Christina Umphrey, MD
NPI 1588736391 · Hospitalist Physician · San Jose, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christina Umphrey, MD is a Hospitalist Physician provider in San Jose, CA (NPI 1588736391).
Provider details
- NPI number
- 1588736391
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A91605 (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
- 2006-11-15
- Last updated
- 2022-01-10
Frequently asked questions
- What is Christina Umphrey's NPI number?
- Christina Umphrey's National Provider Identifier (NPI) is 1588736391, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christina Umphrey's specialty?
- Christina Umphrey is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Christina Umphrey located?
- Christina Umphrey's practice location on file with NPPES is 260 International Cir, San Jose, CA 95119-1130.
- What is Christina Umphrey's phone number?
- The practice phone number listed in the NPPES registry for Christina Umphrey is (408) 972-7000.
- Does Christina Umphrey accept Medicare?
- Christina Umphrey is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christina Umphrey's NPI active?
- Yes — Christina Umphrey's NPI (1588736391) is active in the NPPES registry as of the last update on 2022-01-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.