Dr. Christopher James Rierson, DO
- Medicare services, 2024
- 3,423
- Medicare patients, 2024
- 914
- Part D claims, 2024
- 630
- Hospital affiliations
- 5
- Industry payments
- $4,015
- Practice address
- 2408 Zenith Ave, Spirit Lake, IA 51360
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Northwest Iowa Bone Joint and Sports Surgeons PC - HOPD
Acute Care Hospital outpatient department · Spirit Lake, Iowa
Find Dr. Rierson's professional email, personal email and mobile number
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Dr. Christopher James Rierson is an orthopedic surgeon in Spirit Lake, Iowa
Dr. Rierson practices at Northwest Iowa Bone Joint and Sports Surgeons PC - HOPD in Spirit Lake, Iowa.
Dr. Rierson's NPI, 1912173741, was assigned on May 1, 2008. Dr. Rierson graduated from University of Iowa, RJ & L Carver College of Medicine in 1999. Dr. Rierson holds Iowa license 4395.
- NPI
- 1912173741NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0244473585
- NPI enumeration date
- May 1, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 53
- Medical school graduation
- 1999
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Christopher James Rierson practices at Northwest Iowa Bone Joint and Sports Surgeons PC - HOPD in Spirit Lake, Iowa
Dr. Rierson's primary practice is Northwest Iowa Bone Joint and Sports Surgeons PC - HOPD, at 2408 Zenith Ave, Spirit Lake, IA 51360.
- Northwest Iowa Bone Joint and Sports Surgeons PC - HOPD2408 Zenith Ave, Spirit Lake, IA 51360
Source: Dmand AI Affiliation Data
Dr. Christopher James Rierson is affiliated with 7 sites of care and 3 medical groups
Dr. Rierson's primary practice is Northwest Iowa Bone Joint and Sports Surgeons PC - HOPD in Spirit Lake, Iowa. Dr. Rierson is also affiliated with Lakes Regional Healthcare. The medical group on file is Avera McKennan Hospital & University Health Center. Dmand AI also links Dr. Rierson to 4 more hospitals, 2 medical groups and 1 group practice or clinic, each named with a free account. Dr. Rierson's employer is on file too: a hospital.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Christopher James Rierson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Rierson practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Northwest Iowa Bone Joint and Sports Surgeons PC - HOPD | Available with a free account |
| +6 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Christopher James Rierson is one of 219 orthopedic surgeons in Iowa
Orthopaedic surgery is Dr. Rierson's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Rierson is licensed in Iowa.
Specialties and state licenses
- Orthopaedic surgery, IowaPrimary
Orthopedic surgeons near Dr. Rierson
Counts of orthopedic surgeons with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Christopher James Rierson billed Medicare for 3,423 services in 2024
CMS data shows 3,423 Medicare services from Dr. Rierson across 27 procedure codes in 2024, for 914 Medicare patients. Medicare paid $164,597 for them.
Dr. Rierson's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 9462024: 1,09215%
- Office and hospital visits
- 2023: 1,1852024: 1,00215%
- Drugs given in the office
- 2023: 6002024: 69616%
- Imaging
- 2023: 6912024: 6338%
Where Dr. Rierson's Medicare services took place, 2024
- In an office92227%
- In a facility2,50173%
Dr. Rierson compared with the Iowa median for orthopedic surgeons, 2024
- Dr. Rierson
- Iowa median
- Medicare services
- 3,423vs 1,0263.3 times
- Medicare patients
- 914vs 2853.2 times
- Part D claims
- 605vs 1006.0 times
Medians across 221 orthopedic surgeons in Iowa with Dmand AI profiles that report each measure.
Dr. Rierson's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Rierson and other orthopedic surgeons in Iowa.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Christopher James Rierson treated 914 Medicare patients in 2024, average age 75
CMS counts 914 Medicare patients who saw Dr. Rierson in 2024. The largest group is 65 to 74, with 423 patients. 69% of them have high blood pressure, and 66% have high cholesterol. 5% are also on Medicaid. Their average risk score is 1.02, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Rierson's median patient age at 70, with 60% women.
Dr. Rierson's Medicare patients by age, 2024
Dr. Rierson's Medicare patients by sex, 2024
- Women59165%
- Men32335%
Chronic conditions among Dr. Rierson's Medicare patients, 2024
- High blood pressure69%
- High cholesterol66%
- Arthritis64%
- Chronic kidney disease26%
- Diabetes24%
- Anxiety21%
- Mood disorders21%
- Depression20%
Share of Medicare patients with each condition. A patient can have several.
