Gregory Vassilev MD Inc
NPI 1255603213 · Anesthesiology Physician · Sherman Oaks, CA
Gregory Vassilev MD Inc is a Anesthesiology Physician organization in Sherman Oaks, CA (NPI 1255603213).
Provider details
- NPI number
- 1255603213
- Entity type
- Organization
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Gregory Vassilev, President(818) 550-0900
- License
- A63560 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
14 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
- 2012-02-06
- Last updated
- 2012-02-06
Frequently asked questions
- What is Gregory Vassilev MD Inc's NPI number?
- Gregory Vassilev MD Inc's National Provider Identifier (NPI) is 1255603213, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Gregory Vassilev MD Inc?
- Gregory Vassilev MD Inc is classified in the NPPES registry as Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Vassilev MD Inc located?
- Gregory Vassilev MD Inc's practice location on file with NPPES is 4929 Van Nuys Blvd, Sherman Oaks, CA 91403-1702.
- What is Gregory Vassilev MD Inc's phone number?
- The practice phone number listed in the NPPES registry for Gregory Vassilev MD Inc is (818) 981-7111.
- Who is the authorized official for Gregory Vassilev MD Inc?
- The authorized official listed on Gregory Vassilev MD Inc's NPPES record is Gregory Vassilev, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Gregory Vassilev MD Inc's NPI active?
- Yes — Gregory Vassilev MD Inc's NPI (1255603213) is active in the NPPES registry as of the last update on 2012-02-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.