Ashleigh A. Olson, M.D.
Allergy & Immunology Physician · Madison, WI
Ashleigh A. Olson, M.D. is an allergy & immunology physician with a practice address in Madison, Wisconsin, and NPI 1699064238, issued on Apr 5, 2011. Check the license (Wisconsin 62292-20, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Ashleigh A. Olson
- Credential
- M.D.
- Primary taxonomy
- Allergy & Immunology Physician 207K00000X
- License number
- 62292-20 WI
Self-reported in NPPES; status is on the state search - Practice location
- 1821 S Stoughton RD, Madison, WI 53716
- Phone
- (608) 260-6000
- Enumerated
- Apr 5, 2011
- Record last updated
- Oct 27, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (608) 260-6429
- Medicaid ID
- 1699064238 WI
- Medicare enrollment
- Enrolled (PECOS I20160923000058); accepts Medicare assignment
- Medical or professional school
- University Of Wisconsin School Of Medicine, 2011
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest allergy & immunology physician records → All 63 in Wisconsin → Look up another NPI →
Also registered at 1821 S Stoughton RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Robert Alt, MDInternal Medicine Physician1578500872
- Darcey Amundson, PA-CPhysician Assistant1588691398
- Richard Armstrong, MDInternal Medicine Physician1689774523
- Wendy Arrington, O.D.Optometrist1750394334
- Bhawani Ballamudi, M.D.Psychiatry Physician1831148691
- Zachary Barber, PTPhysical Therapist1609054212
Verify Ashleigh A. Olson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 62292-20Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
12% more Medicare Part D claims than the average allergy & immunology physician in 2024
832 Medicare Part D claims for 132 beneficiaries, against an average of 741 among the 2,899 providers of this specialty who prescribed in Part D. Brand-name drugs were 48% of claims.
Most prescribed
- Montelukast Sodium125 claims
- Albuterol Sulfate Hfa79 claims
- Fluticasone-Salmeterol64 claims
- Fluticasone Propionate51 claims
- Arnuity Ellipta47 claims
- Azelastine Hcl43 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 one group practice
- Dean Health Systems IncSun Prairie, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ashleigh A. Olson among 63 allergy & immunology physician records in Wisconsin
Ashleigh A. Olson, M.D. is one of 63 allergy & immunology physician records with a practice address in Wisconsin. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 75% of them.
- NPI issued2011 · 75% of these records are older, 21% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 52% of these records are
- Graduated2011 · median 2003 among the 33 with a school on file
- Record last updated2020 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207K00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Allergy & Immunology Physician providers in Wisconsin
There are 63 allergy & immunology physician records in Wisconsin.
All 63 in Wisconsin → Every provider in Madison → Allergy & Immunology Physician nationwide →
The 8 allergy & immunology physician records with the nearest ZIP codes
- Jeremy Bufford, M.D.Monona, WI 537161487603247
- Yingyu Gao, MDMadison, WI 537161003435058
- John Kelly, MDMadison, WI 537161104874361
- Caitlan Murphy, M.D.Madison, WI 537161578052601
- Jon Kooistra, MDMadison, WI 537171649229345
- Allan Luskin, MDMadison, WI 537171902855174
- Julia Thorsen, M.D.Madison, WI 537171023402153
- Christine Virnig, M.D.Madison, WI 537171619913829
Common questions
What is Ashleigh A. Olson, M.D.'s NPI number?
Ashleigh A. Olson, M.D.'s National Provider Identifier (NPI) is 1699064238, issued on Apr 5, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Ashleigh A. Olson, M.D. located?
The NPPES record lists a practice address at 1821 S Stoughton RD, Madison, WI, 53716. Phone: (608) 260-6000. Providers update this record themselves, so call before visiting.
How can I verify Ashleigh A. Olson, M.D.'s license?
NPPES lists Wisconsin license number 62292-20, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Ashleigh A. Olson, M.D. prescribe under Medicare Part D?
In 2024, Ashleigh A. Olson, M.D. had 832 Medicare Part D claims for 132 beneficiaries; the average among allergy & immunology physician prescribers was 741. 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.