Karen Guy Grajewski, MD
Diagnostic Radiology Physician · Ann Arbor, MI
Karen Guy Grajewski, MD is a diagnostic radiology physician with a practice address in Ann Arbor, Michigan, and NPI 1518351477, issued on Mar 27, 2015. Check the license (Michigan 4301119185, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Karen Guy Grajewski
- Credential
- MD
- Primary taxonomy
- Diagnostic Radiology Physician 2085R0202X
- License number
- 4301119185 MI
Self-reported in NPPES; status is on the state search - Practice location
- 1500 E Medical Center Dr, Ann Arbor, MI 48109
- Phone
- (734) 936-4000
- Enumerated
- Mar 27, 2015
- Record last updated
- Jul 1, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20200728003219); accepts Medicare assignment
- Medical or professional school
- University Of Michigan Medical School, 2015
- Entity
- Type 1 · individual
8 nearest diagnostic radiology physician records → All 1,584 in Michigan → Look up another NPI →
Also registered at 1500 E Medical Center Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Karen Guy Grajewski in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301119185Check 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 2 group practices
- Huron Valley Radiology PCYpsilanti, MI
- X-Ray Consultants IncYpsilanti, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karen Guy Grajewski among 1,584 diagnostic radiology physician records in Michigan
Karen Guy Grajewski, MD is one of 1,584 diagnostic radiology physician records with a practice address in Michigan. 70% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 80% of them.
- NPI issued2015 · 80% of these records are older, 19% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2015 · median 2003 among the 1,007 with a school on file
- Record last updated2020 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
257 diagnostic radiology physician records list a practice address in Ann Arbor
They are 257 of the 15,616 NPPES records with a practice address in Ann Arbor, and 1,584 diagnostic radiology physician records in Michigan.
All 1,584 in Michigan → Every provider in Ann Arbor → Diagnostic Radiology Physician nationwide →
The 8 diagnostic radiology physician records with the nearest ZIP codes
- David Bloom, MDAnn Arbor, MI 481091306815774
- Kenneth Buckwalter, MDAnn Arbor, MI 481091255379996
- Zachary Delproposto, M.D.Ann Arbor, MI 481091114974672
- David Fessell, MDAnn Arbor, MI 481091285693184
- Kimberly Garver, M.D.Ann Arbor, MI 481091841242583
- Gwynne Holz, M.D.Ann Arbor, MI 481091912960857
- Deborah Jeffries, M.D.Ann Arbor, MI 481091326099292
- Aparna Joshi, MDAnn Arbor, MI 481091154355113
Common questions
What is Karen Guy Grajewski, MD's NPI number?
Karen Guy Grajewski, MD's National Provider Identifier (NPI) is 1518351477, issued on Mar 27, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Karen Guy Grajewski, MD located?
The NPPES record lists a practice address at 1500 E Medical Center Dr, Ann Arbor, MI, 48109. Phone: (734) 936-4000. Providers update this record themselves, so call before visiting.
How can I verify Karen Guy Grajewski, MD's license?
NPPES lists Michigan license number 4301119185, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
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.