Gregory Iwaasa, DPM
Foot & Ankle Surgery Podiatrist · Bismarck, ND
Gregory Iwaasa, DPM is a foot & ankle surgery podiatrist with a practice address in Bismarck, North Dakota, and NPI 1215244041, issued on Aug 31, 2010. Check the license with the North Dakota board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Gregory Iwaasa
- Credential
- DPM
- Primary taxonomy
- Foot & Ankle Surgery Podiatrist 213ES0103X
- License number
- SC006202 PA
Self-reported in NPPES; status is on the state search - Practice location
- 401 N 9TH St, Bismarck, ND 58501
- Phone
- (701) 530-6000
- Enumerated
- Aug 31, 2010
- Record last updated
- Sep 16, 2013 (not updated in 13 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20190227002901); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest foot & ankle surgery podiatrist records → All 21 in North Dakota → Look up another NPI →
Also registered at 401 N 9TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Gregory Iwaasa in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich North Dakota board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
63% fewer Medicare Part D claims than the average foot & ankle surgery podiatrist in 2024
123 Medicare Part D claims for 74 beneficiaries, against an average of 335 among the 7,761 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 31 claims were for opioids.
Most prescribed
- Oxycodone-Acetaminophen19 claims
- Cephalexin17 claims
- Amoxicillin-Clavulanate Potass15 claims
- Terbinafine Hcl11 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.
The MIPS final score for 2023 (Medicare payment program): 63.4 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $19.60
1 payment: food and beverage; the largest payer was Bioventus LLC. The 6,936 providers of this specialty with any payment received $2,972.24 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
- Gila Regional Medical CenterSilver City, NM · 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.
Gregory Iwaasa among 21 foot & ankle surgery podiatrist records in North Dakota
Gregory Iwaasa, DPM is one of 21 foot & ankle surgery podiatrist records with a practice address in North Dakota. 100% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 43% of them.
- NPI issued2010 · 43% of these records are older, 48% newer
- In a Medicare fileYes · 100% of these records are
- In the CMS Doctors and Clinicians fileYes · 100% of these records are
- Graduated2010 · median 2010 among the 21 with a school on file
- Record last updated2013 · 43% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 213ES0103X and a North Dakota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Foot & Ankle Surgery Podiatrist providers in North Dakota
There are 21 foot & ankle surgery podiatrist records in North Dakota.
All 21 in North Dakota → Every provider in Bismarck → Foot & Ankle Surgery Podiatrist nationwide →
The 8 foot & ankle surgery podiatrist records with the nearest ZIP codes
- Brian Gale, DPMBismarck, ND 585011902873458
- Eric Hart, D.P.M.Bismarck, ND 585011942497243
- Andrew Knudsen, DPMBismarck, ND 585011407111321
- Kevin Koester, DPMBismarck, ND 585011518078583
- Spencer ArndtJamestown, ND 584011508501685
- Clark Fullmer, DPMDickinson, ND 586011649240557
- Rachael Renschler, DPMJamestown, ND 584011043574460
- Aaron Albers, DPMMinot, ND 587011295044212
Common questions
What is Gregory Iwaasa, DPM's NPI number?
Gregory Iwaasa, DPM's National Provider Identifier (NPI) is 1215244041, issued on Aug 31, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Iwaasa, DPM located?
The NPPES record lists a practice address at 401 N 9TH St, Bismarck, ND, 58501. Phone: (701) 530-6000. Providers update this record themselves, so call before visiting.
How can I verify Gregory Iwaasa, DPM's license?
Search the North Dakota board that licenses this profession; the NPPES record confirms identity only.
How much does Gregory Iwaasa, DPM prescribe under Medicare Part D?
In 2024, Gregory Iwaasa, DPM had 123 Medicare Part D claims for 74 beneficiaries; the average among foot & ankle surgery podiatrist prescribers was 335. Part D covers Medicare prescriptions only.
What is Gregory Iwaasa, DPM's MIPS final score?
The 2023 MIPS final score is 63.4 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.