WebMD: Physician Directory
- Search for a doctor in the United States, by name, location or specialty.
- http://doctor.webmd.com/physician_finder/

National Practitioner Data Bank
- Central repository of information on doctors, dentists, and other healthcare providers. Contains reports on malpractice payments and other adverse actions.
- http://www.npdb-hipdb.com/

W2P2 Technologies Corp.
- Offers a search function to locate a doctor by specialty or geographic area.
- http://www.iknowdoctors.com

Board Certified Physicians in Ambulatory Medicine
- About the American Academy of Ambulatory Medicine and the American Board of Ambulatory Medicine. Offers the ability to locate an ambulatory medicine physician by name, state, certification, practice or specialty.
- http://www.ambulatorymedicine.org

American doctor referral network
- Physician directory and referral service online.
- http://www.americandoctorreferral.net

Physician.com
- Links to abstracts of professional journal articles of interest to healthcare professionals. Requires free registration to access full abstracts and topic specific e-mailed updates.
- http://www.physician.com

Indian Doctors Directory
- A large database of Indian doctors. Search based on name, speciality, city, state and pincode.
- http://www.medindia.net/patients/doctor_search/dr_find.asp

MediGuide
- An on-line directory of hospitals and physicians available all over the world in 16 languages. Services help both referring physicians and consumers.
- http://www.mediguide.com

Spine Directory
- Searchable database of neurosurgeons, orthopedic surgeons, pain specialists, physiatrists, and chiropractors in the United States.
- http://www.spine-health.com/find/fi01.html

Medicare Participating Physician Directory
- Contains information on participating doctors who have agreed to accept assignment on all Medicare claims and covered services.
- http://www.medicare.gov/Physician/Home.asp

DocFinder
- A health professional licensing database provided by the Association of State Medical Board Executive Directors and Administrators in Medicine. Find doctors and other healthcare providers in your area.
- http://www.docboard.org/

Physician Directory
- A national directory of physicians, doctors, and health care providers.
- http://physician--directory.com

Filipino Physicians Database
- Information on Filipino doctors worldwide.
- http://doktorko.com

AMA Physician Select
- Provides information on member physicians in the United States.
- http://www.ama-assn.org/aps/amahg.htm

Doctordirectory.com
- Searchable database of over 600,000 physicians, with information including practice name, specialties, office hours, and contact information.
- http://www.doctordirectory.com

Search for STS Surgeons
- Information on thoracic and cardiovascular surgeons from members of the Society of Thoracic Surgeons.
- http://www.sts.org/member/sts/

Investigate Your Doctor
- Find educational background, disciplinary history and malpractice, states in which a physician is licensed to practice or held a license, honors and specialty certificates.
- http://www.investigateyourdoctor.com

Medical Pages
- Directory listing UK health sites, hospitals, GP practices, specialist sites, support groups, medical and health products.
- http://www.medicalpages.co.uk

Active Health Management
- Resources and healthcare provider locator.
- http://www.activehealth.ca

Doctors Infoseek
- Search for doctors, dentists, pharmacies and hospitals.
- http://www.doctorsinfoseek.com/

Doctorpage.com
- Directory of doctors and physicians websites.
- http://www.doctorpage.com

Directory of Physician Groups and Networks
- Searchable directory of physician, healthcare and medical groups in the United States.
- http://www.dpgn.com/