Brian Cassmassi, M.D.
NPI 1235448879 · Psychiatry Physician · West Hollywood, CA
Brian Cassmassi, M.D. is a Psychiatry Physician provider in West Hollywood, CA (NPI 1235448879).
Provider details
- NPI number
- 1235448879
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A113944 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
15 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-09-30
- Last updated
- 2016-01-26
Frequently asked questions
- What is Brian Cassmassi's NPI number?
- Brian Cassmassi's National Provider Identifier (NPI) is 1235448879, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Brian Cassmassi's specialty?
- Brian Cassmassi is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Brian Cassmassi located?
- Brian Cassmassi's practice location on file with NPPES is 8700 Beverly Blvd, West Hollywood, CA 90048-1804.
- What is Brian Cassmassi's phone number?
- The practice phone number listed in the NPPES registry for Brian Cassmassi is (310) 423-2600.
- Is Brian Cassmassi's NPI active?
- Yes — Brian Cassmassi's NPI (1235448879) is active in the NPPES registry as of the last update on 2016-01-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.