Filing pursuant to Rule 424(b) (3)
                                           Registration Statement No. 333-100677


                PROSPECTUS SUPPLEMENT NO. 1 DATED APRIL 30, 2004

                     (TO PROSPECTUS DATED NOVEMBER 1, 2002)

                                1,600,000 SHARES

FONAR CORPORATION

                                  COMMON STOCK

This prospectus  supplement  relates to a change in the exercise price under the
Callable  Warrant  previously  issued by us to The Tail Wind Fund Ltd.  covering
2,000,000  shares of our common stock on or about August 30, 2003.  In addition,
the number of shares  underlying the Callable  Warrant has been  increased,  but
these  new  shares  are  not  covered  by  this  prospectus  supplement  or  the
registration  statement to which it relates.  See "Callable Warrant" below for a
more detailed description of these changes and the Callable 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 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
                                CALLABLE WARRANT

On August  30,  2002,  we issued a  Callable  Warrant to The Tail Wind Fund Ltd.
covering  2,000,000 shares of our common stock.  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.

The Callable  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 exercise
prices  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. The Callable
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 Callable  Warrant  would remain the same. In brief,  a
reduction  of the  exercise  price  would  increase  the  shares  covered by the
Callable Warrant.

Since  issuing the Callable  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 $2.00 minimum  exercise price of the Callable 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 $2.00 per share,
the minimum  exercise  price under the Callable  Warrant prior to adjustment for
such stock issuances.

As a result,  The Tail Wind Fund Ltd.  exercised the Callable Warrant 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,  prior to the parties coming to a final  agreement as to the
effect of the vendor sales.

On April 28, 2004,  The Tail Wind Fund Ltd.  and Fonar  executed an amendment to
the Callable  Warrant,  providing that the remaining number of shares underlying
the  Warrant  would be  3,000,000  shares  (not  including  the  400,000  shares
previously purchased), that the exercise price would be fixed at $1.00 per share
and that,  in return,  The Tail Wind Fund Ltd.  would  immediately  exercise the
Callable  Warrant in full.  The Tail Wind Fund Ltd. has  exercised  the Callable
Warrant in full, purchasing 3,000,000 shares for $3,000,000.

The  number of shares  remaining  available  for resale  under the  registration
statement  of which  this  prospectus  supplement  (together  with the  original
prospectus)  forms  a part  and  applicable  to the  Callable  Warrant  is  only
1,600,000  shares,   after  giving  effect  to  the  400,000  shares  previously
purchased.  Therefore, the balance of the 3,000,000 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.

On April 28, 2004,  the parties also  amended the  Purchase  Warrant  originally
issued  to The Tail  Wind  Fund  Ltd.  on May 24,  2001,  which  also  contained
antidilution  provisions,  to increase the number of shares covered thereby from
659,501 shares to 1,000,000  shares and to reduce the exercise price from $1.801
per share to $0.79 per share.  The Purchase  Warrant was issued to The Tail Wind
Fund Ltd. in connection with the issuance of Fonar's 4% Convertible Debenture on
May 24, 2001. The original terms of the Purchase Warrant  provided,  among other
things,  that the exercise  price would be reduced to the lowest  effective  per
share selling price in connection  with stock  issuances by Fonar,  along with a
proportional  increase in the number of shares underlying the Warrant.  Although
the exercise  price was reduced as a result of the vendor  issuances  previously
described in accordance  with the terms of the Warrant,  The Tail Wind Fund Ltd.
agreed to accept an adjustment  representing  a lesser number of shares to which
it would have been  entitled if the formula  contained in the original  terms of
the Purchase Warrant were strictly  followed,  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 Ltd. as to when they may exercise,
in whole or in part, the Purchase  Warrant.  The shares  underlying the Purchase
Warrant  are  not  covered  by  this  prospectus  supplement,  the  accompanying
prospectus,   or  the  registration  statement  relating  to  them.  The  shares
underlying  the  Purchase  Warrant are  covered by  Registration  Statement  No.
333-63782 and the prospectus and prospectus supplements issued thereunder.

                                 USE OF PROCEEDS

We intend to use the net proceeds from the exercise of the Callable  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
have  received  upon the  exercise of the  Callable  Warrant.  Accordingly,  our
management  will have broad  discretion in the  application  of the net proceeds
received.  Pending  such  uses,  we intend to 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.