Mark Benyunes, M.D.
NPI 1538418298 · Medical Oncology Physician · South San Francisco, CA
Mark Benyunes, M.D. is a Medical Oncology Physician provider in South San Francisco, CA (NPI 1538418298).
Provider details
- NPI number
- 1538418298
- Entity type
- Individual
- Primary specialty
- Medical Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- MD00026459 (WA)
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
- 2012-09-09
- Last updated
- 2012-09-09
Frequently asked questions
- What is Mark Benyunes's NPI number?
- Mark Benyunes's National Provider Identifier (NPI) is 1538418298, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Benyunes's specialty?
- Mark Benyunes is listed in the NPPES registry with a primary specialty of Medical Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Benyunes located?
- Mark Benyunes's practice location on file with NPPES is 1 Dna Way, South San Francisco, CA 94080-4918.
- What is Mark Benyunes's phone number?
- The practice phone number listed in the NPPES registry for Mark Benyunes is (650) 225-1628.
- Is Mark Benyunes's NPI active?
- Yes — Mark Benyunes's NPI (1538418298) is active in the NPPES registry as of the last update on 2012-09-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.