Question: Larry Bryggman played a doctor on television that left to work at what hospital in Baltimore, Maryland? 
Context: Michael Louden (April 21, 1964 – September 4, 2004) was born in Marblehead, Massachusetts and went on to become an actor.  He studied theater at the University of North Carolina at Chapel Hill but graduated from Juilliard.  He started as a 1988-day player on daytime soap "Another World" but his most notable role was Duke Kramer "As the World Turns".  Duke was a moody young man who discovered his father was the volatile John Dixon (allowing Louden many scenes with theater powerhouse Larry Bryggman).  Duke went on to medical school as well as a lengthy relationship with Lien Hughes, played by future "ER" star Ming-Na.  Louden played the role from 1988 to 1990 and for a brief visit in 1993. "The Maryland Zoo" — also known as "The Maryland Zoo in Baltimore" and formerly known as "The Baltimore City Zoo" or the "Baltimore Zoo" — is a 135-acre park located in historic Druid Hill Park in the northwestern area of the City of Baltimore, Maryland, (U.S.A.), with the postal address of 1876 Mansion House Drive.  Druid Hill was opened in 1860 as the first major park purchase by the City under foreseeing Mayor Thomas Swann (1809-1883), (and later Governor of Maryland) and was later designed by famed nationally-known landscaper Frederick Law Olmsted (1822-1903) , with additional work on various park buildings contributed by future Baltimore City Hall architect George A. Frederick (1842-1924), and Park Commissioner John H.B. Latrobe (son of earlier famed British-American architect Benjamin Henry Latrobe [1764-1820]), who also was an accomplished lawyer, author, artist, amateur architect and civic leader.  Olmsted had earlier won a contest for the design of plans for New York City's famed Central Park in mid-town Manhattan in 1858, a year after it opened, and worked on the massive public works project during its construction from 1858 to 1873.  The Maryland Zoo is now currently home to over 2,000 animals, and is accredited by the Association of Zoos and Aquariums (AZA). Provident Hospital began as a 10-bed clinic in a private residence at 419 Orchard St, in northwest Baltimore, Maryland in 1894 to provide both medical treatment and training for Black nurses and doctors.  The hospital was founded by Negro physicians who were practicing in the Baltimore area just a year after the founding of the first Black-owned and operated hospital, Provident Hospital of Chicago.  Within two years it moved to a larger site at 413 W. Biddle Street.  Provident Hospital was one of the first black medical facilities located in Baltimore. Theater Company of Boston (TCB) was co-founded by David Wheeler and Naomi Thornton in 1963.  Wheeler served as its artistic director until its closure in 1975.  Actors including Al Pacino, Robert DeNiro, Dustin Hoffman, Robert Duvall, Jon Voight, Stockard Channing, James Woods, Blythe Danner, Larry Bryggman, John Cazale, Hector Elizondo, Spalding Gray, Paul Guilfoyle, Ralph Waite, Charles Siebert and Paul Benedict were part of the company.  Following Wheeler's death, Pacino described him as "one of the lights of my life". John Dixon M.D. is a fictional character on the American TV soap opera, "As the World Turns".  He was portrayed by Larry Bryggman from July 18, 1969 until December 14, 2004.  Dixon is a cardiologist at Oakdale Memorial Hospital where he is also Chief and Acting Chief of Staff at Memorial Hospital.  Though the character stopped appearing in 2004, when Bryggman left the show, no mention was made of his having left town.  However, after Larry Bryggman returned to the show on August 27, 2010, Bob Hughes mentioned that Dixon had been at Johns Hopkins.  The character remained on the show for its final month, appearing in the last episode in September 2010. Nellie Louise Young (June 7, 1907 - September 22, 1997) was the first African American woman licensed to practice medicine in Maryland.  Young was born in Baltimore, Maryland, to Dr. Howard E. Young, Maryland's first African American pharmacist, and Estelle Hall Young.  Her father's pharmacy served as a place of inspiration for Young as a child:"I admired the doctors...and I wanted to be able to send my prescriptions to my father's drugstore. "She attended the old Colored High School (now Fredrick Douglass High School) in Baltimore.  Following her graduation in 1924, Young enrolled in Howard University where she earned her bachelor of science degree in social sciences and later obtained her medical degree from the Howard University School of Medicine in 1930.  Young initially served as an intern at Freedmen’s Hospital in Washington, D.C., after she was not accepted to the Provident Hospital in Baltimore due to the lack of housing accommodations for women.  After her internship, Young opened her own practice in offices above her father's drugstore in 1932.  Around the same time, she was appointed staff physician at the Maryland Training School for Girls, where she served from 1933-1940. David Findley Wheeler (c. 1925 – January 4, 2012) was an American theatrical director.  He was the founder and artistic director of the Theater Company of Boston (TCB) from 1963 to 1975.  He served as its artistic director until its closure in 1975.  Actors including Al Pacino, Robert DeNiro, Dustin Hoffman, Robert Duvall, Jon Voight, Stockard Channing, James Woods, Blythe Danner, Larry Bryggman, John Cazale, Hector Elizondo, Spalding Gray, Paul Guilfoyle, Ralph Waite and Paul Benedict were part of the company. Sinai Hospital is an American private hospital based in Baltimore, Maryland, that was founded in 1866 as the Hebrew Hospital and Asylum.  It is now a Jewish-sponsored ANCC Magnet and teaching hospital that provides care for patients in the greater Baltimore City, Baltimore County and surrounding communities.  The implantable cardioverter-defibrillator (ICD) was invented here by the team of Dr. Michel Mirowski, Dr. Morton Mower, M. Stephen Heilman, and Alois Langer who are all in the National Inventors Hall of Fame for their achievement. Charles Calvert, 3rd Baron Baltimore (August 27, 1637 – February 21, 1715), inherited the colony of Maryland in 1675 upon the death of his father, Cecil Calvert, 2nd Baron Baltimore, (1605–1675).  He had been his father's Deputy Governor since 1661 when he arrived in the colony at the age of 24.  However, Charles left Maryland for England in 1684 and would never return.  The events following the Glorious Revolution in England in 1688 would cost Calvert his title to Maryland; in 1689 the royal charter to the colony was withdrawn, leading to direct rule by the British Crown.  Calvert's political problems were largely caused by his Roman Catholic faith which was at odds with the established Church of England.  Calvert married four times, outliving three wives, and had at least two children.  He died in England in 1715 at the age of 78, his family fortunes much diminished.  With his death he passed his title, and his claim to Maryland, to his second son Benedict Leonard Calvert, 4th Baron Baltimore (1679–1715), his eldest son Cecil having died young.  However, Benedict Calvert would outlive his father by just two months, and It would fall to Charles' grandson, Charles Calvert, 5th Baron Baltimore, (1699–1751), (who converted to the Anglican faith) to see the family proprietorship in Maryland restored by the king. The Johns Hopkins Hospital (JHH) is the teaching hospital and biomedical research facility of the Johns Hopkins School of Medicine, located in Baltimore, Maryland, U.S.  It was founded in 1889 using money from a bequest by philanthropist Johns Hopkins.  Johns Hopkins Hospital and the school of medicine are the founding institutions of modern American medicine and the birthplace of numerous medical traditions including rounds, residents and housestaff.  Many medical specialties were formed at the hospital including neurosurgery, by Harvey Cushing; cardiac surgery by Alfred Blalock; and pediatrics and child psychiatry, by Leo Kanner.
Answer: Johns Hopkins Hospital