Karen Lynn Cook-Khazan, MD
Internal Medicine Physician · Toledo, OH
Karen Lynn Cook-Khazan, MD is an internal medicine physician with a practice address in Toledo, Ohio, and NPI 1881780914, issued on Oct 5, 2006. Check the license (Ohio 35058507, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- Karen Lynn Cook-Khazan
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 35058507 OH
Self-reported in NPPES; status is on the state search - Practice location
- 3333 Glendale Ave, Toledo, OH 43614
- Phone
- (419) 259-2000
- Enumerated
- Oct 5, 2006
- Record last updated
- Jun 5, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (419) 259-2008
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 5,277 in Ohio → Look up another NPI →
Also registered at 3333 Glendale Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Karen Lynn Cook-Khazan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 35058507Check 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 internal medicine physician in 2024
40 Medicare Part D claims, against an average of 3,176 among the 108,855 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.
Karen Lynn Cook-Khazan among 5,277 internal medicine physician records in Ohio
Karen Lynn Cook-Khazan, MD is one of 5,277 internal medicine physician records with a practice address in Ohio. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 13% of them.
- NPI issued2006 · 13% of these records are older, 55% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 65% of these records are
- Record last updated2013 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
158 internal medicine physician records list a practice address in Toledo
They are 158 of the 13,583 NPPES records with a practice address in Toledo, and 5,277 internal medicine physician records in Ohio.
All 5,277 in Ohio → Every provider in Toledo → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Douglas Federman, M.D.Toledo, OH 436141427043629
- Bryan Hinch, MDToledo, OH 436141326027152
- Saba IqbalToledo, OH 436141932295904
- Abdullah Kadan, MDToledo, OH 436141982833133
- James Kleshinski, M.D.Toledo, OH 436141316932981
- Christopher Lynn, M.D.Toledo, OH 436141386630754
- Anand Mutgi, M.D.Toledo, OH 436141770578353
- Paul Oatis, MDToledo, OH 436141144319518
Common questions
What is Karen Lynn Cook-Khazan, MD's NPI number?
Karen Lynn Cook-Khazan, MD's National Provider Identifier (NPI) is 1881780914, issued on Oct 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Karen Lynn Cook-Khazan, MD located?
The NPPES record lists a practice address at 3333 Glendale Ave, Toledo, OH, 43614. Phone: (419) 259-2000. Providers update this record themselves, so call before visiting.
How can I verify Karen Lynn Cook-Khazan, MD's license?
NPPES lists Ohio license number 35058507, 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 Lynn Cook-Khazan, MD prescribe under Medicare Part D?
In 2024, Karen Lynn Cook-Khazan, MD had 40 Medicare Part D claims; the average among internal medicine physician prescribers was 3,176. 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.