Constantina Master, MD
NPI 1194803999 · Critical Care Medicine (Internal Medicine) Physician · Oakland, CA
Enrolled with Medicare as Practitioner - Critical Care (intensivists) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Constantina Master, MD is a Critical Care Medicine (Internal Medicine) Physician provider in Oakland, CA (NPI 1194803999).
Provider details
- NPI number
- 1194803999
- Entity type
- Individual
- Primary specialty
- Critical Care Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- G71494 (CA)
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
19 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
- 2006-11-01
- Last updated
- 2021-12-13
Frequently asked questions
- What is Constantina Master's NPI number?
- Constantina Master's National Provider Identifier (NPI) is 1194803999, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Constantina Master's specialty?
- Constantina Master is listed in the NPPES registry with a primary specialty of Critical Care Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Constantina Master located?
- Constantina Master's practice location on file with NPPES is 280 W Macarthur Blvd, Oakland, CA 94611-5642.
- What is Constantina Master's phone number?
- The practice phone number listed in the NPPES registry for Constantina Master is (510) 752-1000.
- Does Constantina Master accept Medicare?
- Constantina Master is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Constantina Master's NPI active?
- Yes — Constantina Master's NPI (1194803999) is active in the NPPES registry as of the last update on 2021-12-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.