Jessica Castellanos-Diaz, MD
Endocrinology, Diabetes & Metabolism Physician · Kissimmee, FL
Jessica Castellanos-Diaz, MD is an endocrinology, diabetes & metabolism physician with a practice address in Kissimmee, Florida, and NPI 1295117489, issued on Jun 24, 2015. Check the license (Florida ME151130, as entered in NPPES) on the Florida health license search; the Medicare figures below come from public CMS files.
- Name
- Jessica Castellanos-Diaz
- Credential
- MD
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License numbers
- ME151130 FL
25915 FL
31658 PR
Self-reported in NPPES; status is on the state search - Practice location
- 2400 N Orange Blossom Trl Ste 306, Kissimmee, FL 34744
- Phone
- (407) 932-6190
- Enumerated
- Jun 24, 2015
- Record last updated
- Feb 8, 2026
- Fax
- (407) 932-6191
- Medicare enrollment
- Enrolled (PECOS I20211109001090); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 656 in Florida → Look up another NPI →
Also registered at 2400 N Orange Blossom Trl Ste 306
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Daniel Ullah, PA-CPhysician Assistant1376707950
- Juan Varon, M.D.Endocrinology, Diabetes & Metabolism Physician1053512350
Verify Jessica Castellanos-Diaz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersFlorida health license search
Search for license ME151130Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
53% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
1,244 Medicare Part D claims for 136 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 51% of claims.
Most prescribed
- Ozempic106 claims
- Jardiance90 claims
- Trulicity83 claims
- Lantus Solostar56 claims
- Mounjaro56 claims
- Glipizide Er48 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: $244.55
12 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 5,661 providers of this specialty with any payment received $5,742.15 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
- Florida Hospital Medical Group IncKissimmee, FL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jessica Castellanos-Diaz among 656 endocrinology, diabetes & metabolism physician records in Florida
Jessica Castellanos-Diaz, MD is one of 656 endocrinology, diabetes & metabolism physician records with a practice address in Florida. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 82% of them.
- NPI issued2015 · 82% of these records are older, 15% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated2014 · median 2002 among the 462 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 207RE0101X and a Florida practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in Florida
There are 656 endocrinology, diabetes & metabolism physician records in Florida.
All 656 in Florida → Every provider in Kissimmee → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Carol Ramirez Rojas, M.D.Kissimmee, FL 347441063773430
- Juan Varon, M.D.Kissimmee, FL 347441053512350
- Sualeh Ashraf, MDKissimmee, FL 347411457306342
- Umal Azmat, MDKissimmee, FL 347411417260803
- Alexander Barsegian, MDKissimmee, FL 347411548855505
- Robert Coleman, MDCelebration, FL 347471487663928
- Max Sosa Pagan, M.DKissimmee, FL 347411205280963
- Jose Mandry, M.D.Ocoee, FL 347611386674794
Common questions
What is Jessica Castellanos-Diaz, MD's NPI number?
Jessica Castellanos-Diaz, MD's National Provider Identifier (NPI) is 1295117489, issued on Jun 24, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Jessica Castellanos-Diaz, MD located?
The NPPES record lists a practice address at 2400 N Orange Blossom Trl Ste 306, Kissimmee, FL, 34744. Phone: (407) 932-6190. Providers update this record themselves, so call before visiting.
How can I verify Jessica Castellanos-Diaz, MD's license?
NPPES lists Florida license number ME151130, 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 Jessica Castellanos-Diaz, MD prescribe under Medicare Part D?
In 2024, Jessica Castellanos-Diaz, MD had 1,244 Medicare Part D claims for 136 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. 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.