Leonard Muller, M.D.,
NPI 1659349553 · Internal Medicine Physician · Broolkyn, NY
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Leonard Muller, M.D., is a Internal Medicine Physician provider in Broolkyn, NY (NPI 1659349553).
Provider details
- NPI number
- 1659349553
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.,
- Sex
- Male
- Sole proprietor
- No
- License
- 152108 (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
2,427 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 Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308 | 2,183 | $83 |
| Chronic Care Management Services for Two Or More Chronic Conditions, Additional 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99439 | 122 | $55 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 122 | $71 |
Typical Medicare-allowed amounts for these services range $55–$83 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 164 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Apixabanbrand: Eliquis | 483 | 50 |
| Atorvastatin Calcium | 462 | 69 |
| Amlodipine Besylate | 334 | 61 |
| Levothyroxine Sodium | 324 | 50 |
| Gabapentin | 261 | 43 |
| Metoprolol Succinate | 249 | 52 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-03-08
- Last updated
- 2012-11-21
Frequently asked questions
- What is Leonard Muller's NPI number?
- Leonard Muller's National Provider Identifier (NPI) is 1659349553, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Leonard Muller's specialty?
- Leonard Muller is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Leonard Muller located?
- Leonard Muller's practice location on file with NPPES is 8801 Ft Hamilton Parkway, Broolkyn, NY 11209.
- What is Leonard Muller's phone number?
- The practice phone number listed in the NPPES registry for Leonard Muller is (718) 680-2959.
- Does Leonard Muller accept Medicare?
- Leonard Muller is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Leonard Muller's NPI active?
- Yes — Leonard Muller's NPI (1659349553) is active in the NPPES registry as of the last update on 2012-11-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.