Brian Matthew Lake, D.O.
NPI 1295887040ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Largo, FL
Internal Medicine, Endocrinology, Diabetes & Metabolism (D.O.) in Largo, Florida, trained at At Still University of Health Sciences, College of Osteo Med, Kirksville (class of 2004). Their prescriptions cost Medicare Part D more than their services did: $2,749,637 for 4,658 claims, against $158,004 paid for services in 2024. Lilly USA, LLC was the largest of 31 companies reporting payments in 2025, $162,206 in all, mostly speaking and faculty fees.
Overview
| NPI | 1295887040 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | Yes |
| NPI issued | Jan 18, 2007 |
| Last updated in NPPES | May 2, 2021 |
| Certified by provider | May 2, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | OS9591 | FL |
| Internal Medicine | 207R00000X | OS9591 | FL |
| Internal Medicine, Endocrinology, Diabetes & Metabolism | 207RE0101X | 1056 | SC |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Endocrinology (FL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 667 |
|---|---|
| Services billed | 2,630 across 12 procedure codes |
| Paid by Medicare | $158,004 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,658 · 11,465 30-day fills |
|---|---|
| Patients | 836 |
| Total drug cost | $2,749,637 |
| Generic share | 33% of claims |
Education and affiliations
| Medical school | At Still University of Health Sciences, College of Osteo Med, Kirksville |
|---|---|
| Graduation year | 2004 |
| Medicare specialty | Endocrinology |
| Secondary specialties | Internal Medicine |
Medical group
- Lake Endocrinology and Diabetes, PLLCLargo, FL · 2 clinicians
Hospital affiliations
- HCA Florida St Petersburg HospitalSaint Petersburg, FL
- Morton Plant HospitalClearwater, FL
- Orlando Health Bayfront HospitalSaint Petersburg, FL
- St Anthonys HospitalSaint Petersburg, FL
- St Josephs HospitalTampa, FL
Industry payments (Open Payments)
- 2025$162,206 · 323 payments from 31 companies
- 2024$163,284 · 387 payments from 25 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Lilly USA, LLC | $46,287 | 64 |
| Abbott Laboratories | $30,546 | 47 |
| Novo Nordisk Inc | $27,584 | 44 |
| Medtronic, Inc. | $23,172 | 45 |
| Tandem Diabetes Care, Inc. | $13,830 | 17 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$106,426 · 71 payments
- Compensation for serving as faculty or as a speaker for a medical education program$30,149 · 18 payments
- Travel and Lodging$10,874 · 60 payments
- Food and Beverage$7,632 · 173 payments
- Consulting Fee$7,125 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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