Timothy Lasseter, DO
Internal Medicine Physician · Green Cove Springs, FL
Timothy Lasseter, DO is an internal medicine physician with a practice address in Green Cove Springs, Florida, and NPI 1255081147, issued on Mar 24, 2022. Check the license (Florida OS21902, as entered in NPPES) on the Florida health license search; the Medicare figures below come from public CMS files.
- Name
- Timothy Lasseter
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- OS21902 FL
Self-reported in NPPES; status is on the state search - Practice location
- 705 Ferris St, Green Cove Springs, FL 32043
- Phone
- (904) 284-4510
- Enumerated
- Mar 24, 2022
- Record last updated
- Jul 15, 2026
- Fax
- (904) 284-3293
- Medicare enrollment
- Enrolled (PECOS I20250318002067); accepts Medicare assignment
- Medical or professional school
- Lake Erie Col Of Osteopathic Medicine, Bradenton, 2022
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 10,151 in Florida → Look up another NPI →
Also registered at 705 Ferris St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rebecca Adams, ARNPFamily Nurse Practitioner1063882264
- Sharon Lloyd, A.R.N.P.Gerontology Nurse Practitioner1164517280
- Gina Mele, ARNPFamily Nurse Practitioner1467772780
- George Platt, M.D.Family Medicine Physician1700881158
Verify Timothy Lasseter in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersFlorida health license search
Search for license OS21902Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average internal medicine physician in 2024
282 Medicare Part D claims for 35 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 11 claims were for opioids.
Most prescribed
- Gabapentin22 claims
- Hydrocortisone19 claims
- Trulicity18 claims
- Amlodipine Besylate17 claims
- Atorvastatin Calcium17 claims
- Metoprolol Succinate12 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- University OF Florida Jacksonville Physicians, Inc.Jacksonville, FL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Timothy Lasseter among 10,151 internal medicine physician records in Florida
Timothy Lasseter, DO is one of 10,151 internal medicine physician records with a practice address in Florida. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 92% of them.
- NPI issued2022 · 92% of these records are older, 4% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated2022 · median 2004 among the 6,606 with a school on file
- Record last updated2026 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Florida practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Internal Medicine Physician providers in Florida
There are 10,151 internal medicine physician records in Florida.
All 10,151 in Florida → Every provider in Green Cove Springs → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Batool Alatrash, MDFernandina Beach, FL 320341326651266
- Richard Braun, MDFernandina Beach, FL 320341205727088
- Gerald Burford, M.D.Fernandina Beach, FL 320341992796254
- Philip Devane, M.D.Fernandina Beach, FL 320341538150891
- Ansley Grogan, DOFernandina Beach, FL 320341962152330
- Gina Guzman, MDFernandina Beach, FL 320341235015686
- Alex Llarena, MDFernandina Beach, FL 320341326060203
- Joseph Lonzetta, DOFernandina Beach, FL 320341013921980
Common questions
What is Timothy Lasseter, DO's NPI number?
Timothy Lasseter, DO's National Provider Identifier (NPI) is 1255081147, issued on Mar 24, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Timothy Lasseter, DO located?
The NPPES record lists a practice address at 705 Ferris St, Green Cove Springs, FL, 32043. Phone: (904) 284-4510. Providers update this record themselves, so call before visiting.
How can I verify Timothy Lasseter, DO's license?
NPPES lists Florida license number OS21902, as entered by the provider. Search the Florida health license search at https://mqa-internet.doh.state.fl.us/mqasearchservices/healthcareproviders. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Timothy Lasseter, DO prescribe under Medicare Part D?
In 2024, Timothy Lasseter, DO had 282 Medicare Part D claims for 35 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.