Garrett Klaassen
Physician Assistant · Oklahoma City, OK
Garrett Klaassen is a physician assistant with a practice address in Oklahoma City, Oklahoma, and NPI 1710652540, issued on Aug 13, 2021. Check the license with the Oklahoma board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Garrett Klaassen
- Primary taxonomy
- Physician Assistant 363A00000X
- Practice location
- 800 NE 10TH St, Oklahoma City, OK 73104
- Phone
- (405) 271-4022
- Enumerated
- Aug 13, 2021
- Record last updated
- Oct 7, 2024
- Fax
- (405) 271-3020
- Medicare enrollment
- Enrolled (PECOS I20240426001263); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 800 NE 10TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Garrett Klaassen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Oklahoma 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
89% fewer Medicare Part D claims than the average physician assistant in 2024
88 Medicare Part D claims for 22 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. 22 claims were for opioids.
Most prescribed
- Buprenorphine20 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: $238.12
5 payments; by number, the most common kind was food and beverage; the largest payer was Novocure Inc. The 64,719 providers of this specialty with any payment received $841.65 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
- OU Health Partners IncOklahoma City, OK
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
673 physician assistant records list a practice address in Oklahoma City
They are 673 of the 22,359 NPPES records with a practice address in Oklahoma City, and 1,870 physician assistant records in Oklahoma.
All 673 in Oklahoma City → All 1,870 in Oklahoma → Every provider in Oklahoma City →
Other physician assistant records in Oklahoma
- David Abbott, PAOklahoma City, OK1881621241
- Teresa AberleOklahoma City, OK1588963953
- Sabrina AbrahamEdmond, OK1548980048
- Raoul Acha, PAShawnee, OK1902513682
- Nikki AcuffTulsa, OK1295390979
- Jennifer Acuna, PA-CTulsa, OK1306981071
- Britney Adair, PAStillwater, OK1578347654
- Parnell Adams, PA-CPonca City, OK1801810783
- Rebekah Adams, PAOklahoma City, OK1851005508
- Courtney Adler, PA-COklahoma City, OK1083536411
Common questions
What is Garrett Klaassen's NPI number?
Garrett Klaassen's National Provider Identifier (NPI) is 1710652540, issued on Aug 13, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Garrett Klaassen located?
The NPPES record lists a practice address at 800 NE 10TH St, Oklahoma City, OK, 73104. Phone: (405) 271-4022. Providers update this record themselves, so call before visiting.
How can I verify Garrett Klaassen's license?
Search the Oklahoma board that licenses this profession; the NPPES record confirms identity only.
How much does Garrett Klaassen prescribe under Medicare Part D?
In 2024, Garrett Klaassen had 88 Medicare Part D claims for 22 beneficiaries; the average among physician assistant prescribers was 830. 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.