Carrissa Riggs, PA
Physician Assistant · Mason City, IA
Carrissa Riggs, PA is a physician assistant with a practice address in Mason City, Iowa, and NPI 1750913406, issued on Feb 11, 2020. Check the license (Iowa 099764, as entered in NPPES) with the Iowa board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Carrissa Riggs
- Credential
- PA
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 099764 IA
Self-reported in NPPES; status is on the state search - Practice location
- 1421 4TH St SW, Mason City, IA 50401
- Phone
- (641) 428-2080
- Enumerated
- Feb 11, 2020
- Entity
- Type 1 · individual
Also registered at 1421 4TH St SW
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Yen Chen Liu, MDDermatology Physician1316269160
- Laura Thorson, PAPhysician Assistant1801459730
- Claire Williams, PAStudent in an Organized Health Care Education/Training Program1629719737
Verify Carrissa Riggs in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Iowa board licenses this profession
Search for license 099764Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
50% more Medicare Part D claims than the average physician assistant in 2024
1,251 Medicare Part D claims for 459 beneficiaries, against an average of 832 among the 95,030 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.
Most prescribed
- Triamcinolone Acetonide154 claims
- Clobetasol Propionate150 claims
- Ketoconazole143 claims
- Doxycycline Hyclate74 claims
- Hydrocortisone67 claims
- Betamethasone Diprop Augmented65 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: $30.54
2 payments, mostly education; the largest payer was Pfizer Inc.. The 61,144 providers of this specialty with any payment received $853.85 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 or facility affiliation
- North Iowa Mercy ClinicsMason City, IA
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
29 physician assistant records list a Mason City practice address
They are 29 of the 866 NPPES records with a Mason City practice address, and 1,416 physician assistant records in Iowa.
All 29 in Mason City → All 1,416 in Iowa → Every provider in Mason City →
Other physician assistant records in Iowa
- Fady AbawiDavenport, IA1861379224
- Steven AbdoCoralville, IA1780375576
- Leah Abebe, PACouncil Bluffs, IA1053941591
- Timothy Ackarman, PAForest City, IA1447368170
- Parker Acree, PA-CIowa City, IA1760251540
- Grace Adam, PA-CIowa City, IA1962150227
- Grace Adsem, PA-CAnkeny, IA1487456653
- Alexis Ahlberg, PA-CCedar Rapids, IA1396330288
- Madisen Ahlstrom, PA-CDavenport, IA1255021770
- Karen Ajram, PAIowa City, IA1598754442
Common questions
What is Carrissa Riggs, PA's NPI number?
Carrissa Riggs, PA's National Provider Identifier (NPI) is 1750913406, issued on Feb 11, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Carrissa Riggs, PA located?
The NPPES record lists a practice address at 1421 4TH St SW, Mason City, IA, 50401. Phone: (641) 428-2080. Providers update this record themselves, so call before visiting.
How can I verify Carrissa Riggs, PA's license?
NPPES lists Iowa license number 099764, as entered by the provider. Search the Iowa board that licenses this profession; the NPPES record confirms identity only.
How much does Carrissa Riggs, PA prescribe under Medicare Part D?
In 2024, Carrissa Riggs, PA had 1,251 Medicare Part D claims for 459 beneficiaries; the average among physician assistant prescribers was 832. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.