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About this NPIWhat this record shows.
NPI 1003178641 is registered to Dr. Gillian Reierson M.D. PH.D., a Psychiatry practising at 2970 Camino Diablo Fl 1 in Walnut Creek, California. Psychiatry is the medical specialty focused on the diagnosis, treatment, and prevention of mental health conditions, including depression, anxiety, bipolar disorder, and schizophrenia. Dr. Gillian Reierson M.D. PH.D. has been enumerated in the National Provider Identifier (NPI) registry since 2012.
Provider type
Individual (Type 1)
Status
Active
Enumerated
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The National Plan and Provider Enumeration System (NPPES) registry does not include commercial insurance network data, so we cannot show which plans Dr. Gillian Reierson M.D. PH.D. accepts. To confirm in-network status with your specific health plan, contact Dr. Gillian Reierson M.D. PH.D. directly at (925) 360-5264.
Frequently asked
Yes. NPI 1003178641 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 (925) 360-5264.
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. Dr. Gillian Reierson M.D. PH.D. is a Type-1 individual NPI.
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