosenfeld's specialty?
- Leonard Rosenfeld is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Leonard Rosenfeld located?
- Leonard Rosenfeld's practice location on file with NPPES is 1740 South St Ste 402, Philadelphia, PA 19146-1514.
- What is Leonard Rosenfeld's phone number?
- The practice phone number listed in the NPPES registry for Leonard Rosenfeld is (215) 382-6112.
- Does Leonard Rosenfeld accept Medicare?
- Leonard Rosenfeld is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Leonard Rosenfeld's NPI active?
- Yes — Leonard Rosenfeld's NPI (1134142318) is active in the NPPES registry as of the last update on 2020-12-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.