John Karl Whalen, DO
Epilepsy Physician · Fleming Island, FL
John Karl Whalen, DO is an epilepsy physician with a practice address in Fleming Island, Florida, and NPI 1093337057, issued on May 13, 2020. Check the license (Florida OS21301, as entered in NPPES) on the Florida health license search; the Medicare figures below come from public CMS files.
- Name
- John Karl Whalen
- Credential
- DO
- Primary taxonomy
- Epilepsy Physician 2084E0001X
- License number
- OS21301 FL
Self-reported in NPPES; status is on the state search - Practice location
- 2310 Village Square Pkwy Ste 202, Fleming Island, FL 32003
- Phone
- (904) 516-1880
- Enumerated
- May 13, 2020
- Record last updated
- Jun 27, 2025
- Fax
- (904) 516-1885
- Medicare enrollment
- Enrolled (PECOS I20250708003158); may accept Medicare assignment
- Entity
- Type 1 · individual
8 nearest epilepsy physician records → All 30 in Florida → Look up another NPI →
Also registered at 2310 Village Square Pkwy Ste 202
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Kimberly Simon, APRNNurse Practitioner1053553974
Verify John Karl Whalen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersFlorida health license search
Search for license OS21301Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
79% fewer Medicare Part D claims than the average epilepsy physician in 2024
193 Medicare Part D claims for 34 beneficiaries, against an average of 934 among the 476 providers of this specialty who prescribed in Part D.
Most prescribed
- Gabapentin34 claims
- Carbidopa-Levodopa21 claims
- Levetiracetam17 claims
- Lamotrigine11 claims
- Pregabalin11 claims
- Tizanidine Hcl11 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 2 group practices
- Baptist Neurology IncFleming Island, FL
- Lake Area Physical Therapy Inc.Melrose, FL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Karl Whalen among 30 epilepsy physician records in Florida
John Karl Whalen, DO is one of 30 epilepsy physician records with a practice address in Florida. 97% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 87% of them.
- NPI issued2020 · 87% of these records are older, 3% newer
- In a Medicare fileYes · 97% of these records are
- In the CMS Doctors and Clinicians fileYes · 93% of these records are
- Graduated2020 · median 2007 among the 28 with a school on file
- Record last updated2025 · 0% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084E0001X and a Florida practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Epilepsy Physician providers in Florida
There are 30 epilepsy physician records in Florida.
All 30 in Florida → Every provider in Fleming Island → Epilepsy Physician nationwide →
The 8 epilepsy physician records with the nearest ZIP codes
- Anteneh Feyissa, MDJacksonville, FL 322241245542547
- Brin Freund, M.D.Jacksonville, FL 322241093151813
- William Tatum, DOJacksonville, FL 322241396764122
- Michelle Nunes Caravaglio, MDJacksonville Beach, FL 322501992245450
- Michel Abdelmasih, MDGainesville, FL 326101225610041
- Maria Bruzzone, MDGaineville, FL 326101679831812
- Jean Cibula, MDGainesville, FL 326101821074253
- Yue Wang, M.D.Gainesville, FL 326101306157995
Common questions
What is John Karl Whalen, DO's NPI number?
John Karl Whalen, DO's National Provider Identifier (NPI) is 1093337057, issued on May 13, 2020. An NPI identifies a provider in billing; it is not a license.
Where is John Karl Whalen, DO located?
The NPPES record lists a practice address at 2310 Village Square Pkwy Ste 202, Fleming Island, FL, 32003. Phone: (904) 516-1880. Providers update this record themselves, so call before visiting.
How can I verify John Karl Whalen, DO's license?
NPPES lists Florida license number OS21301, 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 John Karl Whalen, DO prescribe under Medicare Part D?
In 2024, John Karl Whalen, DO had 193 Medicare Part D claims for 34 beneficiaries; the average among epilepsy physician prescribers was 934. 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.