Nathaniel Rosa Santiago, MD
Internal Medicine Physician · Kissimmee, FL
Nathaniel Rosa Santiago, MD is an internal medicine physician with a practice address in Kissimmee, Florida, and NPI 1053013888, issued on Mar 17, 2023. Check the license (Florida ME180001, as entered in NPPES) on the Florida health license search; the Medicare figures below come from public CMS files.
- Name
- Nathaniel Rosa Santiago
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- ME180001 FL
Self-reported in NPPES; status is on the state search - Practice location
- 720 W Oak St Ste 201, Kissimmee, FL 34741
- Phone
- (407) 518-2772
- Enumerated
- Mar 17, 2023
- Record last updated
- Jun 9, 2026
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 10,151 in Florida → Look up another NPI →
Also registered at 720 W Oak St Ste 201
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Nathaniel Rosa Santiago in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersFlorida health license search
Search for license ME180001Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average internal medicine physician in 2024
63 Medicare Part D claims for 24 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
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.
Nathaniel Rosa Santiago among 10,151 internal medicine physician records in Florida
Nathaniel Rosa Santiago, MD 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 2023, is newer than 96% of them.
- NPI issued2023 · 96% of these records are older, 2% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileNo · 65% of these records are
- 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).
74 internal medicine physician records list a practice address in Kissimmee
They are 74 of the 5,568 NPPES records with a practice address in Kissimmee, and 10,151 internal medicine physician records in Florida.
All 10,151 in Florida → Every provider in Kissimmee → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Fiaz Afzal, MDKissimmee, FL 347411003801044
- Ajaz Afzal, MDKissimmee, FL 347411750341236
- Malathi Akula, M.D.Kissimmee, FL 347411134117120
- Tahsina Atiquzzaman, M.D.Kissimmee, FL 347411730167263
- Pedro Carrazana Perez, M.D.Kissimmee, FL 347411558367243
- Roger Crouse, MDKissimmee, FL 347411477538197
- Sidi Elalaoui, MDKissimmee, FL 347411023044674
- Alberto Garcia-Romeu, M.D.Kissimmee, FL 347411225064728
Common questions
What is Nathaniel Rosa Santiago, MD's NPI number?
Nathaniel Rosa Santiago, MD's National Provider Identifier (NPI) is 1053013888, issued on Mar 17, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Nathaniel Rosa Santiago, MD located?
The NPPES record lists a practice address at 720 W Oak St Ste 201, Kissimmee, FL, 34741. Phone: (407) 518-2772. Providers update this record themselves, so call before visiting.
How can I verify Nathaniel Rosa Santiago, MD's license?
NPPES lists Florida license number ME180001, 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 Nathaniel Rosa Santiago, MD prescribe under Medicare Part D?
In 2024, Nathaniel Rosa Santiago, MD had 63 Medicare Part D claims for 24 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.