William Paul Hartmann, MD
Psychiatry Physician · Mason, OH
William Paul Hartmann, MD is a psychiatry physician with a practice address in Mason, Ohio, and NPI 1255318408, issued on Dec 29, 2005. Check the license (Ohio 35-079023, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- William Paul Hartmann
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 35-079023 OH
Self-reported in NPPES; status is on the state search - Practice location
- 4075 Old Western Row RD, Mason, OH 45040
- Phone
- (513) 536-0600
- Enumerated
- Dec 29, 2005
- Record last updated
- Sep 4, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (513) 536-0609
- Medicaid ID
- 2404900 OH
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 1,587 in Ohio → Look up another NPI →
Also registered at 4075 Old Western Row RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Fariha Anika, LPCC-SMental Health Counselor1881045086
- Robin Arthur, PSYDClinical Psychologist1912961566
- Jason Bast, LPCMental Health Counselor1053958512
- Lisa Beckner, NPPsychiatric/Mental Health Nurse Practitioner1871657395
- Danielle BeltzPsychiatric/Mental Health Nurse Practitioner1982127122
- Brookana Bonezzi, CPNP-PC, PMHNP-BCPediatric Nurse Practitioner1225462641
Verify William Paul Hartmann in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 35-079023Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average psychiatry physician in 2024
60 Medicare Part D claims for 13 beneficiaries, against an average of 1,000 among the 35,054 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.
William Paul Hartmann among 1,587 psychiatry physician records in Ohio
William Paul Hartmann, 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 fileNo · 49% of these records are
- Record last updated2015 · 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).
23 psychiatry physician records list a practice address in Mason
They are 23 of the 1,495 NPPES records with a practice address in Mason, and 1,587 psychiatry physician records in Ohio.
All 1,587 in Ohio → Every provider in Mason → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- William Beatty, MDMason, OH 450401710179106
- Leah Casuto, MDMason, OH 450401689684573
- Saba Chughtai, M.D.Mason, OH 450401720027824
- Leslie Deckter, M.D.Mason, OH 450401447576301
- Heather Dlugosz, MDMason, OH 450401811108111
- Brian Dowling, MDMason, OH 450401316956535
- Jenni Farrow, M.D.Mason, OH 450401487866596
- Bakhtier Hasan, M.D.Mason, OH 450401689721524
Common questions
What is William Paul Hartmann, MD's NPI number?
William Paul Hartmann, MD's National Provider Identifier (NPI) is 1255318408, issued on Dec 29, 2005. An NPI identifies a provider in billing; it is not a license.
Where is William Paul Hartmann, MD located?
The NPPES record lists a practice address at 4075 Old Western Row RD, Mason, OH, 45040. Phone: (513) 536-0600. Providers update this record themselves, so call before visiting.
How can I verify William Paul Hartmann, MD's license?
NPPES lists Ohio license number 35-079023, 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 William Paul Hartmann, MD prescribe under Medicare Part D?
In 2024, William Paul Hartmann, MD had 60 Medicare Part D claims for 13 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.