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

FORM N-Q

QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED
MANAGEMENT INVESTMENT COMPANIES

Investment Company Act file number 811- 5615

John Hancock Patriot Premium Dividend Fund I
(Exact name of registrant as specified in charter)

601 Congress Street, Boston, Massachusetts 02210
(Address of principal executive offices) (Zip code)

Alfred E. Ouellette, Senior Counsel & Assistant Secretary

601 Congress Street

Boston, Massachusetts 02210

(Name and address of agent for service)

Registrant's telephone number, including area code: 617-663-4324  
   
Date of fiscal year end:  September 30 
     
Date of reporting period:  December 31, 2006 

ITEM 1. SCHEDULE OF INVESTMENTS




John Hancock
Patriot Premium Dividend Fund I
Securities owned by the Fund on
December 31, 2006 (unaudited)

Issuer  Shares  Value 
Common stocks 37.73%    $85,303,318 

(Cost $67,645,755)     
 
Electric Utilities 2.41%    5,455,220 

Pinnacle West Capital Corp.  37,000  1,875,530 
Progress Energy, Inc.  72,500  3,558,300 
Progress Energy, Inc. (Contingent Value     
Obligation) (B)(I)  69,000  21,390 
 
Gas Utilities 2.17%    4,909,507 

National Fuel Gas Co.  59,850  2,306,619 
Peoples Energy Corp.  58,400  2,602,888 
 
Integrated Telecommunication Services 2.09%    4,730,781 

AT&T, Inc.  97,850  3,498,137 
Verizon Communications, Inc.  33,100  1,232,644 
 
Multi-Utilities 30.10%    68,045,394 

Alliant Energy Corp.  144,380  5,453,233 
Ameren Corp.  45,900  2,466,207 
CH Energy Group, Inc.  151,050  7,975,440 
Consolidated Edison, Inc.  32,000  1,538,240 
Dominion Resources, Inc.  64,300  5,390,912 
DTE Energy Co.  126,000  6,099,660 
Duke Energy Corp.  84,650  2,811,226 
Energy East Corp.  257,000  6,373,600 
KeySpan Corp.  158,250  6,516,735 
NiSource, Inc.  87,450  2,107,545 
NSTAR  350,000  12,026,000 
SCANA Corp.  21,700  881,454 
TECO Energy, Inc.  173,000  2,980,790 
WPS Resources Corp.  30,400  1,642,512 
Xcel Energy, Inc.  164,000  3,781,840 
 
Oil & Gas Storage & Transportation 0.94%    2,115,000 

Kinder Morgan, Inc.  20,000  2,115,000 
 
Publishing 0.02%    47,416 

Idearc, Inc. (I)  1,655  47,416 

Page 1


John Hancock
Patriot Premium Dividend Fund I
Securities owned by the Fund on
December 31, 2006 (unaudited)

    Credit     
Issuer, description    rating (A)  Shares  Value 
Preferred stocks 60.99%        $137,883,467 

(Cost $133,700,015)         
 
Agricultural Products 1.25%        2,826,250 

Ocean Spray Cranberries, Inc., 6.25%, Ser A (S)  BB+  35,000  2,826,250 
 
Consumer Finance 0.54%      1,227,300 

CIT Group, Inc., 6.35%, Ser A  BBB+  20,000  521,400 
SLM Corp., 6.97%, Ser A  BBB+  13,000  705,900 
 
Diversified Banks 0.69%      1,557,530 

HSBC Holdings Plc, 6.20%, Ser A (United Kingdom)  A  25,000  635,000 
Royal Bank of Scotland Group Plc, 5.75%, Ser L (United       
Kingdom)    A  38,200  922,530 
 
Electric Utilities 25.38%      57,378,414 

Alabama Power Co., 5.20%  BBB+  240,000  5,760,000 
Boston Edison Co., 4.25%  A-  58,152  4,608,546 
Boston Edison Co., 4.78%  A-  25,558  2,281,052 
Duquesne Light Co., 6.50%  BB+  105,900  5,242,050 
Entergy Arkansas, Inc., 6.45%  BB+  50,000  1,259,375 
Entergy Mississippi, Inc., 6.25%  BB+  150,000  3,806,250 
FPC Capital I, 7.10%, Ser A  BB+  162,300  4,093,206 
Georgia Power Co., 6.00%, Ser R  A  213,800  5,291,550 
Great Plains Energy, Inc., 4.50%  BB+  12,510  1,041,458 
Great Plains Energy, Inc., 8.00%, Conv  BBB-  99,900  2,497,500 
HECO Capital Trust III, 6.50%  BBB-  107,900  2,726,633 
Interstate Power & Light Co., 7.10%, Ser C  BBB-  25,000  641,500 
Interstate Power & Light Co., 8.375%, Ser B  Baa3  25,000  805,470 
PPL Electric Utilities Corp., 4.60%  BBB  3,917  333,679 
PPL Electric Utilities Corp., 6.25%, Depositary Shares  BBB  200,000  5,218,760 
PPL Energy Supply, LLC, 7.00%  BBB  70,000  1,822,100 
Public Service Electric & Gas Co., 4.30%, Ser C  BB+  8,280  695,520 
Public Service Electric & Gas Co., 6.92%  BB+  26,800  2,784,689 
Southern California Edison Co., 6.00%, Ser C  BBB-  18,000  1,848,938 
Southern California Edison Co., 6.125%  BBB-  35,000  3,561,250 
Virginia Electric & Power Co., $7.05  BB+  10,200  1,058,888 
 
