Ryan Ash MD, PHD
About this NPIWhat this record shows.
NPI 1023514411 is registered to Ryan Ash MD, PHD, a Psychiatry practising at 300 Pasteur Dr in Palo Alto, California. Psychiatry is the medical specialty focused on the diagnosis, treatment, and prevention of mental health conditions, including depression, anxiety, bipolar disorder, and schizophrenia. Ryan Ash MD, PHD has been enumerated in the National Provider Identifier (NPI) registry since 2018.
Your brand here.
Medicare enrollment
This provider holds 2 Medicare enrollments 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
- I20220823003340PsychiatryCA
- I20230530000749PsychiatryCA
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 Ryan Ash MD, PHD accepts. To confirm in-network status with your specific health plan, contact Ryan Ash MD, PHD directly at (650) 723-4000.
Frequently asked
Yes. NPI 1023514411 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 (650) 723-4000.
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. Ryan Ash MD, PHD is a Type-1 individual NPI.