Kelsey June Diemer, DO
Sports Medicine (Internal Medicine) Physician · Estero, FL
Kelsey June Diemer, DO is a sports medicine (internal medicine) physician with a practice address in Estero, Florida, and NPI 1770043150, issued on Mar 22, 2019. Check the license (Florida OS20212, as entered in NPPES) on the Florida health license search; the Medicare figures below come from public CMS files.
- Name
- Kelsey June Diemer
- Credential
- DO
- Primary taxonomy
- Sports Medicine (Internal Medicine) Physician 207RS0010X
- License number
- OS20212 FL
Self-reported in NPPES; status is on the state search - Practice location
- 23450 Via Coconut PT, Estero, FL 34135
- Phone
- (239) 343-9696
- Enumerated
- Mar 22, 2019
- Record last updated
- Nov 6, 2025
- Fax
- (239) 343-4198
- Medicaid ID
- 119160500 FL
- Medicare enrollment
- Enrolled (PECOS I20231012001114); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 23450 Via Coconut PT
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Michael Applebaum, M.D.Internal Medicine Physician1922009562
- Yanet Armas Hernandez, MDInternal Medicine Physician1295312486
- Martha Barzana-FernandezInternal Medicine Physician1184017782
- Giselle Brito Mantilla, MDInternal Medicine Physician1215679402
- Jessica Castaneira, M.DFamily Medicine Physician1740669613
- Jessica Castillo, MDInternal Medicine Physician1376009910
Verify Kelsey June Diemer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersFlorida health license search
Search for license OS20212Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
67% fewer Medicare Part D claims than the average sports medicine (internal medicine) physician in 2024
202 Medicare Part D claims for 138 beneficiaries, against an average of 605 among the 227 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Meloxicam59 claims
- Methylprednisolone35 claims
- Naproxen22 claims
- Baclofen15 claims
- Prednisone12 claims
- Diclofenac Sodium11 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.
Industry payments in 2024: $24.00
1 payment: food and beverage; the largest payer was Arthrex, Inc. The 125 providers of this specialty with any payment received $667.42 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Lee Health System IncFort Myers, FL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sports Medicine (Internal Medicine) Physician providers in Florida
There are 21 sports medicine (internal medicine) physician records in Florida.
Other sports medicine (internal medicine) physician records in Florida
- Reza Alavi, MDTemple Terrace, FL1730575044
- Jeffrey Alent, D.O.Daytona Beach, FL1740606441
- Kenneth Barnes, M.D.Summerfield, FL1447338587
- Alex Brown, MDJacksonville, FL1700902434
- Colton Faza, M.D.Lakeland, FL1013363464
- Jorge Gonzalez, M.D.Fort Lauderdale, FL1427390137
- Brian Grundt, DODeerfield Beach, FL1437682267
- Chris Kunis, M.D.Ocala, FL1760429989
- Fernando Manalac, M.D.Oakland Park, FL1316170350
- Byron Moran, M.D.Tampa, FL1689973448
Common questions
What is Kelsey June Diemer, DO's NPI number?
Kelsey June Diemer, DO's National Provider Identifier (NPI) is 1770043150, issued on Mar 22, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Kelsey June Diemer, DO located?
The NPPES record lists a practice address at 23450 Via Coconut PT, Estero, FL, 34135. Phone: (239) 343-9696. Providers update this record themselves, so call before visiting.
How can I verify Kelsey June Diemer, DO's license?
NPPES lists Florida license number OS20212, 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 Kelsey June Diemer, DO prescribe under Medicare Part D?
In 2024, Kelsey June Diemer, DO had 202 Medicare Part D claims for 138 beneficiaries; the average among sports medicine (internal medicine) physician prescribers was 605. 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.