TBT Plan Administration Office

(510) 796-4676 or (800) 533-0119

Telephone Hours

8:30 a.m. to 5:00 p.m. P.S.T.
Monday – Friday (except holidays)

TBT Call Centers Phone: (800) 533-0119 or (510) 796-4676

Client Services Call Center Extension 509

For Participant questions or concerns about your Plan benefits and coverage, claim filing or status, Indemnity Medical Plan deductibles or copayments, Preferred Provider PPO networks, hospital preadmission certification and utilization review or other benefits-related topics.

For Provider questions or concerns about Plan benefits or coverage, claims, hospital preadmission certification and utilization review.

Member Services Call Center Extension 508

For Participant questions or concerns about eligibility, enrollment (or Open Enrollment), changes in family status and COBRA questions about retiree self-payments.

For Participant service issues involving prescription drug coverage, HMOs, dental or vision benefits.

For Employer questions about contributions.

Disability Benefits Call Center Extension 242

For Participant or Employer questions or concerns about disability forms or extended coverage.


TBT Provider List—Phone Numbers/Addresses (PDF)