UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                       -----------------------------------

                                  SCHEDULE 13D
                                 (Rule 13d-101)

  INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULE 13d-1(a)
             AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2(a)
                               (Amendment No. 4)*

                             LIFELINE SYSTEMS, INC.
                       -----------------------------------
                                (Name of Issuer)

                          Common Stock, $.02 par value
                       -----------------------------------
                         (Title of Class of Securities)

                                   532192 10 1
                       -----------------------------------
                                 (CUSIP Number)

                              Ms. Sheryl B. Sigrist
                             Lifeline Systems, Inc.
                    111 Lawrence Street, Framingham, MA 01702
                                 (508) 988-1000
                       -----------------------------------
       Name, Address and Telephone Number of Person Authorized to Receive
                           Notices and Communications

                               September 11, 2002
                       -----------------------------------
             (Date of Event Which Requires Filing of this Statement)


     If the filing person has previously filed a statement on Schedule 13G to
report the acquisition which is the subject of this Schedule 13D, and is filing
this Schedule because of Rule 13d-1(e), 13d-1(f) or 13d-1(g), check the
following box. [_]





     *The remainder of this cover page shall be filled out for a reporting
person's initial filing on this form with respect to the subject class of
securities, and for any subsequent amendment containing information which would
alter the disclosures provided in a prior cover page.

     The information required in the remainder of this cover page shall not be
deemed to be "filed" for the purpose of Section 18 of the Securities Exchange
Act of 1934 (the "Act") or otherwise subject to the liabilities of that section
of the Act but shall be subject to all other provisions of the Act (however, see
the Notes).

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CUSIP No. 532192 10 1                13D                    Page 1 of 5 Pages
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1.  NAMES OF REPORTING PERSONS
    I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

    Ronald Feinstein
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2.  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP              (a) [_]
                                                                  (b) [x]
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3.  SEC USE ONLY

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4.  SOURCE OF FUNDS
    OO
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5.  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT  [_]
    to item 2(d) or 2(e)
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6.  CITIZENSHIP OR PLACE OF ORGANIZATION
    United States
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    NUMBER OF    7.   SOLE VOTING POWER
     SHARES           257,817 (beneficial interest disclaimed in 16,000)
                 ---------------------------------------------------------------
  BENEFICIALLY   8.   SHARED VOTING POWER
    OWNED BY          0
                 ---------------------------------------------------------------
      EACH       9.   SOLE DISPOSITIVE POWER
    REPORTING         257,817 (beneficial interest disclaimed in 16,000)
                 ---------------------------------------------------------------
   PERSON WITH   10.  SHARED DISPOSITIVE POWER
                      0
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11.  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
     241,817
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12.  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
     CERTAIN SHARES                                                   [X]
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13.  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
     3.8%
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14.  TYPE OF REPORTING PERSON
     IN
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                         AMENDMENT NO. 4 TO SCHEDULE 13D

Item 1.   Security and Issuer.

     This Schedule 13D relates to the common stock, $.02 par value per share
(the "Common Stock") of Lifeline Systems, Inc., a Massachusetts corporation
(the "Company"). The principal executive offices of the Company are located at
111 Lawrence Street, Framingham, MA 01702-8156.

Item 2.   Identity and Background.

          (a)  Ronald Feinstein

          (b)  c/o Lifeline Systems, Inc., 111 Lawrence Street, Framingham, MA
               01702-8156

          (c)  President and Chief Executive Officer of the Company, 111
               Lawrence Street, Framingham, MA 01702-8156

          (d)  None

          (e)  None

          (f)  United States

Item 3.   Source and Amount of Funds or Other Consideration.

     N/A.

Item 4.   Purpose of the Transaction.

     This Schedule 13D Amendment relates to sales of an aggregate 145,611 shares
of the Company's Common Stock which were transacted in 26 trades between
November 5, 2001 and September 11, 2002 at prices ranging from $22.25 to $28.20.
Mr. Feinstein has sold these shares to obtain funds for personal use.
Mr. Feinstein filed Form 4's with the Securities and Exchange Commission for
these sales as required under Section 16 of the Securities and Exchange Act of
1934.

Item 5.   Interest in Securities of the Issuer.

          (a)  As of September 11, 2002 Mr. Feinstein had sole voting and
               investment power as to 257,817 shares of Common Stock (except as
               this amount may be limited by the explanations contained in the
               following paragraphs), which represent 3.8% of the Common Stock
               outstanding, based on 6,460,311 shares of Common Stock issued and
               outstanding as of August 31, 2002.

               1.   86,740 shares are owned directly by Mr. Feinstein. 143,595
                    shares are subject to stock options held by Mr. Feinstein
                    that are currently exercisable or exercisable within 60 days
                    after September 11, 2002. 11,482 shares are beneficially
                    owned by Mr. Feinstein through his interest in the Company's


                                      - 4 -



                    Employees Savings and Investment Plan (the "401(k) Plan").
                    Mr. Feinstein possesses sole voting and dispositive power
                    with respect to these shares.

               2.   16,000 shares are held by Mr. Feinstein's children. Mr.
                    Feinstein has sole voting and dispositive power over such
                    shares, but he disclaims any beneficial interest with
                    respect to such shares.

