Douglas Mack, MD

Physical Medicine & Rehabilitation · Southern California Permanente Medical Group

Physical Medicine & RehabilitationHigh data-match confidence

Directory record — please verify

This listing comes from CMS Medicare Doctors and Clinicians data and was updated August 2, 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

Douglas Mack, MD is listed as a Physical Medicine & Rehabilitation in Fontana, CA. Call 9094275000 to confirm current participation and availability.

Services & care categories

Physical Medicine & Rehabilitation Accepts Medicare assignment Telehealth available

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 Douglas Mack, MD accept Medicare?

Douglas Mack, MD is an imported senior-care record. Confirm Medicare participation and network status directly with the facility before scheduling.

Where is Douglas Mack, MD located?

Douglas Mack, MD is located at 9961 Sierra Ave, Fontana, CA 92335.

What is the phone number for Douglas Mack, MD?

You can reach Douglas Mack, MD at 9094275000.

What care does Douglas Mack, MD offer?

Listed services include Physical Medicine & Rehabilitation, Accepts Medicare assignment, Telehealth available. Verify availability with the facility.

Source

CMS Medicare Doctors and Clinicians data.

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 Douglas Mack, MD accept Medicare?

Douglas Mack, MD is an imported senior-care record. Confirm Medicare participation and network status directly with the facility before scheduling.

Where is Douglas Mack, MD located?

Douglas Mack, MD is located at 9961 Sierra Ave, Fontana, CA 92335.

What is the phone number for Douglas Mack, MD?

You can reach Douglas Mack, MD at 9094275000.

What care does Douglas Mack, MD offer?

Listed services include Physical Medicine & Rehabilitation, Accepts Medicare assignment, Telehealth available. Verify availability with the facility.