John M. Hamill, MD
Psychiatry Physician · Athens, OH
John M. Hamill, MD is a psychiatry physician with a practice address in Athens, Ohio, and NPI 1861483703, issued on Oct 31, 2005. Check the license (Ohio 35056975, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- John M. Hamill
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 35056975 OH
Self-reported in NPPES; status is on the state search - Practice location
- 100 Hospital Dr, Athens, OH 45701
- Phone
- (740) 594-5000
- Enumerated
- Oct 31, 2005
- Record last updated
- Dec 28, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (740) 592-5402
- Medicaid ID
- 2032268 OH
- Medicare enrollment
- Enrolled (PECOS I20050516000885); accepts Medicare assignment
- Medical or professional school
- University Of Kansas School Of Med (Kc/Wich/Sal), 1987
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 1,587 in Ohio → Look up another NPI →
Also registered at 100 Hospital Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Donna Beaumont, CLINICAL NURSE SPEC.Adult Psychiatric/Mental Health Clinical Nurse Specialist1063431229
- Mychaela Chapman, LSWSocial Worker1740851179
- Jonathan Daniels, PMHNP, MSN, MSED, RNPsychiatric/Mental Health Nurse Practitioner1508348335
- Anthony Derrico, D.O.Psychiatry Physician1609886993
- James Diskin, DOPsychiatry Physician1134680085
- Vickie Erdy, NP-CFamily Nurse Practitioner1841682861
Verify John M. Hamill in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 35056975Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- State OF Ohio Office OF Budget And Management State AccountingAthens, OH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John M. Hamill among 1,587 psychiatry physician records in Ohio
John M. Hamill, MD is one of 1,587 psychiatry physician records with a practice address in Ohio. 70% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 93% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileYes · 49% of these records are
- Graduated1987 · median 2003 among the 775 with a school on file
- Record last updated2011 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
18 psychiatry physician records list a practice address in Athens
They are 18 of the 2,613 NPPES records with a practice address in Athens, and 1,587 psychiatry physician records in Ohio.
All 1,587 in Ohio → Every provider in Athens → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Janice Carrick, D.O.Athens, OH 457011619985785
- Kelly Coon, D.O.Athens, OH 457011639141450
- Anthony Derrico, D.O.Athens, OH 457011609886993
- Gerard Hyacinthe, M. D.Athens, OH 457011780690164
- Bruce Jones, MDAthens, OH 457011588671051
- Mark McGee, M. D.Athens, OH 457011073524351
- Patricia Mickunas, MDAthens, OH 457011992965370
- Sathya Rajan, MDAthens, OH 457011073614335
Common questions
What is John M. Hamill, MD's NPI number?
John M. Hamill, MD's National Provider Identifier (NPI) is 1861483703, issued on Oct 31, 2005. An NPI identifies a provider in billing; it is not a license.
Where is John M. Hamill, MD located?
The NPPES record lists a practice address at 100 Hospital Dr, Athens, OH, 45701. Phone: (740) 594-5000. Providers update this record themselves, so call before visiting.
How can I verify John M. Hamill, MD's license?
NPPES lists Ohio license number 35056975, 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.