Tufts Medical Center Physicians Organization, Inc. 401(k) Plan
What public Form 5500 filings show about the Tufts Medical Center Physicians Organization, Inc. 401(k) plan — and how to find and check your own account.
The Tufts Medical Center Physicians Organization, Inc. 401(k) on its latest Form 5500
Tufts Medical Center Physicians Organization, Inc. (EIN 04-3044706) reports TUFTS MEDICAL CENTER PHYSICIANS ORGANIZATION, INC. 401(A) RETIREMENT PLAN on its most recent Form 5500, with $478.2M in plan assets across 736 active participants. Form 5500 is the annual report employers file with the U.S. Department of Labor for their retirement plans, and it’s public.
See the full Tufts Medical Center Physicians Organization, Inc. filing — schedules, fees, and providers.
Who runs the Tufts Medical Center Physicians Organization, Inc. 401(k)?
The plan’s recordkeeper — the firm that runs the website and statements where you check your balance, change contributions, and manage your account — is Vanguard, based on the plan’s Schedule C service-provider disclosure. That’s the login you use for your Tufts Medical Center Physicians Organization, Inc. 401(k).
Other service providers named on the filing (investment managers, trustees, auditors — not necessarily the recordkeeper): FIDELITY INVESTMENTS INSTITUTIONAL.
How to check your Tufts Medical Center Physicians Organization, Inc. 401(k)
- Log in to Vanguard’s participant portal (the site on your statements).
- Ask Tufts Medical Center Physicians Organization, Inc. HR or benefits for the recordkeeper name and enrollment link.
- Left the company? Your balance stays in the plan until you roll it over — see how to find a lost 401(k).

