Cassandra Rohan
Physician Assistant · Oshkosh, WI
Cassandra Rohan is a physician assistant with a practice address in Oshkosh, Wisconsin, and NPI 1861148991, issued on Feb 28, 2022. Check the license (Wisconsin 7030-23, as entered in NPPES) with the Wisconsin board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Cassandra Rohan
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 7030-23 WI
Self-reported in NPPES; status is on the state search - Practice location
- 2700 W 9TH Ave Ste 101A, Oshkosh, WI 54904
- Phone
- (920) 223-7075
- Enumerated
- Feb 28, 2022
- Record last updated
- Apr 21, 2026
- Medicare enrollment
- Enrolled (PECOS I20220906003056); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 3,475 in Wisconsin → Look up another NPI →
Also registered at 2700 W 9TH Ave Ste 101A
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Roberta Blaha, OTROccupational Therapist1205958253
Verify Cassandra Rohan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
Search for license 7030-23Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
73% fewer Medicare Part D claims than the average physician assistant in 2024
224 Medicare Part D claims for 170 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 31 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen24 claims
- Sulfamethoxazole-Trimethoprim22 claims
- Prednisone19 claims
- Amoxicillin-Clavulanate Potass18 claims
- Cephalexin16 claims
- Nitrofurantoin Mono-Macro16 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.
Bills Medicare through 2 group practices
- Ascension Medical Group-Fox Valley Wisconsin IncNeenah, WI
- Ascension Medical Group-Southeast Wisconsin IncWauwatosa, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Cassandra Rohan among 3,475 physician assistant records in Wisconsin
Cassandra Rohan is one of 3,475 physician assistant records with a practice address in Wisconsin. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 80% of them.
- NPI issued2022 · 80% of these records are older, 14% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2022 · median 2016 among the 2,491 with a school on file
- Record last updated2026 · 38% 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 Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
43 physician assistant records list a practice address in Oshkosh
They are 43 of the 1,527 NPPES records with a practice address in Oshkosh, and 3,475 physician assistant records in Wisconsin.
All 3,475 in Wisconsin → Every provider in Oshkosh → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Matthew Bay, P.A.Oshkosh, WI 549041033359401
- Mark Evans, PA-COshkosh, WI 549041649205105
- Daniel Hafner, PAOshkosh, WI 549041578563946
- Marc Jennings, PA-COshkosh, WI 549041144212994
- Stephen Kennebeck, PA-COshkosh, WI 549041538169214
- Dianna Malkowski, PAOshkosh, WI 549041811194699
- Marina Mishin, PA-COshkosh, WI 549041205845351
- Sherri Olson, PAOshkosh, WI 549041609858471
Common questions
What is Cassandra Rohan's NPI number?
Cassandra Rohan's National Provider Identifier (NPI) is 1861148991, issued on Feb 28, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Cassandra Rohan located?
The NPPES record lists a practice address at 2700 W 9TH Ave Ste 101A, Oshkosh, WI, 54904. Phone: (920) 223-7075. Providers update this record themselves, so call before visiting.
How can I verify Cassandra Rohan's license?
NPPES lists Wisconsin license number 7030-23, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.
How much does Cassandra Rohan prescribe under Medicare Part D?
In 2024, Cassandra Rohan had 224 Medicare Part D claims for 170 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.