John Gary Armstrong, M.D.
Surgery Physician · Storm Lake, IA
John Gary Armstrong, M.D. is a surgery physician with a practice address in Storm Lake, Iowa, and NPI 1487948824, issued on Jun 2, 2011. Check the license (Iowa 44498, as entered in NPPES) on the Iowa Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- John Gary Armstrong
- Credential
- M.D.
- Primary taxonomy
- Surgery Physician 208600000X
- License number
- 44498 IA
Self-reported in NPPES; status is on the state search - Practice location
- 210 East 5TH St, Storm Lake, IA 50588
- Phone
- (712) 213-4750
- Enumerated
- Jun 2, 2011
- Record last updated
- Mar 19, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (712) 213-5230
- Medicare enrollment
- Enrolled (PECOS I20170824003359); accepts Medicare assignment
- Medical or professional school
- University Of Iowa, Rj & L Carver College Of Medicine, 2011
- Entity
- Type 1 · individual
8 nearest surgery physician records → All 437 in Iowa → Look up another NPI →
Verify John Gary Armstrong in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIowa Board of Medicine
Search for license 44498Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average surgery physician in 2024
14 Medicare Part D claims for 11 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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: $71.43
1 payment: food and beverage; the largest payer was Stryker Corporation. The 17,103 providers of this specialty with any payment received $3,513.80 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.
One hospital affiliation
- Buena Vista Regional Medical CenterStorm Lake, IA · Critical Access Hospitals2 of 5 stars
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.
John Gary Armstrong among 437 surgery physician records in Iowa
John Gary Armstrong, M.D. is one of 437 surgery physician records with a practice address in Iowa. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 52% of them.
- NPI issued2011 · 52% of these records are older, 46% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2011 · median 2005 among the 218 with a school on file
- Record last updated2018 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
2 surgery physician records list a practice address in Storm Lake
They are 2 of the 182 NPPES records with a practice address in Storm Lake, and 437 surgery physician records in Iowa.
All 437 in Iowa → Every provider in Storm Lake → Surgery Physician nationwide →
The 8 surgery physician records with the nearest ZIP codes
- Jason Dierking, M.D.Storm Lake, IA 505881477675940
- Alan Scher, MD.Swea City, IA 505901457356008
- Gayette Grimm, MDWebster City, IA 505951194720755
- Moiz Dawood, M.D.Cedar Falls, IA 506131326459603
- John Glascock, MDCedar Falls, IA 506131366479750
- Nicholas Kuiper, D.O.Cedar Falls, IA 506131972517852
- Angela VangilderCharles City, IA 506161346477007
- Randolfo De Leon, M.D.Independence, IA 506441356483663
Common questions
What is John Gary Armstrong, M.D.'s NPI number?
John Gary Armstrong, M.D.'s National Provider Identifier (NPI) is 1487948824, issued on Jun 2, 2011. An NPI identifies a provider in billing; it is not a license.
Where is John Gary Armstrong, M.D. located?
The NPPES record lists a practice address at 210 East 5TH St, Storm Lake, IA, 50588. Phone: (712) 213-4750. Providers update this record themselves, so call before visiting.
How can I verify John Gary Armstrong, M.D.'s license?
NPPES lists Iowa license number 44498, 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 John Gary Armstrong, M.D. prescribe under Medicare Part D?
In 2024, John Gary Armstrong, M.D. had 14 Medicare Part D claims for 11 beneficiaries; the average among surgery physician prescribers was 147. 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.