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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

WILLIAM LEMAR JACKSON JR. MD
NPI 1841243920
Internal Medicine - Critical Care Medicine in Melbourne, FL

Active since May 18, 2006
1350 S HICKORY ST, MELBOURNE, FL 32901(321) 434-4225(321) 434-4247 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About William Lemar Jackson Jr. Md NPPES

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

WILLIAM LEMAR JACKSON JR. MD (NPI 1841243920) is an individual critical care medicine provider in Melbourne, Florida, licensed in Florida (ME95860) and active in the NPI registry since May 2006.

NPPES Registry Identity

NPI1841243920
Entity TypeIndividualMale
Primary Taxonomy207RC0200X
Provider Legal NameWILLIAM LEMAR JACKSON JR.Credential: MD
Location Address1350 S HICKORY STMelbourne, FL 32901-3278
Mailing AddressPo Box 561600Rockledge, FL 32956-1600 · (321) 434-4656 · Fax (321) 259-5130
Phone(321) 434-4225
Fax(321) 434-4247
Sole ProprietorNo
Enumeration DateMay 18, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1841243920 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Critical Care MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RC0200X
License✔ Licensed in FL · ME95860
Definition
An internist who diagnoses, treats and supports patients with multiple organ dysfunction. This specialist may have administrative responsibilities for intensive care units and may also facilitate and coordinate patient care among the primary physician, the critical care staff and other specialists.
1350 S HICKORY ST, Melbourne, FL 32901
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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.

MR. MARY FRANCES HIBBARD CRNFA
Registered Nurse (Medical-Surgical)
1350 S HICKORY ST, HOLMES REGIONAL MEDICAL CENTER (HEALTHFIRST)
MELBOURNE, FL 32901
Brevard County (321) 434-7000
TNT ENTERPRISES OF BREVARD INC.
Physician Assistant
1350 S HICKORY ST
MELBOURNE, FL 32901
Brevard County (321) 288-4068
DR. IRINA S MEZHERITSKIY M.D.
Radiology (Diagnostic Radiology)
1350 S HICKORY ST, HOLMES REGIONAL MEDICAL CENTER/RADIOLOGY
MELBOURNE, FL 32901
Brevard County (321) 434-7313
MRS. CATHERINE ANNE BARBOUR MSW
Social Worker
1350 S HICKORY ST, CASE MANAGEMENT DEPARTMENT
MELBOURNE, FL 32901
Brevard County (321) 434-1570
DR. JULIO DANIEL VALLETTE JR. M.D.
Pediatrics (Neonatal-Perinatal Medicine)
1350 S HICKORY ST
MELBOURNE, FL 32901
Brevard County (321) 434-7243
MS. JAN L GARDNER ARNP
Nurse Practitioner (Family)
1350 S HICKORY ST, HRMC/HOSPITALIST PROGRAM
MELBOURNE, FL 32901
Brevard County (321) 434-1771
DR. BRENT D BRANDON M.D.
Radiology (Diagnostic Radiology)
1350 S HICKORY ST, HOLMES REGIONAL MEDICAL CENTER/RADIOLOGY
MELBOURNE, FL 32901
Brevard County (321) 434-7313
DR. CATHERINE L GARDNER M.D.
Radiology (Diagnostic Radiology)
1350 S HICKORY ST, HOLMES REGIONAL MEDICAL CENTER
MELBOURNE, FL 32901
Brevard County (321) 434-7313

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 William Jackson's NPI number?

The NPI number for William Jackson is 1841243920. It was assigned to this individual provider in the NPPES registry on May 18, 2006.

Where is William Jackson located?

William Jackson practices at 1350 S Hickory St, Melbourne, FL 32901. The listed phone number is (321) 434-4225.

What is William Jackson's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.

When was this NPI record last updated?

The NPPES record for William Jackson was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 39 days 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.