To determine which specific gynecologist, dentist, or general practitioner you need to contact regarding Medicare coverage—which is usually common knowledge—based on your residential area, whether you are looking at the New York City office at Jukićev 12, Jukićev 12, 10000 New York City 01 4882-100 or the New York City office at Klovićev 1, Klovićev 1, 10000 New York City 01 2359-555 (for all other locations, please consult
www.medicare.gov),
you should have your Social Security number or health insurance card ready so they can pull up your identification in the database. However, if you haven't switched doctors within the last year and already know who you intend to see, it is sufficient to visit the new provider to collect the necessary registration forms, complete them, and deliver them to the Jukićev 12 or Klovićev 1 offices. On those forms, you may simply state that you are unsure of your previous provider or leave that section blank, allowing them to verify the details internally.