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Anesthesiology

James W. Aragones, DO

Works at hospitals in Owosso, MI · Michigan

Summary

Dr. James W. Aragones, DO is an anesthesiologist at 620 Byron Rd, Howell, MI 48843. Phone: (517) 545-6316. Accepts Medicare assignment. In 2024, James W. Aragones had 313 Original Medicare patients and 355 services. NPI 1912059841. 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: Anesthesiologist (Medicare lists Anesthesiology)
  • Address: 620 Byron Rd, Howell, MI 48843 · Directions (1 more location)
  • Phone: (517) 545‑6316
  • Medicare: Accepts Medicare assignment
  • Hospital: Memorial Healthcare
  • Group practice: Anesthesia Associates of Ann Arbor PLLC (+1 more)
  • Medical school: Michigan State University College Of Osteopathic Medicine · graduated 1990 (36 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about James W. Aragones, 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 James W. Aragones accept Medicare assignment?
Yes. Medicare's clinician data says James W. Aragones 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 James W. Aragones see?
In 2024, CMS data shows 313 Original Medicare patients and 355 services for James W. Aragones. This counts Original Medicare only and measures volume, not quality.
What is James W. Aragones's NPI number?
1912059841. 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 James W. Aragones, 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 patients313
Services billed to Medicare355
Different services or procedures53
Participating Medicare providerYes
Average age of these patients71

Most frequent services

  1. Anesthesia for other procedure on large bowel using an endoscope (00811)51 services
  2. Anesthesia for lens surgery (00142)46 services
  3. Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)42 services
  4. Anesthesia for procedure on small and large bowel using an endoscope (00813)26 services
  5. Anesthesia for procedure for total knee joint replacement (01402)16 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%
  • Arthritis58%
  • Diabetes35%
  • Anxiety34%
  • Ischemic heart disease33%

Hospitals where James W. Aragones works

Medicare's Facility Affiliation Data lists James W. Aragones 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.

  • Memorial HealthcareOwosso, MI · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 230121

Practice locations

Addresses where James W. Aragones is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists James W. Aragones as a member of these groups (CMS data updated October 2, 2026).

  • Anesthesia Associates of Ann Arbor PLLC219 clinicians in the group
  • Memorial Hospital214 clinicians in the group

Specialties

Find other Anesthesiology doctors in Michigan →

Other anesthesiologists in Howell

Clinicians with the same Medicare primary specialty in Howell, MI — not a recommendation.

All anesthesiologists in Howell →

Other clinicians in Anesthesia Associates of Ann Arbor PLLC

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

Clinician information

CredentialDO
Medical schoolMichigan State University College Of Osteopathic Medicine
Graduation year1990 (36 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1912059841
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