Diana Johnstone Graves, D.O.
Family Medicine Physician · Ocala, FL
Diana Johnstone Graves, D.O. is a family medicine physician with a practice address in Ocala, Florida, and NPI 1265524870, issued on Sep 29, 2006. Check the license (Florida OS6568, as entered in NPPES) on the Florida health license search; the Medicare figures below come from public CMS files.
- Name
- Diana Johnstone Graves
- Credential
- D.O.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- OS6568 FL
Self-reported in NPPES; status is on the state search - Practice location
- 2521 SE Lake Weir Ave, Ocala, FL 34471
- Phone
- (352) 690-6900
- Enumerated
- Sep 29, 2006
- Record last updated
- Dec 4, 2023
- Fax
- (352) 671-9525
- Medicaid ID
- 372308900 FL
- Medicare enrollment
- Enrolled (PECOS I20080801000559); accepts Medicare assignment
- Medical or professional school
- Nova Southeastern College Of Osteo Medicine, 1986
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 9,399 in Florida → Look up another NPI →
Verify Diana Johnstone Graves in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersFlorida health license search
Search for license OS6568Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
17% fewer Medicare Part D claims than the average family medicine physician in 2024
2,947 Medicare Part D claims for 299 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.
Most prescribed
- Levothyroxine Sodium284 claims
- Atorvastatin Calcium225 claims
- Lisinopril179 claims
- Rosuvastatin Calcium158 claims
- Metformin Hcl134 claims
- Amlodipine Besylate118 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.
Diana Johnstone Graves among 9,399 family medicine physician records in Florida
Diana Johnstone Graves, D.O. is one of 9,399 family medicine physician records with a practice address in Florida. 79% 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 · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated1986 · median 2004 among the 5,504 with a school on file
- Record last updated2023 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Florida practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
115 family medicine physician records list a practice address in Ocala
They are 115 of the 4,935 NPPES records with a practice address in Ocala, and 9,399 family medicine physician records in Florida.
All 9,399 in Florida → Every provider in Ocala → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Darin Brown, MDOcala, FL 344711174510697
- Sidney Clevinger, MDOcala, FL 344711760461974
- Frank Fusco, M.DOcala, FL 344711750361630
- Nina Hare, DOOcala, FL 344711801863154
- Donald Liebelt, MDOcala, FL 344711710969076
- Thomas Linberg, MDOcala, FL 344711861475717
- James McLaughlin, MDOcala, FL 344711063404960
- James Miller, MDOcala, FL 344711376523944
Common questions
What is Diana Johnstone Graves, D.O.'s NPI number?
Diana Johnstone Graves, D.O.'s National Provider Identifier (NPI) is 1265524870, issued on Sep 29, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Diana Johnstone Graves, D.O. located?
The NPPES record lists a practice address at 2521 SE Lake Weir Ave, Ocala, FL, 34471. Phone: (352) 690-6900. Providers update this record themselves, so call before visiting.
How can I verify Diana Johnstone Graves, D.O.'s license?
NPPES lists Florida license number OS6568, 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 Diana Johnstone Graves, D.O. prescribe under Medicare Part D?
In 2024, Diana Johnstone Graves, D.O. had 2,947 Medicare Part D claims for 299 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.