Marilyn S. Kwolek MD, PC
NPI 1881940427 · Specialist · Danville, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marilyn S. Kwolek MD, PC is a Specialist organization in Danville, CA (NPI 1881940427).
Provider details
- NPI number
- 1881940427
- Entity type
- Organization
- Primary specialty
- SpecialistOther Service Providers
- Organization subpart
- No
- Authorized official
- Marilyn Kwolek, President(925) 838-2677
- License
- C41932 (CA)
Specialties & taxonomies
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
13 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
- 2012-08-01
- Last updated
- 2012-08-01
Frequently asked questions
- What is Marilyn S. Kwolek MD, PC's NPI number?
- Marilyn S. Kwolek MD, PC's National Provider Identifier (NPI) is 1881940427, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Marilyn S. Kwolek MD, PC?
- Marilyn S. Kwolek MD, PC is classified in the NPPES registry as Specialist (Other Service Providers).
- Where is Marilyn S. Kwolek MD, PC located?
- Marilyn S. Kwolek MD, PC's practice location on file with NPPES is 917 San Ramon Valley Blvd Ste 199, Danville, CA 94526-4032.
- What is Marilyn S. Kwolek MD, PC's phone number?
- The practice phone number listed in the NPPES registry for Marilyn S. Kwolek MD, PC is (925) 838-2677.
- Does Marilyn S. Kwolek MD, PC accept Medicare?
- Marilyn S. Kwolek MD, 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 Marilyn S. Kwolek MD, PC?
- The authorized official listed on Marilyn S. Kwolek MD, PC's NPPES record is Marilyn Kwolek, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Marilyn S. Kwolek MD, PC's NPI active?
- Yes — Marilyn S. Kwolek MD, PC's NPI (1881940427) is active in the NPPES registry as of the last update on 2012-08-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.