NPPES file of Aug 9, 2026

John M. Evelsizer Olson, PA-C

Surgical Physician Assistant · Decorah, IA

John M. Evelsizer Olson, PA-C is a surgical physician assistant with a practice address in Decorah, Iowa, and NPI 1639483001, issued on Jul 28, 2010. Check the license (Iowa 082179, as entered in NPPES) with the Iowa board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1639483001
Name
John M. Evelsizer Olson
Credential
PA-C
Primary taxonomy
Surgical Physician Assistant 363AS0400X
License number
082179 IA
Self-reported in NPPES; status is on the state search
Practice location
901 Montgomery St, Decorah, IA 52101
Phone
(563) 382-2911
Enumerated
Jul 28, 2010
Record last updated
Jan 13, 2025
Fax
(563) 387-3102
Medicaid ID
1639483001 IA
Medicare enrollment
Enrolled (PECOS I20160909001906); accepts Medicare assignment
Medical or professional school
University Of Colorado School Of Medicine, Denver, 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 901 Montgomery St

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

  1. Lydia AdamsCertified Registered Nurse Anesthetist1538584131
  2. Sarah Anderson, PT, DPT, SCSPhysical Therapist1518293091
  3. Lisa Barnes, MS, PA-CPhysician Assistant1265540710
  4. Larry Barthel, MDEmergency Medicine Physician1821079906
  5. Jennifer Becker, FNPNurse Practitioner1295380400
  6. Chelsey Bohr, PTPhysical Therapist1336786532

Verify John M. Evelsizer Olson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Iowa board licenses this profession
    Search for license 082179
    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
Find the Iowa license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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38% more Medicare Part D claims than the average surgical physician assistant in 2024

418 Medicare Part D claims for 185 beneficiaries, against an average of 304 among the 10,174 providers of this specialty who prescribed in Part D. 118 claims were for opioids.

  1. John Evelsizer Olson418
  2. Specialty average304

Most prescribed

  1. Meloxicam98 claims
  2. Oxycodone Hcl72 claims
  3. Celecoxib46 claims
  4. Tramadol Hcl32 claims
  5. Prednisone13 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.

The MIPS final score for 2023 (Medicare payment program): 97.6 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score86.5
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Winneshiek Medical CenterWest Union, IA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

John M. Evelsizer Olson among 58 surgical physician assistant records in Iowa

John M. Evelsizer Olson, PA-C is one of 58 surgical physician assistant records with a practice address in Iowa. 91% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 52% of them.

  • NPI issued2010 · 52% of these records are older, 47% newer
  • In a Medicare fileYes · 91% of these records are
  • In the CMS Doctors and Clinicians fileYes · 83% of these records are
  • Graduated2010 · median 2010 among the 48 with a school on file
  • Record last updated2025 · 55% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AS0400X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

3 surgical physician assistant records list a practice address in Decorah

They are 3 of the 282 NPPES records with a practice address in Decorah, and 58 surgical physician assistant records in Iowa.

The 8 surgical physician assistant records with the nearest ZIP codes

  1. Jesse Butler, PA-CDecorah, IA 521011376557769
  2. Andrea Wilson, PADecorah, IA 521011841282217
  3. Nathan Lombardi, P.A.- C.Dubuque, IA 520021811184567
  4. Ryan Anderson, PA-CIowa City, IA 522421184182305
  5. Margaret Dejaynes, PA-CIowa City, IA 522421932607009
  6. Lori Fuller, PA-CIowa City, IA 522421588643811
  7. Stephen Gunn, PA-CIowa City, IA 522421073511572
  8. Melissa Hoover, PA-CIowa City, IA 522421336370592

Common questions

What is John M. Evelsizer Olson, PA-C's NPI number?

John M. Evelsizer Olson, PA-C's National Provider Identifier (NPI) is 1639483001, issued on Jul 28, 2010. An NPI identifies a provider in billing; it is not a license.

Where is John M. Evelsizer Olson, PA-C located?

The NPPES record lists a practice address at 901 Montgomery St, Decorah, IA, 52101. Phone: (563) 382-2911. Providers update this record themselves, so call before visiting.

How can I verify John M. Evelsizer Olson, PA-C's license?

NPPES lists Iowa license number 082179, as entered by the provider. Search the Iowa board that licenses this profession; the NPPES record confirms identity only.

How much does John M. Evelsizer Olson, PA-C prescribe under Medicare Part D?

In 2024, John M. Evelsizer Olson, PA-C had 418 Medicare Part D claims for 185 beneficiaries; the average among surgical physician assistant prescribers was 304. Part D covers Medicare prescriptions only.

What is John M. Evelsizer Olson, PA-C's MIPS final score?

The 2023 MIPS final score is 97.6 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.