Katherine Grierson
Physician Assistant · Royal Oak, MI
Katherine Grierson is a physician assistant with a practice address in Royal Oak, Michigan, and NPI 1295702777, issued on Mar 3, 2006. Check the license (Michigan 5601003655, as entered in NPPES) with the Michigan board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Katherine Grierson
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 5601003655 MI
Self-reported in NPPES; status is on the state search - Practice location
- 3601 W 13 Mile RD, Royal Oak, MI 48073
- Phone
- (248) 898-5000
- Enumerated
- Mar 3, 2006
- Record last updated
- Jul 13, 2026
- Medicare enrollment
- Enrolled (PECOS I20040122000368); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 3601 W 13 Mile RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mary Ann Abbass, C.N.M.Advanced Practice Midwife1003245622
- Mohammad Abdulla, DODiagnostic Radiology Physician1093338188
- Rasheed Abdullah, MDDiagnostic Radiology Physician1023851847
- Darian Aboubakare, MDSleep Medicine (Internal Medicine) Physician1558941674
- Farah Aboufakhr, MDAnesthesiology Physician1093409260
- Mohamad Aboumourad, DOInternal Medicine Physician1669225637
Verify Katherine Grierson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Michigan board licenses this profession
Search for license 5601003655Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Memorial Medical Center OF West MichiganLudington, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
210 physician assistant records list a practice address in Royal Oak
They are 210 of the 3,887 NPPES records with a practice address in Royal Oak, and 6,989 physician assistant records in Michigan.
All 210 in Royal Oak → All 6,989 in Michigan → Every provider in Royal Oak →
Other physician assistant records in Michigan
- Hauraa Aalabdulrasul, PADetroit, MI1467181982
- Kilee Aamodt, PA-CMuskegon, MI1578964300
- Rasha AbbasDetroit, MI1750239505
- Layan Abbasi, PA-CYpsilanti, MI1043045552
- Veronica Abbo, PA-CRoseville, MI1659889806
- Stephanie Abbott, PA-CGrand Rapids, MI1386072825
- Samar Abboud, PA-CYpsilanti, MI1871942144
- Salma Abd Elhamid, PA-CTroy, MI1457245730
- Malak Abdallah, PA-CDearborn, MI1245922194
- Marriam Abdallah, PA-CDearborn, MI1720962574
Common questions
What is Katherine Grierson's NPI number?
Katherine Grierson's National Provider Identifier (NPI) is 1295702777, issued on Mar 3, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Katherine Grierson located?
The NPPES record lists a practice address at 3601 W 13 Mile RD, Royal Oak, MI, 48073. Phone: (248) 898-5000. Providers update this record themselves, so call before visiting.
How can I verify Katherine Grierson's license?
NPPES lists Michigan license number 5601003655, 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. 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.