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Neurosurgery

Solomon M. Ondoma, MD

Works at hospitals in Charles City, IA · Algona, IA · New Hampton, IA … · Iowa

Summary

Dr. Solomon M. Ondoma, MD is a neurosurgeon at 1010 4th St SW, 105 Mercyone North Iowa Neurosurgery Care, Mason City, IA 50401. Phone: (641) 428-7847. Accepts Medicare assignment. In 2024, Solomon M. Ondoma had 312 Original Medicare patients and 1,040 services. NPI 1346538527. 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 Solomon M. Ondoma, 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 Solomon M. Ondoma accept Medicare assignment?
Yes. Medicare's clinician data says Solomon M. Ondoma 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 Solomon M. Ondoma see?
In 2024, CMS data shows 312 Original Medicare patients and 1,040 services for Solomon M. Ondoma. This counts Original Medicare only and measures volume, not quality.
What is Solomon M. Ondoma's NPI number?
1346538527. 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 Solomon M. Ondoma, 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 patients312
Services billed to Medicare1,040
Different services or procedures54
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)269 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)99 services
  3. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)89 services
  4. Fusion of additional segment of spine (22614)76 services
  5. New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)62 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%
  • Arthritis75%
  • Ischemic heart disease36%
  • Anxiety35%
  • Depression33%

Hospitals where Solomon M. Ondoma works

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

  • 1010 4th St SW, 105 Mercyone North Iowa Neurosurgery CareMason City, IA 50401 (641) 428‑7847
  • 330 Laurel St, Suite 1200Des Moines, IA 50314

Group practices

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

  • Mercy Clinics Inc443 clinicians in the group
  • North Iowa Mercy Clinics302 clinicians in the group

Specialties

Find other Neurosurgery doctors in Iowa →

Other neurosurgeons in Iowa

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

All neurosurgeons in Iowa →

Other clinicians in Mercy Clinics Inc

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

Clinician information

CredentialMD
Graduation year2004 (22 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1346538527
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