Anna Iwersen, PA-C
Physician Assistant · Kalispell, MT
Anna Iwersen, PA-C is a physician assistant with a practice address in Kalispell, Montana, and NPI 1235489139, issued on Sep 18, 2012. Check the license (Montana MED-PAC-LIC-91714, as entered in NPPES) with the Montana board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Anna Iwersen
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License numbers
- MED-PAC-LIC-91714 MT
015681 NY
Self-reported in NPPES; status is on the state search - Practice location
- 350 Heritage Way Ste 1200, Kalispell, MT 59901
- Phone
- (406) 752-6784
- Enumerated
- Sep 18, 2012
- Entity
- Type 1 · individual
Also registered at 350 Heritage Way Ste 1200
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jessika Abbrescia, PACOrthopaedic Surgery Physician1740959915
- Julie Adams, M.D.Orthopaedic Surgery Physician1033195284
- Frances Davis, OTD R/LOccupational Therapist1548072309
- Nathaniel Fogel, MD, MSOrthopaedic Hand Surgery Physician1417480542
- Trent Gahl, OTOccupational Therapist1548797707
- Michael Heilman, FNPNurse Practitioner1316993546
Verify Anna Iwersen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Montana board licenses this profession
Search for license MED-PAC-LIC-91714Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
49% more Medicare Part D claims than the average physician assistant in 2024
1,240 Medicare Part D claims for 355 beneficiaries, against an average of 832 among the 95,030 providers of this specialty who prescribed in Part D. Brand-name drugs were 3% of claims. 383 claims were for opioids.
Most prescribed
- Oxycodone Hcl294 claims
- Pantoprazole Sodium223 claims
- Meloxicam189 claims
- Dexamethasone132 claims
- Ondansetron Odt122 claims
- Doxycycline Hyclate56 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: $33.35
1 payment, mostly food and beverage; the largest payer was Abbvie 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
- Kalispell Regional Medical Center IncKalispell, MT
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.
57 physician assistant records list a Kalispell practice address
They are 57 of the 1,650 NPPES records with a Kalispell practice address, and 739 physician assistant records in Montana.
All 57 in Kalispell → All 739 in Montana → Every provider in Kalispell →
Other physician assistant records in Montana
- Patrick Alduenda, PA-CHelena, MT1710967724
- Jesse Alfiero, PA-CRonan, MT1396491155
- Robert Alfiero, PA-CRonan, MT1417029059
- Janel Allison-Shamblin, PA-CBozeman, MT1437626751
- Luke Altenhofen, PA-CLame Deer, MT1407221708
- Alexandra AlthofBillings, MT1487338034
- Jessica Amsden, PACBillings, MT1053351411
- Brenda Anderson, PA-CKalispell, MT1912145467
- Jessica Anderson, PA-CBozeman, MT1417115791
- Molly Anderson, PA-CMissoula, MT1750797676
Common questions
What is Anna Iwersen, PA-C's NPI number?
Anna Iwersen, PA-C's National Provider Identifier (NPI) is 1235489139, issued on Sep 18, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Anna Iwersen, PA-C located?
The NPPES record lists a practice address at 350 Heritage Way Ste 1200, Kalispell, MT, 59901. Phone: (406) 752-6784. Providers update this record themselves, so call before visiting.
How can I verify Anna Iwersen, PA-C's license?
NPPES lists Montana license number MED-PAC-LIC-91714, as entered by the provider. Search the Montana board that licenses this profession; the NPPES record confirms identity only.
How much does Anna Iwersen, PA-C prescribe under Medicare Part D?
In 2024, Anna Iwersen, PA-C had 1,240 Medicare Part D claims for 355 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.