Filing pursuant to Rule 424(b) (3)
                                            Registration Statement No. 333-63782

                  PROSPECTUS SUPPLEMENT NO. 3 DATED MAY 3, 2004

                     (TO PROSPECTUS DATED NOVEMBER 1, 2001)

                                1,000,000 SHARES

FONAR CORPORATION

                                  COMMON STOCK

This  prospectus  supplement  covers  1,000,000  shares of the 9,900,000  shares
covered by the prospectus dated November 1, 2001 and the registration  statement
of which it is a part.  This  prospectus  supplement  relates to a change in the
exercise  price under and the number of shares  covered by the Purchase  Warrant
previously issued by us to The Tail Wind Fund Ltd. on May 24, 2001 in connection
with a financing  transaction pursuant to which The Tail Wind Fund Ltd. provided
Fonar  Corporation $4.5 million payable pursuant to a 4% Convertible  Debenture.
In addition to the Purchase Warrant Fonar also issued to The Tail Wind Fund Ltd.
a Callable  Warrant.  The Purchase  Warrant as amended and restated on April 28,
2004 covers  1,000,000  shares of our common stock at an exercise price of $0.79
per share. See "Purchase Warrant" below for a more detailed description of these
changes and the Purchase Warrant.

You  should  read  this  prospectus   supplement  along  with  the  accompanying
prospectus.  These documents contain information you should consider when making
your  investment  decision.  You should rely only on  information  contained  or
incorporated  by reference in this  prospectus  supplement and the  accompanying
prospectus.  We have not authorized anyone else to provide you with different or
additional  information.  You  should not assume  that the  information  in this
prospectus  supplement  is  accurate  as of any date  other than the date on the
front of this document.  The prior two prospectus supplements concerned only the
Callable  Warrant issued with the Purchase  Warrant,  which Callable Warrant has
been exercised in full.

The prospectus  supplement and the accompanying  prospectus do not constitute an
offer to sell or a solicitation of an offer to buy any securities other than the
common stock offered  hereby.  This prospectus  supplement and the  accompanying
prospectus do not constitute an offer to sell or a  solicitation  of an offer to
buy our common stock in any  circumstances  in which an offer or solicitation is
unlawful.

INVESTING IN OUR COMMON STOCK INVOLVES A HIGH DEGREE OF RISK. SEE "RISK FACTORS"
BEGINNING ON PAGE 4 OF THE PROSPECTUS.

NEITHER  THE  SECURITIES  AND  EXCHANGE  COMMISSION  NOR  ANY  STATE  SECURITIES
COMMISSION HAS APPROVED OR DISAPPROVED OF THESE SECURITIES OR DETERMINED IF THIS
PROSPECTUS  IS TRUTHFUL OR  COMPLETE.  ANY  REPRESENTATION  TO THE CONTRARY IS A
CRIMINAL OFFENSE.

                              SELLING STOCKHOLDERS
                                PURCHASE WARRANT

On May 24,  2001,  we  issued a  Purchase  Warrant  to The Tail  Wind  Fund Ltd.
covering  659,501  shares of our common stock at an exercise price of $1.801 per
share, subject to adjustment. The Purchase Warrant was issued in connection with
a financing transaction pursuant to which The Tail Wind Fund Ltd. provided Fonar
with $4.5 million pursuant to a 4% Convertible  Debenture,  which in the absence
of a  conversion  by The Tail Wind Fund Ltd.,  Fonar had the option of paying in
stock or cash.  In  addition,  we issued to The Tail Wind Fund Ltd.  a  Callable
Warrant  covering  2,000,000  shares of our common stock at a variable  exercise
price.  Under the terms of the Callable  Warrant,  the exercise  price was to be
equal to the  average  closing  bid price of Fonar's  common  stock for the full
calendar  month  preceding  the date of exercise  subject to a maximum  exercise
price of $6.00  per  share and a  minimum  exercise  price of $2.00  per  share,
subject to  adjustment.  In order to induce The Tail Wind Fund Ltd.  to exercise
the Callable Warrant,  the exercise price of the Callable Warrant was amended in
June and August of 2002 to reduce the exercise  price thereof to $1.50 per share
and  $1.125  per share  respectively.  The Tail Wind  Fund  Ltd.  exercised  the
Callable Warrant in full, purchasing 1,000,000 shares at $1.50 per share in June
of 2002 and 1,000,000 in August at $1.125 per share.  As part of the  amendments
to the Callable Warrant, Fonar replaced the Callable Warrant with a new Callable
Warrant  having the same terms as the  original  Callable  Warrant  prior to the
amendments.   The  shares  underlying  the  Replacement  Callable  Warrant  were
registered  under a separate  registration  statement and are not covered by the
prospectus to which this  supplement  relates or the  registration  statement of
which it forms a part.

The Purchase  Warrant  contained  antidilution  provisions,  which  provided for
proportionate  adjustments  in the event of stock  splits,  stock  dividends and
reverse stock splits. In addition, the antidilution provisions provided that the
exercise  price  would be reduced if we issued  shares at lower  prices than the
warrant  exercise  price,  or less than the market  price for our common  stock.
Where the effective per share selling price in connection  with stock  issuances
by Fonar was less than the exercise  price,  the exercise price would be reduced
to such lower price.  The  Purchase  Warrant  also  provided  that the number of
underlying shares would be inversely  proportionately  increased or decreased in
the event of a change in the exercise  price,  such that the aggregate  purchase
price for the  underlying  warrant  shares upon full  exercise  of the  Purchase
Warrant would remain the same. In brief, a reduction of the exercise price would
increase the shares covered by the Purchase Warrant.

