Biography
Patrick Simmons (born October 19, 1948) is an American musician best known as a founding member of the rock band The Doobie Brothers, with whom he was inducted as into the Rock and Roll Hall of Fame in 2020. He is the only member of the band to appear on every release.
Bio from Wikipedia
Discography
Records they worked on — most-collected first.

Best Of The Doobies
1976

The Captain And Me
1973

Minute By Minute
1978

Waiting For Columbus
1978

What Were Once Vices Are Now Habits
1974

Toulouse Street
1972

Time Loves A Hero
1977

Takin' It To The Streets
1976

Wildflower
2016

Stampede
1975

Nicolette
1978

Another Passenger
1976

Livin' On The Fault Line
1977

Best Of The Doobies Volume II
1981

Hoy-Hoy!
1981

In Harmony - A Sesame Street Record
1980

One Step Closer
1980

No Nukes - From The Muse Concerts For A Non-Nuclear Future - Madison Square Garden - September 19-23, 1979
1979

Industry Standard
1982

Victim Of Love
1979

Farewell Tour
1983

Energy
1978

Listen To The Music
1972

World Gone Crazy
2010
Credited work
1,896 releases · 111 albums · active 1966–2025
- Performance · 7,004
- Other credits · 388
- Production · 2
- Engineering · 1
Studios: Warner Bros. Recording Studios · Sunset Sound Recorders · Record Plant, Sausalito · Wally Heider Studios
Frequent collaborators
- The Doobie Brothers
- Various
- Little Feat
- Michael McDonald
- Elton John
- Nicolette Larson
- Tom Johnston
- Pointer Sisters
