Mark T. Isaac, DO
Anesthesiology Physician · Columbus, OH
Mark T. Isaac, DO is an anesthesiology physician with a practice address in Columbus, Ohio, and NPI 1083804199, issued on Jul 26, 2007. Check the license (Ohio 34.007521, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- Mark T. Isaac
- Credential
- DO
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- 34.007521 OH
Self-reported in NPPES; status is on the state search - Practice location
- 111 S Grant Ave FL 3, Columbus, OH 43215
- Phone
- (614) 566-8808
- Enumerated
- Jul 26, 2007
- Record last updated
- Mar 7, 2023
- Medicare enrollment
- Enrolled (PECOS I20070822001211); accepts Medicare assignment
- Medical or professional school
- Ohio University, College Of Osteopathic Medicine, 1998
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 2,068 in Ohio → Look up another NPI →
Also registered at 111 S Grant Ave FL 3
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Yousef Alghothani, MDAnesthesiology Physician1518497718
- David Audet, CRNACertified Registered Nurse Anesthetist1316997828
- Kacy Ballard, CRNACertified Registered Nurse Anesthetist1659347466
- Michelle Boudoulas, CRNACertified Registered Nurse Anesthetist1053635664
- Lilian Bratton, CRNACertified Registered Nurse Anesthetist1558168757
- Marc Brower, MDAnesthesiology Physician1609863919
Verify Mark T. Isaac in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 34.007521Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $39.37
2 payments; by number, the most common kind was food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 17,774 providers of this specialty with any payment received $669.59 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Ohiohealth CorporationDelaware, OH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark T. Isaac among 2,068 anesthesiology physician records in Ohio
Mark T. Isaac, DO is one of 2,068 anesthesiology physician records with a practice address in Ohio. 74% 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 49% of them.
- NPI issued2007 · 49% of these records are older, 42% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated1998 · median 2005 among the 1,382 with a school on file
- Record last updated2023 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
411 anesthesiology physician records list a practice address in Columbus
They are 411 of the 36,491 NPPES records with a practice address in Columbus, and 2,068 anesthesiology physician records in Ohio.
All 2,068 in Ohio → Every provider in Columbus → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Judith Bennett, CRNAColumbus, OH 432151912997701
- Linda Bertolini, CRNAColumbus, OH 432151023007309
- Marsha Bradley Stockton, CRNAColumbus, OH 432151598754863
- Marc Brower, MDColumbus, OH 432151609863919
- Mark Catton, MDColumbus, OH 432151508855875
- Arvind Malik, MDColumbus, OH 432151790774065
- Zachary Nguyen, MDColumbus, OH 432151457340473
- Jon Preston, MDColumbus, OH 432151538159322
Common questions
What is Mark T. Isaac, DO's NPI number?
Mark T. Isaac, DO's National Provider Identifier (NPI) is 1083804199, issued on Jul 26, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Mark T. Isaac, DO located?
The NPPES record lists a practice address at 111 S Grant Ave FL 3, Columbus, OH, 43215. Phone: (614) 566-8808. Providers update this record themselves, so call before visiting.
How can I verify Mark T. Isaac, DO's license?
NPPES lists Ohio license number 34.007521, 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.
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.