Theresa N. Huyen, MD
Internal Medicine Physician · New Smyrna Beach, FL
Theresa N. Huyen, MD is an internal medicine physician with a practice address in New Smyrna Beach, Florida, and NPI 1760675599, issued on Aug 24, 2007. Check the license (Florida ME99640, as entered in NPPES) on the Florida health license search; the Medicare figures below come from public CMS files.
- Name
- Theresa N. Huyen
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- ME99640 FL
M-2512 GU
Self-reported in NPPES; status is on the state search - Practice location
- 1914 SR 44, New Smyrna Beach, FL 32168
- Phone
- (386) 586-7005
- Enumerated
- Aug 24, 2007
- Record last updated
- Nov 18, 2025
- Medicaid ID
- 016999600 FL
- Medicare enrollment
- Enrolled (PECOS I20071010000298); 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 1914 SR 44
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Joshua Yun, MDFamily Medicine Physician1578580064
Verify Theresa N. Huyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersFlorida health license search
Search for license ME99640Check 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
55 Medicare Part D claims for 25 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Valacyclovir13 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
- Guam Healthcare Development IncorporatedDededo, GU
- Sound Physicians OF Florida IV, LLCPalm Coast, FL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Theresa N. Huyen among 10,151 internal medicine physician records in Florida
Theresa N. Huyen, 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
- Graduated2004 · median 2004 among the 6,606 with a school on file
- Record last updated2025 · 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).
18 internal medicine physician records list a practice address in New Smyrna Beach
They are 18 of the 560 NPPES records with a practice address in New Smyrna Beach, and 10,151 internal medicine physician records in Florida.
All 10,151 in Florida → Every provider in New Smyrna Beach → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Gaurav Ahluwalia, MDNew Smyrna Beach, FL 321681073990727
- Staci Appleton, MDNew Smyrna Beach, FL 321681427162189
- Khalid Baosman, M.D.New Smyrna Beach, FL 321681982047932
- Sherry Demian, MDNew Smyrna Beach, FL 321681689238347
- Frank Flasterstein, MD PANew Smyrna Beach, FL 321681689632192
- Samuel Gonzalez Goyri, MDNew Smyrna Beach, FL 321681750933321
- Nabil Guindi, MDNew Smyrna, FL 321681215180922
- George Herdel, M.D.New Smyrna Beach, FL 321681457313421
Common questions
What is Theresa N. Huyen, MD's NPI number?
Theresa N. Huyen, MD's National Provider Identifier (NPI) is 1760675599, issued on Aug 24, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Theresa N. Huyen, MD located?
The NPPES record lists a practice address at 1914 SR 44, New Smyrna Beach, FL, 32168. Phone: (386) 586-7005. Providers update this record themselves, so call before visiting.
How can I verify Theresa N. Huyen, MD's license?
NPPES lists Florida license number ME99640, 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 Theresa N. Huyen, MD prescribe under Medicare Part D?
In 2024, Theresa N. Huyen, MD had 55 Medicare Part D claims for 25 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.