          (b)  See Item 5(a) above.

          (c)  Mr. Feinstein sold a total of 33,794 shares from August 26, 2002
               through September 11, 2002 at prices ranging from $22.25 to
               $23.37.

          (d)  Mr. Feinstein's children own 16,000 shares of Common Stock and
               have the right to receive any dividends that may be declared and
               any proceeds from the sale of such shares.

          (e)  Mr. Feinstein ceased to be the beneficial owner of more than 5%
               of the Common Stock outstanding on March 12, 2002.

Item 6.   Contracts, Arrangements, Understandings or Relationships with Respect
          to Securities of the Issuer.

     Pursuant to the terms of an employment agreement, as amended, Ronald
Feinstein became President and Chief Executive Officer of the Company on January
1, 1993. Upon termination by the Company of his employment as Chief Executive
Officer and his membership on the Board of Directors, other than for cause,
Mr. Feinstein will continue to receive his salary for 12 months. In the event of
a change in control of the Company following which Mr. Feinstein no longer
serves as the Chief Executive Officer of the Company within the Boston,
Massachusetts metropolitan area or as a director of the Company, Mr. Feinstein
may terminate the employment agreement and be paid three times his salary and
bonus for the preceding fiscal year (subject to downward adjustment for any
excess parachute payment as defined in Section 280G of the Internal Revenue Code
of 1986, as amended).

     Pursuant to the terms of Mr. Feinstein's employment agreement, effective
2002, Mr. Feinstein is eligible to receive a bonus equal to 60% of his base
salary if the Company achieves the annual profit performance plan goals adopted
by the Board of Directors and greater than 60% of his base salary if the Company
exceeds such goals.

     In August 1999, the Company loaned $300,000 to Mr. Feinstein pursuant to a
secured promissory note (the "Feinstein Note") for the exercise of a stock
option which was to expire. The Feinstein Note, which bore interest at a rate of
6.77% per annum, payable annually in arrears, was due August 23, 2004 and was
secured by a pledge of 16,552 shares of Common Stock of the Company. Mr.
Feinstein had been granted the right to put 70,459 shares (representing the net
number of shares issued to Mr. Feinstein with the proceeds of the loan, after
withholding for taxes) back to the Company at a price equal to $16.3125 per
share at any time during the 18-month period following April 30, 2001.


                                      - 5 -



     In April 2000, the Company loaned $250,000 to Mr. Feinstein pursuant to a
secured promissory note (the "2000 Note"). The 2000 Note, which bore interest at
a rate of 6.94% payable annually in arrears, was due April 5, 2005 and was
secured by a pledge of 25,641 shares of Common Stock of the Company.

     In order to eliminate any potential compensation expense exposure to the
Company as a result of the aforementioned put right, Mr. Feinstein sold all
shares covered by this agreement in the open market as of March 2002, thereby
eliminating any right of Mr. Feinstein to put shares back the Company. On July
15, 2002, the Mr. Feinstein repaid both the Feinstein Note and the 2000 Note in
full.

Item 7.   Material to be Filed as Exhibits.

     The following is a list of exhibits to this Amendment No. 4 to Schedule
13D. The following exhibits have, as indicated below, previously been filed by
and on behalf of the Company with the Securities and Exchange Commission under
the Securities and Exchange Act of 1934 and are referred to and incorporated
herein by reference to such filings.

Exhibit 1.     Amended Employment and Noncompetition Agreement between
               Mr. Feinstein and the Company, dated August 27, 1992.

               (Filed as exhibit 10.36 to the Company's 10-K for the year ended
               December 31, 1992)

Exhibit 2.     Non-Statutory Stock Option Agreement between Mr. Feinstein and
               the Company, dated February 11, 1994.

               (Filed as exhibit 10.46 to the Company's 10-K for the year ended
               December 31, 1993)

Exhibit 3.     Amended Employment Agreement between Mr. Feinstein and the
               Company, dated June 14, 1996.

               (Filed as exhibit 10.60 to the Company's 10-Q for the quarter
               ended June 30, 1996)

Exhibit 4.     Letter Agreement between Mr. Feinstein and the Company, dated
               March 4, 1994.

               (Filed as exhibit 10.45 to the Company's 10-K for the year ended
               December 31, 1993)

Exhibit 5.     Secured Promissory Note between Mr. Feinstein and the Company,
               dated August 23, 1999.

               (Filed as exhibit 10.63 to the Company's 10-Q for the quarter
               ended September 30, 1999)


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Exhibit 6.     Secured Promissory Note between Mr. Feinstein and the Company,
               dated April 5, 2000.

               (Filed as exhibit 10.69 to the Company's 10-Q for the quarter
               ended March 31, 2000)

Exhibit 7.     Security and Pledge Agreement between Mr. Feinstein and the
               Company, dated April 5, 2000.

               (Filed as exhibit 10.70 to the Company's 10-Q for the quarter
               ended March 31, 2000)





                                    SIGNATURE

     After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true, complete and
correct.

                                             /s/ Ronald Feinstein
                                             -----------------------------
                                             Ronald Feinstein

Dated:  September 18, 2002

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