Since  issuing the Purchase  Warrant,  we have  registered  shares of our common
stock and issued them to suppliers of goods and services in lieu of cash.  Under
those  arrangements,  our  suppliers  would credit us for the net proceeds  they
received from the sale of the shares we issued to them. The market price for our
common stock was under the $1.801 exercise price of the Purchase Warrant at many
times  during  our  program  of  paying  vendors  with  stock  in lieu of  cash.
Consequently,  we were  credited by our  suppliers at rates below the $1.801 per
share  exercise  price under the Purchase  Warrant.  On April 28, 2004, The Tail
Wind  Fund  Ltd.  and Fonar  executed  an  amendment  to the  Purchase  Warrant,
providing  that the number of shares  underlying  the Warrant would be 1,000,000
shares and that the  exercise  price would be $0.79 per share.  Although the new
exercise price was determined in accordance  with the Warrant as a result of the
vendor  issuances  previously   described,   the  number  of  underlying  shares
represented  an  agreement  on the part of The Tail Wind Fund Ltd.  to accept an
adjustment  representing a lesser number of shares than would have resulted from
the strict  application  of the formula in the  Purchase  Warrant.  In addition,
among other things, the antidilution  provisions were amended to provide that if
Fonar were to sell shares below the Warrant  exercise price,  the exercise price
would not  automatically  be  reduced to the lower  price,  but that it would be
adjusted  based on the price and  number of shares  sold  relative  to the total
number of shares  outstanding  before  and after  the  sale.  In  addition,  the
provision that required an adjustment in the exercise price if Fonar sold shares
below the market price was eliminated.  These modifications were accepted by The
Tail Wind Fund Ltd. in  consideration  for, among other things,  the term of the
Purchase Warrant being extended three years to May 24, 2009.

None of the Purchase Warrant shares have been exercised.  We do not know or have
any indication from The Tail Wind Fund as to when they may exercise, in whole or
in part, the Purchase Warrant.

Also on April 28, 2004, the parties  amended the Replacement  Callable  Warrant,
which also contained  antidilution  provisions.  As a result of the antidilution
provisions,  The Tail Wind Fund Ltd.  exercised  the Callable  Warrant  prior to
April 28,  2004 in part to  purchase  400,000  shares at prices  under $2.00 per
share,  on one occasion  200,000 shares at the price of $1.41 per share and on a
second occasion 200,000 shares at $1.17 per share,  before the parties came to a
final  agreement  as to the effect of the vendor  sales.  The parties  agreed to
amend the Replacement Callable Warrant to fix the remaining number of underlying
shares at 3,000,000  shares of our common  stock and set the  exercise  price at
$1.00  per  share,  provided  that The Tail Wind  Fund  Ltd.  would  immediately
exercise the Replacement  Callable  Warrant in full. The Tail Wind Fund Ltd. has
exercised the Replacement Callable Warrant in full,  purchasing 3,000,000 shares
for $3,000,000. The shares remaining available for resale under the registration
statement  (and  the  prospectus  and  prospectus  supplement  which  are a part
thereof) and applicable to the Replacement Callable Warrant is 1,600,000 shares,
after giving effect to the 400,000 shares previously  purchased.  The balance of
the  3,000,00  shares,  or  1,400,000   shares,   issued  are  unregistered  and
"restricted  securities" within the meaning of Rule 144 under the Securities Act
of 1933,  as amended.  Fonar has agreed to file a  registration  statement  with
respect to these 1,400,000 shares, and to use its best efforts to have it become
effective  under the Securities Act of 1933, as amended.  The shares  underlying
the Replacement Callable Warrant are not covered by this prospectus  supplement,
the accompanying  prospectus,  or the registration statement of which they are a
part.

                                 USE OF PROCEEDS

We intend to use any net proceeds from the exercise of the Purchase  Warrant for
general  corporate  purposes,  including  working  capital  to fund  operations,
expenses and capital expenditures. As of the date of this prospectus supplement,
we cannot specify with certainty the particular uses for the net proceeds we may
receive upon the exercise of the Purchase Warrant.  Accordingly,  our management
will have broad  discretion  in the  application  of any net proceeds  received.
Pending  such uses,  we  currently  expect that we would invest the net proceeds
from the  exercise  of the  Callable  Warrant in  short-term,  interest-bearing,
investment grade securities.

                           MARKET FOR OUR COMMON STOCK

Our  common  stock is listed on the  NASDAQ  Small Cap  Market  under the symbol
"FONR".  On April 27,  2004 our closing  price of one share of common  stock was
$1.34.  As of  April  16,  2004,  we  had  94,555,637  shares  of  common  stock
outstanding.

                       WHERE YOU CAN FIND MORE INFORMATION

The SEC allows us to  "incorporate by reference"  information  that we file with
them, which means that we can disclose important information to you by referring
you  to  those  documents.  The  information  incorporated  by  reference  is an
important part of this prospectus supplement and the accompanying prospectus.

The  documents we  incorporate  by reference  and where you can find  additional
filings  and  information  concerning  Fonar  are set  forth  in the  prospectus
beginning on page 16.