Robert Grenn MD
About this NPIWhat this record shows.
NPI 1366079915 is registered to Robert Grenn MD, a Psychiatry practising at 2040 Chambers Rd in Caro, Michigan. Psychiatry is the medical specialty focused on the diagnosis, treatment, and prevention of mental health conditions, including depression, anxiety, bipolar disorder, and schizophrenia. Robert Grenn MD has been enumerated in the National Provider Identifier (NPI) registry since 2020.
Your brand here.
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
- I20240923001366PsychiatryMI
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 Robert Grenn MD accepts. To confirm in-network status with your specific health plan, contact Robert Grenn MD directly at (989) 673-3191.
Frequently asked
Yes. NPI 1366079915 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 (989) 673-3191.
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. Robert Grenn MD is a Type-1 individual NPI.