William Hartmann MD
About this NPIWhat this record shows.
NPI 1255318408 is registered to William Hartmann MD, a Psychiatry practising at 4075 Old Western Row Rd in Mason, Ohio. Psychiatry is the medical specialty focused on the diagnosis, treatment, and prevention of mental health conditions, including depression, anxiety, bipolar disorder, and schizophrenia. William Hartmann MD has been enumerated in the National Provider Identifier (NPI) registry since 2005.
Your brand here.
Secondary identifiers
Additional identifiers this provider has registered with NPPES. Used by medical billers, credentialers, and insurance verifiers to cross-reference claims and enrollments.
Other
- 1841239274OH· Issued by MEDICARE NPI GROUP NUMBER
- 9338635OH· Issued by MEDICARE GROUP NUMBER
- 1144401464OH· Issued by PRACTICE LOCATION NPI GROUP NUMBER
- 2774985OH· Issued by MEDICAID GROUP NUMBER
Medicaid
- 2404900OH
Source: NPPES public registry.
Medicare enrollment
This provider holds a Medicare enrollment on file with the Provider Enrollment, Chain and Ownership System (PECOS). Each enrollment carries a public Medicare Enrollment ID (ENRLMT_ID) used by billers and intermediaries.
Practitioner
- I20080423000238PsychiatryOH
Source: CMS PECOS public enrollment file.
Insurance & acceptsHow to confirm coverage.
The National Plan and Provider Enumeration System (NPPES) registry does not include commercial insurance network data, so we cannot show which plans William Hartmann MD accepts. To confirm in-network status with your specific health plan, contact William Hartmann MD directly at (513) 536-0600.
Frequently asked
Yes. NPI 1255318408 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Psychiatry is the medical specialty focused on the diagnosis, treatment, and prevention of mental health conditions, including depression, anxiety, bipolar disorder, and schizophrenia.
The CMS NPPES Public Registry at npiregistry.cms.hhs.gov is the authoritative source. FindMyNPI mirrors this dataset and refreshes monthly. For real-time verification, you can also call the provider's office at (513) 536-0600.
An individual healthcare provider has a single Type-1 NPI for life. Organisations can hold separate Type-2 NPIs per location, specialty, or sub-entity. William Hartmann MD is a Type-1 individual NPI.