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Neurosurgery

William M. Rambo Jr., MD

Works at hospitals in Fort Smith, AR · Joplin, MO · Arkansas, Missouri

Summary

Dr. William M. Rambo Jr., MD is a neurosurgeon at 100 Mercy Way, Joplin, MO 64804. Phone: (417) 556-8455. Accepts Medicare assignment. In 2024, William M. Rambo Jr. had 48 Original Medicare patients and 86 services. NPI 1619079753. 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: Neurosurgeon (Medicare lists Neurosurgery)
  • Address: 100 Mercy Way, Joplin, MO 64804 · Directions (1 more location)
  • Phone: (417) 556‑8455
  • Medicare: Accepts Medicare assignment
  • Hospitals: Mercy Hospital Fort Smith, Mercy Hospital Joplin
  • Group practice: Mercy Clinic Fort Smith Communities (+1 more)
  • Medical school: Medical University Of South Carolina College Of Medicine · graduated 1988 (38 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about William M. Rambo 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 M. Rambo Jr. accept Medicare assignment?
Yes. Medicare's clinician data says William M. Rambo 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 M. Rambo Jr. see?
In 2024, CMS data shows 48 Original Medicare patients and 86 services for William M. Rambo Jr.. This counts Original Medicare only and measures volume, not quality.
What is William M. Rambo Jr.'s NPI number?
1619079753. 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 M. Rambo 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 patients48
Services billed to Medicare86
Different services or procedures24
Participating Medicare providerYes
Average age of these patients77

Most frequent services

  1. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)17 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%
  • Arthritis63%
  • Anxiety50%
  • Chronic kidney disease50%
  • Heart failure50%

Hospitals where William M. Rambo Jr. works

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

Group practices

Medicare enrollment lists William M. Rambo Jr. as a member of these groups (CMS data updated October 2, 2026).

  • Mercy Clinic Fort Smith Communities372 clinicians in the group
  • Mercy Clinic Joplin LLC295 clinicians in the group

Specialties

Find other Neurosurgery doctors in Missouri →

Other neurosurgeons in Joplin

Clinicians with the same Medicare primary specialty in Joplin, MO — not a recommendation.

All neurosurgeons in Joplin →

Other clinicians in Mercy Clinic Fort Smith Communities

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

Clinician information

CredentialMD
Medical schoolMedical University Of South Carolina College Of Medicine
Graduation year1988 (38 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1619079753
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