Stephen Isernhagen
Physician Assistant · Norman, OK
Stephen Isernhagen is a physician assistant with a practice address in Norman, Oklahoma, and NPI 1720444631, issued on Jan 7, 2016. Check the license (Oklahoma 2613, as entered in NPPES) with the Oklahoma board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Stephen Isernhagen
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 2613 OK
Self-reported in NPPES; status is on the state search - Practice location
- 3700 36TH Ave NW, Norman, OK 73072
- Phone
- (405) 230-9600
- Enumerated
- Jan 7, 2016
- Record last updated
- Aug 9, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (405) 230-9601
- Medicare enrollment
- Enrolled (PECOS I20160215001190); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 1,870 in Oklahoma → Look up another NPI →
Also registered at 3700 36TH Ave NW
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Myrth Mehl, ARNPNurse Practitioner1609101583
- Benjamin Panter, MDOrthopaedic Surgery Physician1154527992
Verify Stephen Isernhagen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Oklahoma board licenses this profession
Search for license 2613Check 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 physician assistant in 2024
82 Medicare Part D claims for 53 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.
Most prescribed
- Meloxicam27 claims
- Methylprednisolone23 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 practice group's MIPS final score for 2023 (Medicare payment program): 92.4 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $139.64
1 payment: food and beverage; the largest payer was Stryker Corporation. 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
- Mcbride Clinic Orthopedic Hospital, LLCNorman, OK
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Stephen Isernhagen among 1,870 physician assistant records in Oklahoma
Stephen Isernhagen is one of 1,870 physician assistant records with a practice address in Oklahoma. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 50% of them.
- NPI issued2016 · 50% of these records are older, 46% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated2015 · median 2017 among the 1,246 with a school on file
- Record last updated2019 · 45% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
73 physician assistant records list a practice address in Norman
They are 73 of the 4,245 NPPES records with a practice address in Norman, and 1,870 physician assistant records in Oklahoma.
All 1,870 in Oklahoma → Every provider in Norman → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Ashley Agee, PA-CNorman, OK 730721619390523
- Stephanie Badaroux, PA-CNorman, OK 730721063816213
- Kerri Baker, PA-CNorman, OK 730721982025359
- Winter Bathe, P.A.Norman, OK 730721720096043
- Elizabeth Bivens, PA-CNorman, OK 730721447258405
- Michelle Bourne, PA-CNorman, OK 730721124027263
- Kelly Duren, P.A.Norman, OK 730721922036409
- Morgan Gossen, PA-CNorman, OK 730721154710887
Common questions
What is Stephen Isernhagen's NPI number?
Stephen Isernhagen's National Provider Identifier (NPI) is 1720444631, issued on Jan 7, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Stephen Isernhagen located?
The NPPES record lists a practice address at 3700 36TH Ave NW, Norman, OK, 73072. Phone: (405) 230-9600. Providers update this record themselves, so call before visiting.
How can I verify Stephen Isernhagen's license?
NPPES lists Oklahoma license number 2613, as entered by the provider. Search the Oklahoma board that licenses this profession; the NPPES record confirms identity only.
How much does Stephen Isernhagen prescribe under Medicare Part D?
In 2024, Stephen Isernhagen had 82 Medicare Part D claims for 53 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is Stephen Isernhagen's MIPS final score?
The 2023 MIPS final score is 92.4 of 100, reported for the practice group. 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.