Luis Leon, M.D.
NPI 1235361759 · Geriatric Medicine (Internal Medicine) Physician · Southington, CT
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Luis Leon, M.D. is a Geriatric Medicine (Internal Medicine) Physician provider in Southington, CT (NPI 1235361759).
Provider details
- NPI number
- 1235361759
- Entity type
- Individual
- Primary specialty
- Geriatric Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 049613 (CT)
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
16 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
304 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 | 123 | $95 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 67 | $134 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 57 | $136 |
| Administration of Influenza Virus VaccineG0008 | 19 | $34 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 13 | $59 |
| Administration of Pneumococcal VaccineG0009 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 142 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 453 | 107 |
| Lisinopril | 341 | 82 |
| Atorvastatin Calcium | 273 | 75 |
| Rosuvastatin Calcium | 222 | 63 |
| Levothyroxine Sodium | 201 | 44 |
| Gabapentin | 177 | 41 |
| Semaglutide |
Practice location
Mailing address
Additional practice locations (1)
- 80 Phoenix AveSuite 201Waterbury, CT 06702-1418Phone: (203) 756-8021Fax: (203) 596-9038
Registry dates
- Enumerated
- 2009-08-17
- Last updated
- 2022-09-12
Frequently asked questions
- What is Luis Leon's NPI number?
- Luis Leon's National Provider Identifier (NPI) is 1235361759, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Luis Leon's specialty?
- Luis Leon is listed in the NPPES registry with a primary specialty of Geriatric Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Luis Leon located?
- Luis Leon's practice location on file with NPPES is 1115 West St, Southington, CT 06489-6025.
- What is Luis Leon's phone number?
- The practice phone number listed in the NPPES registry for Luis Leon is (860) 679-2766.
- Does Luis Leon accept Medicare?
- Luis Leon is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Luis Leon's NPI active?
- Yes — Luis Leon's NPI (1235361759) is active in the NPPES registry as of the last update on 2022-09-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.