Guillermo Y. Nunez Vergara, MD
Internal Medicine Physician · Orlando, FL
Guillermo Y. Nunez Vergara, MD is an internal medicine physician with a practice address in Orlando, Florida, and NPI 1720272107, issued on Aug 29, 2007. Check the license (Florida ME106818, as entered in NPPES) on the Florida health license search; the Medicare figures below come from public CMS files.
- Name
- Guillermo Y. Nunez Vergara
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- ME106818 FL
Self-reported in NPPES; status is on the state search - Practice location
- 86 W Underwood St, Orlando, FL 32806
- Phone
- (888) 912-3648
- Enumerated
- Aug 29, 2007
- Record last updated
- Nov 14, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (321) 841-4085
- Medicaid ID
- 005976000 FL
- Medicare enrollment
- Enrolled (PECOS I20110818000400); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 10,151 in Florida → Look up another NPI →
Also registered at 86 W Underwood St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Guillermo Y. Nunez Vergara in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersFlorida health license search
Search for license ME106818Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average internal medicine physician in 2024
143 Medicare Part D claims for 69 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 16 claims were for opioids.
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
- Orlando Health Medical Group IncOrlando, FL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Guillermo Y. Nunez Vergara among 10,151 internal medicine physician records in Florida
Guillermo Y. Nunez Vergara, 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 2007, is newer than 45% of them.
- NPI issued2007 · 45% of these records are older, 48% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated1987 · median 2004 among the 6,606 with a school on file
- Record last updated2016 · 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).
534 internal medicine physician records list a practice address in Orlando
They are 534 of the 25,426 NPPES records with a practice address in Orlando, and 10,151 internal medicine physician records in Florida.
All 10,151 in Florida → Every provider in Orlando → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
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- Milan Janmeja, MDOrlando, FL 328061649206020
- Scott Korman, MDOrlando, FL 328061467491357
- Mario Madruga, MDOrlando, FL 328061568432623
- Jahely Marrero, MDOrlando, FL 328061649262395
- Dennis McCommon, M.D.Orlando, FL 328061275519639
Common questions
What is Guillermo Y. Nunez Vergara, MD's NPI number?
Guillermo Y. Nunez Vergara, MD's National Provider Identifier (NPI) is 1720272107, issued on Aug 29, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Guillermo Y. Nunez Vergara, MD located?
The NPPES record lists a practice address at 86 W Underwood St, Orlando, FL, 32806. Phone: (888) 912-3648. Providers update this record themselves, so call before visiting.
How can I verify Guillermo Y. Nunez Vergara, MD's license?
NPPES lists Florida license number ME106818, 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 Guillermo Y. Nunez Vergara, MD prescribe under Medicare Part D?
In 2024, Guillermo Y. Nunez Vergara, MD had 143 Medicare Part D claims for 69 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.