Physician Profile
Unclaimed ProfileAbout LEON
Luis Diego Leon, M.D. practises internal medicine in Southington, CT. Luis is also listed as specialising in geriatric medicine.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Common questions
What is Dr. Leon's specialty?
Dr. Leon is an internal medicine in Southington, CT. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “INTERNAL MEDICINE”.
NPI registry
Where can I find Dr. Leon?
Dr. Leon is listed at 1115 WEST ST, Southington, CT 06489. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Leon?
The number on file is (860) 679-2766. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Leon?
Dr. Leon's National Provider Identifier is 1235361759. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Dr. Leon's medical education?
Dr. Leon attended Other, graduating in 1999. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Leon have?
Dr. Leon has 27 years experience. Calculated from a graduation year of 1999, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Leon known for?
According to Medicare billing data, Dr. Leon provides treatments such as sarscov2 vac 50 mcg/0.5ml im and admn sarscov2 vacc 1 dose, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Leon's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Leon. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (860) 679-2766
- Email not available
Practice Locations
1115 WEST ST
Southington, CT 06489
Procedures Most Often Billed to Medicare
327 services · 261 patients · 9 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Sarscov2 vac 50 mcg/0.5ml im | Treatment | 91322 |
12 |
| Admn sarscov2 vacc 1 dose | Treatment | 90480 |
12 |
| Influenza vaccine, inactivated | Treatment | 90653 |
11 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
123 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
67 |
| Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | Billing code | G0439 |
57 |
| Administration of influenza virus vaccine | Billing code | G0008 |
19 |
| Administration of pneumococcal vaccine | Billing code | G0009 |
13 |
| Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more | Office visit | 99212 |
13 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
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Claim this profileRelated providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other internal medicines at this location 6
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 2
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 30 related providers in 4 groups
Other internal medicines in Southington 6
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 1999 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Sarscov2 vac 50 mcg/0.5ml im 8
Providers in CT who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.