NPPES file of Aug 9, 2026

Stephen Ambrose Barnes, D.O.

Emergency Medicine Physician · Pella, IA

Stephen Ambrose Barnes, D.O. is an emergency medicine physician with a practice address in Pella, Iowa, and NPI 1609197573, issued on Jun 15, 2010. Check the license (Iowa 4225, as entered in NPPES) on the Iowa Board of Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1609197573
Name
Stephen Ambrose Barnes
Credential
D.O.
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
4225 IA
Self-reported in NPPES; status is on the state search
Practice location
405 Monroe St, Pella, IA 50219
Phone
(641) 628-3832
Enumerated
Jun 15, 2010
Record last updated
Jun 30, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(641) 621-2335
Medicare enrollment
Enrolled (PECOS I20111216000067); accepts Medicare assignment
Medical or professional school
Des Moines University Of Osteopathic Medicine And Health Sciences, 2010
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 405 Monroe St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Jamie Amble, CNPFamily Nurse Practitioner1972808079
  2. Kennan Archer, D.P.T.Physical Therapist1720211642
  3. Russell Bandstra, M.D.Urology Physician1619948098
  4. Brenda Birdsell, OTROccupational Therapist1780952846
  5. Mitchell Blom, D.O.Family Medicine Physician1558341917
  6. John Cambron, DOEmergency Medicine Physician1376077321

Verify Stephen Ambrose Barnes in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIowa Board of Medicine
    Search for license 4225
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Iowa license search

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1% more Medicare Part D claims than the average emergency medicine physician in 2024

228 Medicare Part D claims for 163 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 48 claims were for opioids.

  1. Stephen Barnes228
  2. Specialty average226

Most prescribed

  1. Hydrocodone-Acetaminophen37 claims
  2. Ondansetron Hcl22 claims
  3. Cephalexin18 claims
  4. Prednisone18 claims
  5. Sulfamethoxazole-Trimethoprim11 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $22.41

1 payment: food and beverage; the largest payer was Abbott Laboratories. The 12,335 providers of this specialty with any payment received $953.79 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Stephen Barnes$22.41
  2. Specialty average$953.79

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

One hospital affiliation

  1. Pella Regional Health CenterPella, IA · Critical Access Hospitals4 of 5 stars

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

5 emergency medicine physician records list a practice address in Pella

They are 5 of the 318 NPPES records with a practice address in Pella, and 509 emergency medicine physician records in Iowa.

Other emergency medicine physician records in Iowa

  1. Javaid Abbasi, D.O.Des Moines, IA1831127562
  2. Agustin Aguilar, MDIowa City, IA1649252503
  3. Mohan Akella, MDKnoxville, IA1346239597
  4. Omar Alazem, DODavenport, IA1780320697
  5. Jeffrey Allgood, MDMuscatine, IA1336122308
  6. Hiba Anaqrah, MDIowa City, IA1417516428
  7. Karl Anderson, DOCedar Rapids, IA1679533004
  8. Samantha Anderson, DOIowa City, IA1538095435
  9. Unique Andres, MDIowa City, IA1568155232
  10. John Ankeny, D.O.Des Moines, IA1609943166

Common questions

What is Stephen Ambrose Barnes, D.O.'s NPI number?

Stephen Ambrose Barnes, D.O.'s National Provider Identifier (NPI) is 1609197573, issued on Jun 15, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Stephen Ambrose Barnes, D.O. located?

The NPPES record lists a practice address at 405 Monroe St, Pella, IA, 50219. Phone: (641) 628-3832. Providers update this record themselves, so call before visiting.

How can I verify Stephen Ambrose Barnes, D.O.'s license?

NPPES lists Iowa license number 4225, as entered by the provider. Search the Iowa Board of Medicine at https://dial.iowa.gov/about-dial/boards-and-commissions/medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Stephen Ambrose Barnes, D.O. prescribe under Medicare Part D?

In 2024, Stephen Ambrose Barnes, D.O. had 228 Medicare Part D claims for 163 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.