Louis Ostrowsky
About this NPIWhat this record shows.
NPI 1306135082 is registered to Louis Ostrowsky, a Psychiatry practising at 1493 Cambridge St, Macht Building Room 206 in Cambridge, Massachusetts. Psychiatry is the medical specialty focused on the diagnosis, treatment, and prevention of mental health conditions, including depression, anxiety, bipolar disorder, and schizophrenia. Louis Ostrowsky has been enumerated in the National Provider Identifier (NPI) registry since 2011.
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
- I20151118002048PsychiatryMA
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 Louis Ostrowsky accepts. To confirm in-network status with your specific health plan, contact Louis Ostrowsky directly at (617) 665-1187.
Frequently asked
Yes. NPI 1306135082 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 (617) 665-1187.
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. Louis Ostrowsky is a Type-1 individual NPI.