Marianne Sommerville, MD
NPI 1457403818 · Hospitalist Physician · Berkeley, CA
Marianne Sommerville, MD is a Hospitalist Physician provider in Berkeley, CA (NPI 1457403818).
Provider details
- NPI number
- 1457403818
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- G58224 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$4 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 550 1st AveLabor & Delivery, 8 WestNew York, NY 10016-6402Phone: (858) 212-2945
Registry dates
- Enumerated
- 2007-01-17
- Last updated
- 2020-09-09
- Certified
- 2020-09-09
Frequently asked questions
- What is Marianne Sommerville's NPI number?
- Marianne Sommerville's National Provider Identifier (NPI) is 1457403818, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marianne Sommerville's specialty?
- Marianne Sommerville is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Marianne Sommerville located?
- Marianne Sommerville's practice location on file with NPPES is 2450 Ashby Ave Rm 3040, Berkeley, CA 94705-2067.
- What is Marianne Sommerville's phone number?
- The practice phone number listed in the NPPES registry for Marianne Sommerville is (510) 204-3977.
- Is Marianne Sommerville's NPI active?
- Yes — Marianne Sommerville's NPI (1457403818) is active in the NPPES registry as of the last update on 2020-09-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.