Medical Specialists Associates PC
NPI 1326404948 · Anesthesiology Physician · Clearlake, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Medical Specialists Associates PC is a Anesthesiology Physician organization in Clearlake, CA (NPI 1326404948).
Provider details
- NPI number
- 1326404948
- Entity type
- Organization
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Christopher Voscopoulos, Owner(949) 306-2957
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
- Pain Medicine (Anesthesiology) Physician207LP2900X
Allopathic & Osteopathic Physicians
- Emergency Medicine Physician207P00000X
Allopathic & Osteopathic Physicians
- Family Medicine Physician207Q00000X
Allopathic & Osteopathic Physicians
- Internal Medicine Physician207R00000X
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
10 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
10 documented practice locations
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
Additional practice locations (9)
- 5189 Hospital RdMariposa, CA 95338-9524Phone: (209) 966-3631
- 180 Rowland WayNovato, CA 94945-5009Phone: (415) 209-1300
- 10 Woodland RdSaint Helena, CA 94574-9554Phone: (707) 963-6399Fax: (707) 967-5915
- 34 Mark West Springs Rd Ste 100Santa Rosa, CA 95403-1783Phone: (707) 541-3500Fax: (707) 573-5400
- 30 Mark West Springs RdSanta Rosa, CA 95403-1436Phone: (707) 576-4000
- 347 Andrieux StSonoma, CA 95476-6811Phone: (707) 935-5000Fax: (707) 569-8965
- 19270 Sonoma HighwaySonoma, CA 95476Phone: (707) 939-6070Fax: (707) 939-6077
- 1 General StLawrence, MA 01841-2961Phone: (978) 683-4000
- 9300 W Sunset Rd
Registry dates
- Enumerated
- 2016-01-12
- Last updated
- 2024-03-29
- Certified
- 2024-03-29
Frequently asked questions
- What is Medical Specialists Associates PC's NPI number?
- Medical Specialists Associates PC's National Provider Identifier (NPI) is 1326404948, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Medical Specialists Associates PC?
- Medical Specialists Associates PC is classified in the NPPES registry as Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Medical Specialists Associates PC located?
- Medical Specialists Associates PC's practice location on file with NPPES is 15630 18th Ave, Clearlake, CA 95422-9336.
- What is Medical Specialists Associates PC's phone number?
- The practice phone number listed in the NPPES registry for Medical Specialists Associates PC is (707) 994-6486.
- Does Medical Specialists Associates PC accept Medicare?
- Medical Specialists Associates PC is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Medical Specialists Associates PC?
- The authorized official listed on Medical Specialists Associates PC's NPPES record is Christopher Voscopoulos, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Medical Specialists Associates PC's NPI active?
- Yes — Medical Specialists Associates PC's NPI (1326404948) is active in the NPPES registry as of the last update on 2024-03-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.