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Internal Medicine

Joseph S. Moak Jr., MD

Works at hospitals in Brookhaven, MS · Mississippi

Summary

Dr. Joseph S. Moak Jr., MD is an internal medicine doctor at 1040 D A Biglane Dr, Brookhaven, MS 39601. Phone: (601) 833-5051. Accepts Medicare assignment. In 2024, Joseph S. Moak Jr. had 265 Original Medicare patients and 5,569 services. NPI 1184667800. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 1040 D A Biglane Dr, Brookhaven, MS 39601 · Directions
  • Phone: (601) 833‑5051
  • Medicare: Accepts Medicare assignment
  • Hospital: King's Daughters Medical Center-Brookhaven
  • Medical school: University Of Mississippi School Of Medicine · graduated 1978 (48 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Joseph S. Moak Jr., joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Joseph S. Moak Jr. accept Medicare assignment?
Yes. Medicare's clinician data says Joseph S. Moak Jr. accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Joseph S. Moak Jr. see?
In 2024, CMS data shows 265 Original Medicare patients and 5,569 services for Joseph S. Moak Jr.. This counts Original Medicare only and measures volume, not quality.
What is Joseph S. Moak Jr.'s NPI number?
1184667800. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Joseph S. Moak Jr., data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients265
Services billed to Medicare5,569
Different services or procedures53
Participating Medicare providerYes
Average age of these patients78

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)711 services
  2. X-ray of chest, 2 views (71046)533 services
  3. Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)497 services
  4. X-ray of lower and sacral spine, 2-3 views (72100)490 services
  5. Heart muscle strain imaging (93356)489 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High cholesterol75%
  • Diabetes75%
  • Arthritis75%
  • Ischemic heart disease75%
  • Chronic kidney disease75%
  • Heart failure75%

Hospitals where Joseph S. Moak Jr. works

Medicare's Facility Affiliation Data lists Joseph S. Moak Jr. at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Joseph S. Moak Jr. is enrolled with Medicare (CMS data updated October 2, 2026).

Specialties

Find other Internal Medicine doctors in Mississippi →

Other internal medicine doctors in Brookhaven

Clinicians with the same Medicare primary specialty in Brookhaven, MS — not a recommendation.

All internal medicine doctors in Brookhaven →

Clinician information

CredentialMD
Medical schoolUniversity Of Mississippi School Of Medicine
Graduation year1978 (48 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1184667800
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians