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Shirley Liu Underwood

Primary Care Physicians — Internal Medicine · Senior care facility

Primary Care Physicians — Internal MedicineMedium data-match confidence

Directory record — please verify

This listing comes from Align Senior Care California HMO I-SNP Provider Directory and was updated July 3, 2026. It does not confirm Medicare coverage, plan network, referral or prior authorization, offered services, or current availability. Verify each item directly before scheduling.

At a glance

Shirley Liu Underwood is listed as a Primary Care Physicians — Internal Medicine in Oxnard, CA. Call (805) 604-4588 to confirm current participation and availability.

Services & care categories

Physician / specialist

Medicare questions to ask

1Do you currently accept Medicare assignment for these services?
2Is this location in-network for my Medicare Advantage plan?
3Will I need a referral or prior authorization before my visit?
4What out-of-pocket costs should I expect under Medicare?
5Do you provide the specific care I need (pain management, PM&R, behavioral health, or mild TBI)?

Location

Frequently asked questions

Does Shirley Liu Underwood accept Medicare?

Shirley Liu Underwood is an imported senior-care record. Confirm Medicare participation and network status directly with the facility before scheduling.

Where is Shirley Liu Underwood located?

Shirley Liu Underwood is located at 2000 Outlet Center Dr Ste 110, Oxnard, CA 93036.

What is the phone number for Shirley Liu Underwood?

You can reach Shirley Liu Underwood at (805) 604-4588.

What care does Shirley Liu Underwood offer?

Listed services include Physician / specialist. Verify availability with the facility.

Source

Align Senior Care California HMO I-SNP Provider Directory (align_ca_providers.csv).

County: Ventura · Accepting new patients: Yes · Available as of: 2023-08-01

How directory records are sourced and updated

Medicare questions to ask

1Do you currently accept Medicare assignment for these services?
2Is this location in-network for my Medicare Advantage plan?
3Will I need a referral or prior authorization before my visit?
4What out-of-pocket costs should I expect under Medicare?
5Do you provide the specific care I need (pain management, PM&R, behavioral health, or mild TBI)?

Location

Frequently asked questions

Does Shirley Liu Underwood accept Medicare?

Shirley Liu Underwood is an imported senior-care record. Confirm Medicare participation and network status directly with the facility before scheduling.

Where is Shirley Liu Underwood located?

Shirley Liu Underwood is located at 2000 Outlet Center Dr Ste 110, Oxnard, CA 93036.

What is the phone number for Shirley Liu Underwood?

You can reach Shirley Liu Underwood at (805) 604-4588.

What care does Shirley Liu Underwood offer?

Listed services include Physician / specialist. Verify availability with the facility.

Source

Align Senior Care California HMO I-SNP Provider Directory (align_ca_providers.csv).

County: Ventura · Accepting new patients: Yes · Available as of: 2023-08-01

How directory records are sourced and updated