Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

General Surgery

William A. Ball Jr., MD

Works at hospitals in Alexandria, LA · Natchitoches, LA · Louisiana

Summary

Dr. William A. Ball Jr., MD is a general surgeon at 501 Keyser Ave, Natchitoches, LA 71457. Phone: (318) 354-2555. Accepts Medicare assignment. In 2024, William A. Ball Jr. had 266 Original Medicare patients and 653 services. NPI 1689785396. 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.

From official Medicare data

This page shows what Medicare's official clinician data says about William A. Ball 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 William A. Ball Jr. accept Medicare assignment?
Yes. Medicare's clinician data says William A. Ball 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 William A. Ball Jr. see?
In 2024, CMS data shows 266 Original Medicare patients and 653 services for William A. Ball Jr.. This counts Original Medicare only and measures volume, not quality.
What is William A. Ball Jr.'s NPI number?
1689785396. 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 William A. Ball 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 patients266
Services billed to Medicare653
Different services or procedures100
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)75 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)57 services
  3. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)49 services
  4. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)46 services
  5. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)38 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 blood pressure75%
  • High cholesterol75%
  • Arthritis50%
  • Diabetes41%
  • Chronic kidney disease31%
  • Ischemic heart disease28%

Hospitals where William A. Ball Jr. works

Medicare's Facility Affiliation Data lists William A. Ball 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 William A. Ball Jr. is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists William A. Ball Jr. as a member of this group (CMS data updated October 2, 2026).

  • NRMC Physician Ipa Inc30 clinicians in the group

Specialties

Find other General Surgery doctors in Louisiana →

Other general surgeons in Louisiana

Clinicians with the same Medicare primary specialty in Louisiana — not a recommendation.

All general surgeons in Louisiana →

Other clinicians in NRMC Physician Ipa Inc

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolLouisiana State University School Of Medicine In New Orleans
Graduation year1995 (31 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1689785396
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