Jeffrey T. Baker, MD
Internal Medicine Physician · Mason, OH
Jeffrey T. Baker, MD is an internal medicine physician with a practice address in Mason, Ohio, and NPI 1932163771, issued on Apr 17, 2006. Check the license (Ohio 35047789B, as entered in NPPES) on the State Medical Board of Ohio; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Jeffrey T. Baker
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 35047789B OH
Self-reported in NPPES; status is on the state search - Practice location
- 9313 Mason Montgomery Road, Mason, OH 45040
- Phone
- (513) 584-6999
- Enumerated
- Apr 17, 2006
- Record last updated
- Jan 9, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (513) 584-6998
- Medicaid ID
- 0555519 OH
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 5,277 in Ohio → Look up another NPI →
Verify Jeffrey T. Baker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 35047789BCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Jeffrey T. Baker among 5,277 internal medicine physician records in Ohio
Jeffrey T. Baker, 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 not. Its NPI, issued in 2006, is newer than 13% of them.
- NPI issued2006 · 13% of these records are older, 55% newer
- In a Medicare fileNo · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 65% of these records are
- Record last updated2018 · 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).
24 internal medicine physician records list a practice address in Mason
They are 24 of the 1,495 NPPES records with a practice address in Mason, and 5,277 internal medicine physician records in Ohio. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 5,277 in Ohio → Every provider in Mason → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Waheed Adewumi, M.D.Mason, OH 450401033173273
- Paul Blanchard, MDMason, OH 450401659340131
- Marsha Bramson, MDMason, OH 450401588627905
- David Dearworth, M.D. (AND R.PH)Mason, OH 450401669556890
- Jay Hayner, MDMason, OH 450401396790507
- Janet Higgins, M.D.Mason, OH 450401871517706
- Amy Hovermale, MDMason, OH 450401427011816
- Dyatra Mitchell, MDMason, OH 450401285694380
Common questions
What is Jeffrey T. Baker, MD's NPI number?
Jeffrey T. Baker, MD's National Provider Identifier (NPI) is 1932163771, issued on Apr 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Jeffrey T. Baker, MD located?
The NPPES record lists a practice address at 9313 Mason Montgomery Road, Mason, OH, 45040. Phone: (513) 584-6999. Providers update this record themselves, so call before visiting.
How can I verify Jeffrey T. Baker, MD's license?
NPPES lists Ohio license number 35047789B, 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. 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.