|Created by||Jason Horwitch|
|Country of origin||United States|
|No. of seasons||1|
|No. of episodes||20 (List of episodes)|
|Running time||60 minutes|
|Production company(s)||Landscape Entertainment
Paramount Network Television
NBCUniversal Television Studio
|Original run||September 9, 2004– March 25, 2005|
|Related shows||Third Watch
Medical Investigation is an American medical drama television series that began September 9, 2004, on NBC. It ran for 20 one-hour episodes before being cancelled in 2005. The series was co-produced by Paramount Network Television (now CBS Television Studios) and NBCUniversal Television Studio (now Universal Television) The former controls North American distribution rights, while the latter distributes outside North America.
The series featured the cases of an elite team of medical experts of the National Institutes of Health (NIH) who investigate unusual public-health crises, such as sudden outbreaks of serious and mysterious diseases. In actuality, medical investigative duties in the United States are normally the responsibility of the Centers for Disease Control and Prevention (CDC) and local health departments, while the NIH is primarily a disease-research and -theory organization.
The series existed in the same television universe as Third Watch and, by extension ER (both are owned by Warner Bros. Television and John Wells). A special two-part crossover event aired on February 18, 2005, establishing the television-universe connection by featuring the Third Watch and Medical Investigation teams working together in MI's Episode 17: "Half Life" and Third Watch's Episode 16 of the sixth season: "In the Family Way". The story was about a series of Marburg virus cases in New York.
In the UK, Five's digital channel Five USA showed the series daily at 6pm from the 2nd November 2009.
- Neal McDonough plays Dr. Stephen Connor; the leader of the team whose medical career has separated him from his family. Connor was previously a Captain in the US Army, and fought in the Gulf War.
- Kelli Williams plays Dr. Natalie Durant; an expert in pathology and epidemiology, who often questions Connor, although serving as the team's second-in-command.
- Christopher Gorham plays Dr. Miles McCabe; the newest and youngest member of the team; frequently tries to prove his worth.
- Troy Winbush plays Frank Powell; a highly skilled medical investigator who has been friends with Connor for sometime. Previously served in the US Navy.
- Anna Belknap plays Eva Rossi; the team's media liaison who prevents the team's investigations from causing public panic.
- Australia - Network Ten
- Belgium - VT4
- Brazil - Warner Channel (cable) and SBT (free-to-air)
- Canada - Global TV (French: Series Plus)
- Croatia - Nova TV
- Czech - TV Nova
- Denmark - TV2
- Estonia - Kanal 2
- Finland - Nelonen
- France - M6, then W9, under the title "NIH : alertes médicales"
- Germany - ProSieben, reruns in 2009 at Kabel eins, reruns in 2010 at sixx
- Greece - Alpha TV
- Hungary - TV2 (Hungary)
- Ireland - Sci Fi
- Italy - Fox, RAI
- Japan - Fox
- Malaysia - STAR World and TV3
- Middle East - MBC Action
- Netherlands - SBS6, Veronica
- New Zealand - TV3
- Norway - TV2, TV2 Zebra
- Philippines - RPN 9, Star World
- Poland - TVN Siedem and AXN
- Portugal - Sony Entertainment Television
- Macedonia - Local Televisions
- Slovakia - Markíza
- Spain - Telecinco
- Serbia - Zona Plus
- Sweden - TV4 Plus
- Turkey - MyMax
- United Kingdom - Channel 5 (UK), Sci Fi
- Ukraine - Inter
- USA - NBC
The USA Network began running reruns on January 6, 2005, in what is called a "repurposed" broadcast. It is, however, no different from the original broadcasts. High definition reruns of the show are being broadcast on the Universal HD channel. In January 2007 the series began airing on NBC Universal's mystery and crime-themed cable channel, Sleuth.