Melville Clay O'Brien
Internal Medicine Physician · Jacksonville, FL
Melville Clay O'Brien is an internal medicine physician with a practice address in Jacksonville, Florida, and NPI 1801590641, issued on Mar 27, 2023. Check the license (Florida ME181768, as entered in NPPES) on the Florida health license search; the Medicare figures below come from public CMS files.
- Name
- Melville Clay O'Brien
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- ME181768 FL
Self-reported in NPPES; status is on the state search - Practice location
- 820 Prudential Dr Ste 304, Jacksonville, FL 32207
- Phone
- (904) 202-3860
- Enumerated
- Mar 27, 2023
- Record last updated
- Aug 7, 2026
- Fax
- (904) 202-3846
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 10,151 in Florida → Look up another NPI →
Also registered at 820 Prudential Dr Ste 304
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Vera Abaaba, M.D.Hospitalist Physician1033401856
- Ismeth Abbas, M.D.Internal Medicine Physician1245328020
- Noor Adamo, MDHospitalist Physician1811382682
- Rizwan Ahamed, MDInternal Medicine Physician1205210341
- Naveed Ahmed, M.D.Hospitalist Physician1043565971
- Shirley Aldrich, APRNNurse Practitioner1801966304
Verify Melville Clay O'Brien in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersFlorida health license search
Search for license ME181768Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average internal medicine physician in 2024
338 Medicare Part D claims for 60 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 14 claims were for opioids.
Most prescribed
- Losartan Potassium22 claims
- Gabapentin19 claims
- Metoprolol Succinate19 claims
- Pantoprazole Sodium17 claims
- Spironolactone15 claims
- Atorvastatin Calcium14 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.
Industry payments in 2024: $110.43
1 payment: food and beverage; the largest payer was SK Life Science, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Melville Clay O'Brien among 10,151 internal medicine physician records in Florida
Melville Clay O'Brien 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 2023, is newer than 96% of them.
- NPI issued2023 · 96% of these records are older, 2% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileNo · 65% of these records are
- Record last updated2026 · 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).
546 internal medicine physician records list a practice address in Jacksonville
They are 546 of the 24,194 NPPES records with a practice address in Jacksonville, and 10,151 internal medicine physician records in Florida.
All 10,151 in Florida → Every provider in Jacksonville → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Muhammad Ali, MDJacksonville, FL 322071356326995
- Alison Bartfield, MDJacksonville, FL 322071811974454
- Theodore Glasser, MDJacksonville, FL 322071295712883
- Robert Hutchingson, MDJacksonville, FL 322071356313761
- Roberto Jo, M.D.Jacksonville, FL 322071629042403
- Mark Konicki, MDJacksonville, FL 322071649250523
- Robert Kulchinsky, M.D.Jacksonville, FL 322071982683595
- Marius Laurinaitis, M.D.Jacksonville, FL 322071639174212
Common questions
What is Melville Clay O'Brien's NPI number?
Melville Clay O'Brien's National Provider Identifier (NPI) is 1801590641, issued on Mar 27, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Melville Clay O'Brien located?
The NPPES record lists a practice address at 820 Prudential Dr Ste 304, Jacksonville, FL, 32207. Phone: (904) 202-3860. Providers update this record themselves, so call before visiting.
How can I verify Melville Clay O'Brien's license?
NPPES lists Florida license number ME181768, 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 Melville Clay O'Brien prescribe under Medicare Part D?
In 2024, Melville Clay O'Brien had 338 Medicare Part D claims for 60 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.