Ronald Bernard Elkin,md a Medical Corporation
NPI 1427301886 · Pulmonary Disease Physician · San Francisco, CA
Ronald Bernard Elkin,md a Medical Corporation is a Pulmonary Disease Physician organization in San Francisco, CA (NPI 1427301886).
Provider details
- NPI number
- 1427301886
- Entity type
- Organization
- Primary specialty
- Pulmonary Disease PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Marsha Summers, Ceo(415) 331-8390
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
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
- 2012-10-23
- Last updated
- 2013-03-12
Frequently asked questions
- What is Ronald Bernard Elkin,md a Medical Corporation's NPI number?
- Ronald Bernard Elkin,md a Medical Corporation's National Provider Identifier (NPI) is 1427301886, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Ronald Bernard Elkin,md a Medical Corporation?
- Ronald Bernard Elkin,md a Medical Corporation is classified in the NPPES registry as Pulmonary Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Ronald Bernard Elkin,md a Medical Corporation located?
- Ronald Bernard Elkin,md a Medical Corporation's practice location on file with NPPES is 2100 Webster St, San Francisco, CA 94115-2373.
- What is Ronald Bernard Elkin,md a Medical Corporation's phone number?
- The practice phone number listed in the NPPES registry for Ronald Bernard Elkin,md a Medical Corporation is (415) 331-8390.
- Who is the authorized official for Ronald Bernard Elkin,md a Medical Corporation?
- The authorized official listed on Ronald Bernard Elkin,md a Medical Corporation's NPPES record is Marsha Summers, Ceo. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Ronald Bernard Elkin,md a Medical Corporation's NPI active?
- Yes — Ronald Bernard Elkin,md a Medical Corporation's NPI (1427301886) is active in the NPPES registry as of the last update on 2013-03-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.