Gary A. Knudson, MD
Orthopaedic Surgery Physician · Waterloo, IA
Gary A. Knudson, MD is an orthopaedic surgery physician with a practice address in Waterloo, Iowa, and NPI 1700813441, issued on Jun 27, 2006. Check the license (Iowa 32397, as entered in NPPES) on the Iowa Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Gary A. Knudson
- Credential
- MD
- Primary taxonomy
- Orthopaedic Surgery Physician 207X00000X
- License number
- 32397 IA
Self-reported in NPPES; status is on the state search - Practice location
- 2710 Saint Francis Dr, Waterloo, IA 50702
- Phone
- (319) 272-5000
- Enumerated
- Jun 27, 2006
- Record last updated
- Jul 16, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (391) 272-4780
- Medicaid ID
- 1957670 IA
- Medicare enrollment
- Enrolled (PECOS I20100513000254); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest orthopaedic surgery physician records → All 257 in Iowa → Look up another NPI →
Also registered at 2710 Saint Francis Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Jon Beyer, BS PHARM, R. PH.Pharmacist1801005574
Verify Gary A. Knudson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIowa Board of Medicine
Search for license 32397Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
64% fewer Medicare Part D claims than the average orthopaedic surgery physician in 2024
125 Medicare Part D claims for 67 beneficiaries, against an average of 346 among the 16,516 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Amoxicillin86 claims
- Clindamycin Hcl24 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: $383.85
15 payments; by number, the most common kind was food and beverage; the largest payer was DePuy Synthes Sales Inc. The 15,003 providers of this specialty with any payment received $23,022.89 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Covenant Medical Center IncCedar Falls, IA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gary A. Knudson among 257 orthopaedic surgery physician records in Iowa
Gary A. Knudson, MD 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 2006, is newer than 17% of them.
- NPI issued2006 · 17% of these records are older, 47% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated1990 · median 2004 among the 151 with a school on file
- Record last updated2007 · 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.
All 257 in Iowa → Every provider in Waterloo → Orthopaedic Surgery Physician nationwide →
The 8 orthopaedic surgery physician records with the nearest ZIP codes
- Christopher Eagan, DOWaterloo, IA 507021861448128
- Richard Naylor, DOWaterloo, IA 507021750317756
- Robert Bartelt, MDWaterloo, IA 507031851411532
- Jim Crouse, MDWaterloo, IA 507011821042516
- Thomas Gorsche, MDWaterloo, IA 507031568416196
- Mark Gorsche, M.D.Waterloo, IA 507031356789390
- Rafael Serrano Riera, M.D.Waterloo, IA 507011235589599
- Douglas Cooper, MDGrundy Center, IA 506381770576050
Common questions
What is Gary A. Knudson, MD's NPI number?
Gary A. Knudson, MD's National Provider Identifier (NPI) is 1700813441, issued on Jun 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gary A. Knudson, MD located?
The NPPES record lists a practice address at 2710 Saint Francis Dr, Waterloo, IA, 50702. Phone: (319) 272-5000. Providers update this record themselves, so call before visiting.
How can I verify Gary A. Knudson, MD's license?
NPPES lists Iowa license number 32397, 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 Gary A. Knudson, MD prescribe under Medicare Part D?
In 2024, Gary A. Knudson, MD had 125 Medicare Part D claims for 67 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.