Mason Hoyt Long
Internal Medicine Physician · Saint Augustine, FL
Mason Hoyt Long is an internal medicine physician with a practice address in Saint Augustine, Florida, and NPI 1790854537, issued on Nov 7, 2006. Check the license (Florida ME0055529, as entered in NPPES) on the Florida health license search; the Medicare figures below come from public CMS files.
- Name
- Mason Hoyt Long
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- ME0055529 FL
Self-reported in NPPES; status is on the state search - Practice location
- 301 Health Park Blvd Ste 325, Saint Augustine, FL 32086
- Phone
- (904) 824-6164
- Enumerated
- Nov 7, 2006
- Record last updated
- Apr 21, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (904) 824-0365
- Medicaid ID
- 038939100 FL
- Medicare enrollment
- Enrolled (PECOS I20100422000258); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 10,151 in Florida → Look up another NPI →
Verify Mason Hoyt Long in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersFlorida health license search
Search for license ME0055529Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
6% more Medicare Part D claims than the average internal medicine physician in 2024
3,358 Medicare Part D claims for 200 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 110 claims were for opioids.
Most prescribed
- Levothyroxine Sodium186 claims
- Losartan Potassium151 claims
- Atorvastatin Calcium146 claims
- Alprazolam119 claims
- Amlodipine Besylate88 claims
- Metoprolol Succinate84 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.
The MIPS final score for 2023 (Medicare payment program): 87.6 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Mason Hoyt Long among 10,151 internal medicine physician records in Florida
Mason Hoyt Long 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 2006, is newer than 10% of them.
- NPI issued2006 · 10% of these records are older, 55% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated1986 · median 2004 among the 6,606 with a school on file
- Record last updated2010 · 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).
6 internal medicine physician records list a practice address in Saint Augustine
They are 6 of the 704 NPPES records with a practice address in Saint Augustine, and 10,151 internal medicine physician records in Florida.
All 10,151 in Florida → Every provider in Saint Augustine → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Ernesto Carames, M.D.St Augustine, FL 320861528099603
- Maria Teresa David, D.O.St Augustine, FL 320861013914787
- Goar Delamerens, M.D.St Augustine, FL 320861447281530
- Walter Frady, M.D.St Augustine, FL 320861255361382
- Girish Ghade, M.DSaint Augustine, FL 320861619084761
- Rosemarie Lim, M.D.St Augustine, FL 320861013945864
- Amir Malik, MDSt Augustine, FL 320861386749505
- Thomas McKenzie, D.O.St Augustine, FL 320861255435632
Common questions
What is Mason Hoyt Long's NPI number?
Mason Hoyt Long's National Provider Identifier (NPI) is 1790854537, issued on Nov 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mason Hoyt Long located?
The NPPES record lists a practice address at 301 Health Park Blvd Ste 325, Saint Augustine, FL, 32086. Phone: (904) 824-6164. Providers update this record themselves, so call before visiting.
How can I verify Mason Hoyt Long's license?
NPPES lists Florida license number ME0055529, 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 Mason Hoyt Long prescribe under Medicare Part D?
In 2024, Mason Hoyt Long had 3,358 Medicare Part D claims for 200 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Mason Hoyt Long's MIPS final score?
The 2023 MIPS final score is 87.6 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.