Jason Williamson, DC
Chiropractor · Portland, MI
Jason Williamson, DC is a chiropractor with a practice address in Portland, Michigan, and NPI 1558512087, issued on Oct 2, 2008. Check the license (Michigan 2301009498, as entered in NPPES) with the Michigan board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Jason Williamson
- Credential
- DC
- Primary taxonomy
- Chiropractor 111N00000X
- License number
- 2301009498 MI
Self-reported in NPPES; status is on the state search - Practice location
- 912 E Grand River Ave, Portland, MI 48875
- Phone
- (517) 647-7585
- Enumerated
- Oct 2, 2008
- Record last updated
- Jul 31, 2013 (not updated in 13 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20081213000214); accepts Medicare assignment
- Medical or professional school
- National University Of Arts And Sciences, Medical Department, 2008
- Entity
- Type 1 · individual
8 nearest chiropractor records → All 3,058 in Michigan → Look up another NPI →
Also registered at 912 E Grand River Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Russell Willemin, D.C.Chiropractor1033156369
Verify Jason Williamson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Michigan board licenses this profession
Search for license 2301009498Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Jason Williamson among 3,058 chiropractor records in Michigan
Jason Williamson, DC is one of 3,058 chiropractor records with a practice address in Michigan. 25% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2008, is newer than 55% of them.
- NPI issued2008 · 55% of these records are older, 41% newer
- In a Medicare fileNo · 25% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2008 · median 2005 among the 1,743 with a school on file
- Record last updated2013 · 74% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 111N00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
4 chiropractor records list a practice address in Portland
They are 4 of the 67 NPPES records with a practice address in Portland, and 3,058 chiropractor records in Michigan. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 3,058 in Michigan → Every provider in Portland → Chiropractor nationwide →
The 8 chiropractor records with the nearest ZIP codes
- Jennifer Culp, DCPortland, MI 488751962456350
- Ryan Koolen, D.C.Portland, MI 488751588627657
- Russell Willemin, D.C.Portland, MI 488751033156369
- Tammy Sullivan, D.C.Perry, MI 488721831381979
- Maureen Barry, D.C.Saint Johns, MI 488791174829477
- Tyler Dickenson, D.C.Saint Johns, MI 488791518322825
- Holly GrahamSaint Johns, MI 488791346749637
- Rodger Massa, DCSt Johns, MI 488791992830038
Common questions
What is Jason Williamson, DC's NPI number?
Jason Williamson, DC's National Provider Identifier (NPI) is 1558512087, issued on Oct 2, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Jason Williamson, DC located?
The NPPES record lists a practice address at 912 E Grand River Ave, Portland, MI, 48875. Phone: (517) 647-7585. Providers update this record themselves, so call before visiting.
How can I verify Jason Williamson, DC's license?
NPPES lists Michigan license number 2301009498, as entered by the provider. Search the Michigan board that licenses this profession; the NPPES record confirms identity 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. 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.