Nathan Alphonso Graddy, D.D.S
Dentist · Port Richey, FL
Nathan Alphonso Graddy, D.D.S is a dentist with a practice address in Port Richey, Florida, and NPI 1225318025, issued on Aug 24, 2011. Check the license (Florida DN4964, as entered in NPPES) on the Florida health license search; the Medicare figures below come from public CMS files.
- Name
- Nathan Alphonso Graddy
- Credential
- D.D.S
- Primary taxonomy
- Dentist 122300000X
- License number
- DN4964 FL
Self-reported in NPPES; status is on the state search - Practice location
- 9721 US Highway 19, Port Richey, FL 34668
- Phone
- (727) 846-7555
- Enumerated
- Aug 24, 2011
- Record last updated
- Dec 27, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicaid ID
- 072704100 FL
- Entity
- Type 1 · individual
8 nearest dentist records → All 6,155 in Florida → Look up another NPI →
Also registered at 9721 US Highway 19
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mariana Boles, D.D.SDentist1255745428
- Richard Paternoster, DDSDentist1043483480
Verify Nathan Alphonso Graddy in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersFlorida health license search
Search for license DN4964Check 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 dentist in 2024
18 Medicare Part D claims for 16 beneficiaries, against an average of 86 among the 51,021 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.
Nathan Alphonso Graddy among 6,155 dentist records in Florida
Nathan Alphonso Graddy, D.D.S is one of 6,155 dentist records with a practice address in Florida. 68% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 40% of them.
- NPI issued2011 · 40% of these records are older, 58% newer
- In a Medicare fileYes · 68% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2019 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 122300000X and a Florida practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
11 dentist records list a practice address in Port Richey
They are 11 of the 396 NPPES records with a practice address in Port Richey, and 6,155 dentist records in Florida.
All 6,155 in Florida → Every provider in Port Richey → Dentist nationwide →
The 8 dentist records with the nearest ZIP codes
- Aymee Almaguer Bezanilla, DDSPort Richey, FL 346681588000814
- Jhon AndraousPort Richey, FL 346681003590985
- Mariana Boles, D.D.SPort Richey, FL 346681255745428
- Catherine Falinskaya, DMDPort Richey, FL 346681487484879
- Phillip Goff, DDSPort Richey, FL 346681780853135
- Ioannis Helidonas, DDSPort Richey, FL 346681619111333
- Paul Lynch, D.D.S.Port Richey, FL 346681134188477
- Alfred Mann, DMDPort Richey, FL 346681013027093
Common questions
What is Nathan Alphonso Graddy, D.D.S's NPI number?
Nathan Alphonso Graddy, D.D.S's National Provider Identifier (NPI) is 1225318025, issued on Aug 24, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Nathan Alphonso Graddy, D.D.S located?
The NPPES record lists a practice address at 9721 US Highway 19, Port Richey, FL, 34668. Phone: (727) 846-7555. Providers update this record themselves, so call before visiting.
How can I verify Nathan Alphonso Graddy, D.D.S's license?
NPPES lists Florida license number DN4964, 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 Nathan Alphonso Graddy, D.D.S prescribe under Medicare Part D?
In 2024, Nathan Alphonso Graddy, D.D.S had 18 Medicare Part D claims for 16 beneficiaries; the average among dentist prescribers was 86. 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.