Christopher James Rierson, DO
Orthopaedic Surgery Physician · Spencer, IA
Christopher James Rierson, DO is an orthopaedic surgery physician with a practice address in Spencer, Iowa, and NPI 1912173741, issued on May 1, 2008. Check the license (Iowa 4395, as entered in NPPES) on the Iowa Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Christopher James Rierson
- Credential
- DO
- Primary taxonomy
- Orthopaedic Surgery Physician 207X00000X
- License number
- 4395 IA
Self-reported in NPPES; status is on the state search - Practice location
- 1200 1St Ave E, Spencer, IA 51301
- Phone
- (712) 262-7511
- Enumerated
- May 1, 2008
- Record last updated
- Oct 1, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (712) 262-3658
- Medicare enrollment
- Enrolled (PECOS I20130905000406); accepts Medicare assignment
- Medical or professional school
- University Of Iowa, Rj & L Carver College Of Medicine, 1999
- Entity
- Type 1 · individual
8 nearest orthopaedic surgery physician records → All 257 in Iowa → Look up another NPI →
Also registered at 1200 1St Ave E
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Cameron Andela, STUDENTCertified Registered Nurse Anesthetist1740867241
- Eric Anderson, CRNACertified Registered Nurse Anesthetist1205801917
- Paul Anderson, D.O.Psychiatry Physician1215924006
- Robert Appel, CRNACertified Registered Nurse Anesthetist1790750495
- Benjamin Armstrong, CRNACertified Registered Nurse Anesthetist1174845564
- Laura Armstrong, ARNPHospitalist Physician1548782964
Verify Christopher James Rierson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIowa Board of Medicine
Search for license 4395Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
82% more Medicare Part D claims than the average orthopaedic surgery physician in 2024
630 Medicare Part D claims for 247 beneficiaries, against an average of 346 among the 16,516 providers of this specialty who prescribed in Part D. 83 claims were for opioids.
Most prescribed
- Cephalexin132 claims
- Chlorhexidine Gluconate94 claims
- Mupirocin90 claims
- Diclofenac Sodium89 claims
- Methylprednisolone55 claims
- Oxycodone Hcl32 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.
3 hospitals and group practices
- Spencer Municipal HospitalSpencer, IA · Acute Care Hospitals4 of 5 stars
- Avera MckennanWorthington, MN
- Lakes Regional HealthcareWorthington, MN
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.
Christopher James Rierson among 257 orthopaedic surgery physician records in Iowa
Christopher James Rierson, DO 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
- Graduated1999 · median 2004 among the 151 with a school on file
- Record last updated2013 · 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).
5 orthopaedic surgery physician records list a practice address in Spencer
They are 5 of the 346 NPPES records with a practice address in Spencer, and 257 orthopaedic surgery physician records in Iowa.
All 257 in Iowa → Every provider in Spencer → Orthopaedic Surgery Physician nationwide →
The 8 orthopaedic surgery physician records with the nearest ZIP codes
- John Follows, M.D.Spencer, IA 513011508869413
- Jason Hough, D.O.Spencer, IA 513011831155126
- Andrew Pick, DOSpencer, IA 513011306144464
- Alexander Pruitt, MDSpencer, IA 513011760599450
- John Leupold, MDSpirit Lake, IA 513601548290182
- Richard Goding, M.D.Carroll, IA 514011962434852
- Diane Tran, MDCarroll, IA 514011174784482
- James Froggatt, MDSioux City, IA 511041700980919
Common questions
What is Christopher James Rierson, DO's NPI number?
Christopher James Rierson, DO's National Provider Identifier (NPI) is 1912173741, issued on May 1, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Christopher James Rierson, DO located?
The NPPES record lists a practice address at 1200 1St Ave E, Spencer, IA, 51301. Phone: (712) 262-7511. Providers update this record themselves, so call before visiting.
How can I verify Christopher James Rierson, DO's license?
NPPES lists Iowa license number 4395, 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 Christopher James Rierson, DO prescribe under Medicare Part D?
In 2024, Christopher James Rierson, DO had 630 Medicare Part D claims for 247 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.