Charles Bark, M.D.
Internal Medicine Physician · Cleveland, OH
Charles Bark, M.D. is an internal medicine physician with a practice address in Cleveland, Ohio, and NPI 1932301876, issued on Jun 4, 2007. Check the license (Ohio 89585, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- Charles Bark
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 89585 OH
Self-reported in NPPES; status is on the state search - Practice location
- 11100 Euclid Ave, Cleveland, OH 44106
- Phone
- (216) 844-1709
- Enumerated
- Jun 4, 2007
- Record last updated
- Jun 20, 2025
- Fax
- (216) 844-1632
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 5,277 in Ohio → Look up another NPI →
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Verify Charles Bark in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 89585Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average internal medicine physician in 2024
160 Medicare Part D claims for 31 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 23% of claims.
Most prescribed
- Amoxicillin-Clavulanate Potass16 claims
- Isoniazid13 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.
Charles Bark among 5,277 internal medicine physician records in Ohio
Charles Bark, M.D. 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 2007, is newer than 45% of them.
- NPI issued2007 · 45% of these records are older, 48% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 65% of these records are
- Record last updated2025 · 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).
897 internal medicine physician records list a practice address in Cleveland
They are 897 of the 30,748 NPPES records with a practice address in Cleveland, and 5,277 internal medicine physician records in Ohio.
All 5,277 in Ohio → Every provider in Cleveland → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Rajesh Chandra, MDCleveland, OH 441061346269289
- Robert Cirino, MDCleveland, OH 441061194766204
- Ismail Dreshaj, MDCleveland, OH 441061295751568
- Carla Harwell, MDCleveland, OH 441061083630271
- Karen Horowitz, MDCleveland, OH 441061275552911
- Kristin Kaelber, M.D.Cleveland, OH 441061871551846
- Catherine Keating, MDCleveland, OH 441061689690331
- Debra Leizman, MDCleveland, OH 441061770509341
Common questions
What is Charles Bark, M.D.'s NPI number?
Charles Bark, M.D.'s National Provider Identifier (NPI) is 1932301876, issued on Jun 4, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Charles Bark, M.D. located?
The NPPES record lists a practice address at 11100 Euclid Ave, Cleveland, OH, 44106. Phone: (216) 844-1709. Providers update this record themselves, so call before visiting.
How can I verify Charles Bark, M.D.'s license?
NPPES lists Ohio license number 89585, 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 Charles Bark, M.D. prescribe under Medicare Part D?
In 2024, Charles Bark, M.D. had 160 Medicare Part D claims for 31 beneficiaries; 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.