University Healthcare Alliance
NPI 1225571771 · Hematology & Oncology Physician · Castro Valley, CA
University Healthcare Alliance is a Hematology & Oncology Physician organization in Castro Valley, CA (NPI 1225571771).
Provider details
- NPI number
- 1225571771
- Entity type
- Organization
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Kristine Ruslen, Director of Reimbursement(510) 974-8297
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
9 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
- 2016-11-30
- Last updated
- 2017-06-30
Frequently asked questions
- What is University Healthcare Alliance's NPI number?
- University Healthcare Alliance's National Provider Identifier (NPI) is 1225571771, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is University Healthcare Alliance?
- University Healthcare Alliance is classified in the NPPES registry as Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is University Healthcare Alliance located?
- University Healthcare Alliance's practice location on file with NPPES is 20055 Lake Chabot Rd, Castro Valley, CA 94546-5331.
- What is University Healthcare Alliance's phone number?
- The practice phone number listed in the NPPES registry for University Healthcare Alliance is (510) 888-0657.
- Who is the authorized official for University Healthcare Alliance?
- The authorized official listed on University Healthcare Alliance's NPPES record is Kristine Ruslen, Director of Reimbursement. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is University Healthcare Alliance's NPI active?
- Yes — University Healthcare Alliance's NPI (1225571771) is active in the NPPES registry as of the last update on 2017-06-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.