NPPES file of Aug 9, 2026

Andrew John Friessen, D.O.

Orthopaedic Surgery Physician · Fairfield, IA

Andrew John Friessen, D.O. is an orthopaedic surgery physician with a practice address in Fairfield, Iowa, and NPI 1083891675, issued on Jan 25, 2008. Check the license (Iowa DO-4433, 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
1083891675
Name
Andrew John Friessen
Credential
D.O.
Primary taxonomy
Orthopaedic Surgery Physician 207X00000X
License numbers
DO-4433 IA
5101016427 MI
Self-reported in NPPES; status is on the state search
Practice location
2000 S Main, Fairfield, IA 52556
Phone
(641) 469-4204
Enumerated
Jan 25, 2008
Record last updated
Apr 27, 2026
Fax
(641) 469-4208
Medicaid ID
1083891675 IA
Medicare enrollment
Enrolled (PECOS I20130806000774); accepts Medicare assignment
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 2000 S Main

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

  1. Beth Hothanzielinski, MDSurgery Physician1982683298

Verify Andrew John Friessen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIowa Board of Medicine
    Search for license DO-4433
    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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35% fewer Medicare Part D claims than the average orthopaedic surgery physician in 2024

225 Medicare Part D claims for 56 beneficiaries, against an average of 346 among the 16,516 providers of this specialty who prescribed in Part D. 51 claims were for opioids.

  1. Andrew Friessen225
  2. Specialty average346

Most prescribed

  1. Diclofenac Sodium21 claims
  2. Oxycodone Hcl21 claims
  3. Prednisone18 claims
  4. Hydrocodone-Acetaminophen16 claims
  5. Celecoxib15 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.

Bills Medicare through one group practice

  1. Jefferson County HospitalFairfield, IA

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

Andrew John Friessen among 257 orthopaedic surgery physician records in Iowa

Andrew John Friessen, D.O. is one of 257 orthopaedic surgery physician records with a practice address in Iowa. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 58% of them.

  • NPI issued2008 · 58% of these records are older, 38% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated2005 · median 2004 among the 151 with a school on file
  • Record last updated2026 · 42% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207X00000X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Orthopaedic Surgery Physician providers in Iowa

There are 257 orthopaedic surgery physician records in Iowa.

The 8 orthopaedic surgery physician records with the nearest ZIP codes

  1. Jon Gehrke, MDOskaloosa, IA 525771326002734
  2. Nathan SchneiderOskaloosa, IA 525771790348902
  3. Michael Hendricks, MDBurlington, IA 526011568482446
  4. Nathan NicholsonOttumwa, IA 525011972860476
  5. Mark Calkins, MDFort Madison, IA 526271770516353
  6. Brent Woodbury, M.D.Fort Madison, IA 526271558412130
  7. Kirk Green, D.O.Keokuk, IA 526321982607487
  8. Scott Gleason, D.O., MSC.West Burlington, IA 526551225454044

Common questions

What is Andrew John Friessen, D.O.'s NPI number?

Andrew John Friessen, D.O.'s National Provider Identifier (NPI) is 1083891675, issued on Jan 25, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Andrew John Friessen, D.O. located?

The NPPES record lists a practice address at 2000 S Main, Fairfield, IA, 52556. Phone: (641) 469-4204. Providers update this record themselves, so call before visiting.

How can I verify Andrew John Friessen, D.O.'s license?

NPPES lists Iowa license number DO-4433, 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 Andrew John Friessen, D.O. prescribe under Medicare Part D?

In 2024, Andrew John Friessen, D.O. had 225 Medicare Part D claims for 56 beneficiaries; the average among orthopaedic surgery physician prescribers was 346. 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.