Karen Renee Grassie, M.D.
Surgery Physician · Concord Twp, OH
Karen Renee Grassie, M.D. is a surgery physician with a practice address in Concord Twp, Ohio, and NPI 1417056516, issued on Sep 22, 2006. Check the license (Ohio 35-075055-G, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- Karen Renee Grassie
- Credential
- M.D.
- Primary taxonomy
- Surgery Physician 208600000X
- License number
- 35-075055-G OH
Self-reported in NPPES; status is on the state search - Practice location
- 7580 Auburn RD, Concord Twp, OH 44077
- Phone
- (440) 352-0646
- Enumerated
- Sep 22, 2006
- Record last updated
- Aug 2, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (440) 352-0648
- Medicaid ID
- 2327771 OH
- Medicare enrollment
- Enrolled (PECOS I20041027000000); accepts Medicare assignment
- Medical or professional school
- Medical College Of Ohio, 1997
- Entity
- Type 1 · individual
Also registered at 7580 Auburn RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Helene Cantin, AUD.Audiologist-Hearing Aid Fitter1699023390
- Karen Clifford, R.D., L.D.Registered Dietitian1609239193
- Lori Falzone, M.A.Audiologist1245431527
- Catherine Helkey, AU.D.Audiologist1720243942
- Ashley Hixon, PHARM.D.Pharmacist1306455480
- Robert Katz, MDOtolaryngology Physician1528025327
Verify Karen Renee Grassie in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 35-075055-GCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
31% fewer Medicare Part D claims than the average surgery physician in 2024
101 Medicare Part D claims for 74 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. 65 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen36 claims
- Oxycodone-Acetaminophen23 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
- University Primary Care Practices IncConcord Township, OH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Surgery Physician providers in Ohio
There are 1,249 surgery physician records in Ohio.
Other surgery physician records in Ohio
- Hassan-James AbbasToledo, OH1891317947
- Mujjahid Abbas, MDCleveland, OH1861632994
- Rashid Abdu, MDYoungstown, OH1528166501
- Mohammed Abdulkarim, MDKenton, OH1811927056
- Rami Abraham, M.D.Steubenville, OH1396066569
- Alicia AdamsCleveland, OH1578925616
- Stenneth Adams, M.D.Bryan, OH1982642146
- Heather Adkins, MDMiddletown, OH1952628778
- Ellyn Adley, CSAToledo, OH1700399219
- Sakib AdnanCleveland, OH1235799537
Common questions
What is Karen Renee Grassie, M.D.'s NPI number?
Karen Renee Grassie, M.D.'s National Provider Identifier (NPI) is 1417056516, issued on Sep 22, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Karen Renee Grassie, M.D. located?
The NPPES record lists a practice address at 7580 Auburn RD, Concord Twp, OH, 44077. Phone: (440) 352-0646. Providers update this record themselves, so call before visiting.
How can I verify Karen Renee Grassie, M.D.'s license?
NPPES lists Ohio license number 35-075055-G, as entered by the provider. Search the State Medical Board of Ohio at https://elicense.ohio.gov/oh_verifylicense. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Karen Renee Grassie, M.D. prescribe under Medicare Part D?
In 2024, Karen Renee Grassie, M.D. had 101 Medicare Part D claims for 74 beneficiaries; the average among surgery physician prescribers was 147. 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.