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MELVILLE CLAY O'BRIEN
NPI 1801590641
Internal Medicine in Jacksonville, FL

Active since March 27, 2023PECOS EnrolledAccepts Medicare Assignment
820 PRUDENTIAL DR STE 304, JACKSONVILLE, FL 32207(904) 202-3860(904) 202-3846 Get Directions Write a Review

NPPES record last updated: August 7, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Aug 7, 2026, Mar 27, 2023 (2 updates tracked since 2023).

About Melville Clay O'brien NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MELVILLE CLAY O'BRIEN (NPI 1801590641) is an individual internal medicine provider in Jacksonville, Florida, licensed in Florida (ME181768) and active in the NPI registry since March 2023. He is enrolled in Medicare PECOS and is a graduate of University Of South Carolina School Of Medicine (2023).

NPPES Registry Identity

NPI1801590641
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameMELVILLE CLAY O'BRIEN
Location Address820 PRUDENTIAL DR STE 304Jacksonville, FL 32207-8205
Mailing AddressPo Box 746638Atlanta, GA 30374-6638 · (904) 202-2092 · Fax (904) 376-4075
Phone(904) 202-3860
Fax(904) 202-3846
Sole ProprietorNo
Medical School CMSUniversity Of South Carolina School Of MedicineGraduated 2023
Enumeration DateMarch 27, 2023
Last NPPES UpdateAugust 7, 20262 updates tracked since enumeration
NPPES CertifiedAugust 7, 2026
✔ NPI 1801590641 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in FL · ME181768
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedHospitalistTaxonomy 208M00000X · License ME181768 (FL)
820 PRUDENTIAL DR STE 304, Jacksonville, FL 32207
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Florida Blue (BlueCross BlueShield FL), Florida Blue HMO (a BlueCross BlueShield FL company).Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Melville Clay O'brien is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8729447867
PECOS Enrollment IDI20260819005028
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Melville O'brien reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Baptist Primary Care Inc
Same address
Infectious Disease
820 PRUDENTIAL DR, SUITE 515
Jacksonville, FL 32207
  • Reassigned Medicare billing, Florida enrollment
  • 569 clinicians in this Medicare group
NPI 1588846869 (904) 396-4886

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 32207 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$130.04 typical visit price
range $56.00 – $171.84
Typical copayment $32.51 (range $14.00 – $42.96)
Most-billed visit code 99204
Established Patient
$99.16 typical visit price
range $17.57 – $139.16
Typical copayment $24.79 (range $4.39 – $34.79)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

SANDRELA MUSSALLAM ABU SHAIBEH
Hospitalist
820 PRUDENTIAL DR STE 304
JACKSONVILLE, FL 32207
Duval County (904) 202-3860
YU-CHUN LI APRN
Nurse Practitioner
820 PRUDENTIAL DR STE 304
JACKSONVILLE, FL 32207
Duval County (904) 202-3860
DR. CHRISTOPHER PATRICK CARROLL MD
Hospitalist
820 PRUDENTIAL DR STE 304
JACKSONVILLE, FL 32207
Duval County (904) 202-3860
CHAQUANTA ENJOLI EBERHEART APRN
Nurse Practitioner
820 PRUDENTIAL DR STE 304
JACKSONVILLE, FL 32207
Duval County (904) 202-3860
PETER N DAVISON MD
Hospitalist
820 PRUDENTIAL DR STE 304
JACKSONVILLE, FL 32207
Duval County (904) 202-3860
DR. BRYANT MAURI DO
Hospitalist
820 PRUDENTIAL DR STE 304
JACKSONVILLE, FL 32207
Duval County (904) 202-3860
DR. VENKATA R. MONINGI MD
Hospitalist
820 PRUDENTIAL DR STE 304
JACKSONVILLE, FL 32207
Duval County (904) 202-3860
DR. IRENE KATHRYN KLEIN LOUH MD, PHD
Internal Medicine (Pulmonary Disease)
820 PRUDENTIAL DR STE 304
JACKSONVILLE, FL 32207
Duval County (904) 202-3860

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Melville O'brien's NPI number?

The NPI number for Melville O'brien is 1801590641. It was assigned to this individual provider in the NPPES registry on March 27, 2023.

Where is Melville O'brien located?

Melville O'brien practices at 820 Prudential Dr Ste 304, Jacksonville, FL 32207. The listed phone number is (904) 202-3860.

What is Melville O'brien's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Melville O'brien enrolled in Medicare?

Yes. Melville O'brien is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Melville O'brien's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Melville O'brien reassigns Medicare benefits to Baptist Primary Care Inc (Jacksonville, FL). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Melville O'brien's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Melville O'brien accept?

Health plans from Florida Blue (BlueCross BlueShield FL) and Florida Blue HMO (a BlueCross BlueShield FL company) list Melville O'brien as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Melville O'brien was last updated on August 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.