William Kai Skallerud, MD, MBA
Family Medicine Physician · Oak Park, IL
William Kai Skallerud, MD, MBA is a family medicine physician with a practice address in Oak Park, Illinois, and NPI 1558105130, issued on Jun 19, 2024. Check the license (Illinois 125-084586, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- William Kai Skallerud
- Credential
- MD, MBA
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 125-084586 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1 Erie CT Ste 6160, Oak Park, IL 60302
- Phone
- (708) 763-1490
- Enumerated
- Jun 19, 2024
- Record last updated
- Aug 15, 2024
- Fax
- (708) 763-2162
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,215 in Illinois → Look up another NPI →
Also registered at 1 Erie CT Ste 6160
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify William Kai Skallerud in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 125-084586Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average family medicine physician in 2024
42 Medicare Part D claims for 17 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
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.
William Kai Skallerud among 6,215 family medicine physician records in Illinois
William Kai Skallerud, MD, MBA is one of 6,215 family medicine physician records with a practice address in Illinois. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2024, is newer than 94% of them.
- NPI issued2024 · 94% of these records are older, 4% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileNo · 60% of these records are
- Record last updated2024 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
86 family medicine physician records list a practice address in Oak Park
They are 86 of the 2,307 NPPES records with a practice address in Oak Park, and 6,215 family medicine physician records in Illinois.
All 6,215 in Illinois → Every provider in Oak Park → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Thomas Bielanski, M.D.Oak Park, IL 603021326089160
- Kenneth Blair, M.D.Oak Park, IL 603021134148182
- Sarah Carreon, MDOak Park, IL 603021538367586
- Connie Chappel, MDOak Park, IL 603021114062585
- Maureen Connolly, M.D.Oak Park, IL 603021982736450
- Katrina Cordero, MDOak Park, IL 603021386747822
- Carolyn Fitzpatrick, M.D.Oak Park, IL 603021205872462
- Humaira Khan, MDOak Park, IL 603021811174105
Common questions
What is William Kai Skallerud, MD, MBA's NPI number?
William Kai Skallerud, MD, MBA's National Provider Identifier (NPI) is 1558105130, issued on Jun 19, 2024. An NPI identifies a provider in billing; it is not a license.
Where is William Kai Skallerud, MD, MBA located?
The NPPES record lists a practice address at 1 Erie CT Ste 6160, Oak Park, IL, 60302. Phone: (708) 763-1490. Providers update this record themselves, so call before visiting.
How can I verify William Kai Skallerud, MD, MBA's license?
NPPES lists Illinois license number 125-084586, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does William Kai Skallerud, MD, MBA prescribe under Medicare Part D?
In 2024, William Kai Skallerud, MD, MBA had 42 Medicare Part D claims for 17 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.