Dr. Rierson's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women60%
- Men39%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Christopher James Rierson wrote 630 Medicare Part D claims in 2024
In 2024, Dr. Rierson wrote 630 Medicare Part D claims for 247 patients. 100% of them were for generic drugs. CMS names the drug for 605 of them, across 12 drugs with 11 or more claims each, at $2,941 in total drug cost. In 2023, CMS named 522 claims across 10 drugs.
Dr. Rierson's Part D claims by kind of drug, 2024
- Generic629 claims100%
- Brand-name and other1 claims0%
Dr. Rierson's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Rierson's Part D claims, 2024
- Opioids13%83 of 630 claims
- Antibiotics25%158 of 630 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 5222024: 60516%
Drugs named by CMS: 12 in 2024, 10 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Christopher James Rierson ranks in the 84th percentile for knee replacement in Medicare
Dr. Rierson accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 61 procedures of knee replacement by Dr. Rierson, more than 84% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Rierson ranks in Medicare procedure volume
- Knee replacement
- 84th percentile61 procedures
- Hip replacement
- 82nd percentile39 procedures
- Upper limb (arm) arthroscopy (minimally invasive joint repair)
- 66th percentile22 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Lower limb (leg) arthroscopy (minimally invasive joint repair): 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Christopher James Rierson received $4,015 in industry payments from 2016 to 2021
CMS Open Payments shows 53 general payments to Dr. Rierson from 2 drug and device companies from 2016 to 2021. Travel and lodging make up the largest share, 54% of the total. Stryker Corporation paid the most, $3,987.
General payments to Dr. Rierson by program year, 2016 to 2021
General payments to Dr. Rierson by kind, 2016 to 2021
- Travel and lodging$2,17154%
- Food and beverage$1,84446%
Companies that paid Dr. Rierson the most, 2016 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Christopher James Rierson graduated from University of Iowa, RJ & L Carver College of Medicine
Dr. Rierson graduated from University of Iowa, RJ & L Carver College of Medicine in 1999.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Christopher James Rierson's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Christopher James Rierson
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Christopher James Rierson's NPI number?
Dr. Christopher James Rierson's NPI number is 1912173741. It was assigned on May 1, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Christopher James Rierson?
Dr. Christopher James Rierson is an orthopedic surgeon in Spirit Lake, Iowa. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. Christopher James Rierson practice?
Dr. Rierson practices at 2408 Zenith Ave, Spirit Lake, IA 51360. Dr. Rierson's primary practice is Northwest Iowa Bone Joint and Sports Surgeons PC - HOPD in Spirit Lake, Iowa. Dmand AI also links Dr. Rierson to 4 hospitals, 2 medical groups and 1 group practice or clinic.
What is Dr. Christopher James Rierson's medical license number?
Dr. Rierson holds Iowa license 4395.
Which hospitals is Dr. Christopher James Rierson affiliated with?
Dr. Rierson is affiliated with Lakes Regional Healthcare. Dmand AI links Dr. Rierson to 4 more hospitals.
What medical group is Dr. Christopher James Rierson part of?
Dr. Rierson is linked to Avera McKennan Hospital & University Health Center. Dmand AI links Dr. Rierson to 2 more medical groups.
Does Dr. Christopher James Rierson accept Medicare?
Yes. CMS data shows Dr. Rierson billed Medicare for 3,423 services in 2024, and Dr. Rierson accepts Medicare assignment.
How many Medicare patients does Dr. Christopher James Rierson see?
CMS counts 914 Medicare patients who saw Dr. Rierson in 2024, with an average age of 75.
What services does Dr. Christopher James Rierson bill to Medicare?
In 2024, Dr. Rierson's most billed Medicare services were surgery: bones and joints (20610), injected or infused drug (J3301) and office visit, established patient (99213).
Where did Dr. Christopher James Rierson go to medical school?
Dr. Rierson graduated from University of Iowa, RJ & L Carver College of Medicine in 1999.
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What drugs does Dr. Christopher James Rierson prescribe most?
In 2024 Medicare Part D data, Dr. Rierson's most prescribed drugs by claims were Cephalexin, Chlorhexidine Gluconate and Mupirocin.
Has Dr. Christopher James Rierson received payments from drug or device companies?
CMS Open Payments shows $4,015 in general payments to Dr. Rierson from 2 companies from 2016 to 2021. The largest total came from Stryker Corporation.
How long has Dr. Christopher James Rierson been practicing?
Dr. Rierson graduated from medical school in 1999, 27 years ago.
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