Gas Utilities 2.27%        5,128,050 

Southern Union Co., 7.55%, Ser A  BB  201,100  5,128,050 
 
Integrated Telecommunication Services 1.17%      2,645,775 

Telephone & Data Systems, Inc., 6.625%  BBB  106,900  2,645,775 

Page 2


John Hancock
Patriot Premium Dividend Fund I
Securities owned by the Fund on
December 31, 2006 (unaudited)

Investment Banking & Brokerage 7.71%        17,422,787 

Bear Stearns Cos., Inc. (The), 5.49%, Depositary         
Shares, Ser G    BBB+  25,200  1,209,600 
Bear Stearns Cos., Inc. (The), 5.72%, Depositary         
Shares, Ser F    BBB+  102,460  5,143,492 
Goldman Sachs Group, Inc., 6.20%, Ser B    A  20,000  522,400 
Lehman Brothers Holdings, Inc., 5.67%, Depositary         
Shares, Ser D    A-  102,700  5,222,295 
Lehman Brothers Holdings, Inc., 5.94%, Depositary         
Shares, Ser C    A-  90,400  4,542,600 
Merrill Lynch & Co., Inc., 6.375%, Depositary Shares,         
Ser 3    A  30,000  782,400 
 
Life & Health Insurance 1.34%        3,025,650 

MetLife, Inc., 6.50%, Ser B    BBB  115,000  3,025,650 
 
Multi-Utilities 10.23%        23,127,919 

Baltimore Gas & Electric Co., 6.99%, Ser 1995    Ba1  34,000  3,530,689 
BGE Capital Trust II, 6.20%    BBB-  205,000  5,073,750 
PNM Resources, Inc., 6.75%, Conv    BBB-  98,049  5,180,909 
PSEG Funding Trust II, 8.75%    BB+  71,400  1,829,982 
South Carolina Electric & Gas Co., 6.52%    Baa1  55,000  5,518,909 
Xcel Energy, Inc., $4.11, Ser D    BB+  24,921  1,993,680 
 
Oil & Gas Exploration & Production 5.75%        13,005,017 

Apache Corp., 5.68%, Depositary Shares, Ser B    BBB  26,700  2,662,492 
Devon Energy Corp., 6.49%, Ser A    BB+  50,000  5,040,625 
Nexen, Inc., 7.35% (Canada)    BB+  205,500  5,301,900 
 
Regional Banks 3.10%        7,001,375 

Bank of America Corp., 6.204%, Despositary Shares, Ser D    A  170,000  4,403,000 
HSBC USA, Inc., $2.8575 (G)    AA-  50,700  2,598,375 
 
Thrifts & Mortgage Finance 1.11%        2,507,400 

Sovereign Bancorp, Inc., 7.30%, Depositary Shares, Ser C    BB+  90,000  2,507,400 
 
Wireless Telecommunication Services 0.45%        1,030,000 

United States Cellular Corp., 7.50%    BBB  40,000  1,030,000 
 
  Interest    Par value   
Issuer, description, maturity date  rate    (000)  Value 
Short-term investments 1.28%        $2,889,585 

(Cost $2,889,585)         
 
Consumer Finance 1.28%        2,889,585 

Chevron Texaco Corp., Due 1/02/2007  5.170%    $2,890  2,889,585 
 
Total investments (Cost $204,235,355) 100.00%       $226,076,370 


Page 3


John Hancock
Patriot Premium Dividend Fund I
Footnotes to Schedule of Investments
December 31, 2006 (unaudited)

(A) Credit ratings are unaudited and are rated by Moody's Investors Service where Standard & Poor's ratings are not available unless indicated otherwise.

(B) This security is fair valued in good faith under procedures established by the Board of Trustees. These securities amounted to $21,390 or 0.01% of the Fund's total investments as of December 31, 2006.

(G) Security rated internally by John Hancock Advisers, LLC.

(I) Non-income-producing security.

(S) This security is exempt from registration under Rule 144A of the Securities Act of 1933. Such security may be resold, normally to qualified institutional buyers, in transactions exempt from registration. Rule 144A securities amounted to $2,826,250 or 1.25% of the Fund's net assets as of December 31, 2006.

Parenthetical disclosure of a foreign country in the security description represents country of a foreign issuer; however, security is U.S. dollar-denominated.

The percentage shown for each investment category is the total value of that category as a percentage of the total investments of the Fund.

The cost of investments owned on December 31, 2006, including short-term investments, was $204,235,355. Gross unrealized appreciation and depreciation of investments aggregated $24,666,067 and $2,825,052, respectively, resulting in net unrealized appreciation of $21,841,015.

Footnotes to Schedule of Investments - Page 1




ITEM 2. CONTROLS AND PROCEDURES.

(a) Based upon their evaluation of the registrant's disclosure controls and procedures as conducted within 90 days of the filing date of this Form N-Q, the registrant's principal executive officer and principal accounting officer have concluded that those disclosure controls and procedures provide reasonable assurance that the material information required to be disclosed by the registrant on this report is recorded, processed, summarized and reported within the time periods specified in the Securities and Exchange Commission's rules and forms.

(b) There were no changes in the registrant's internal control over financial reporting that occurred during the registrant's last fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting.

ITEM 3. EXHIBITS.

Separate certifications for the registrant's principal executive officer and principal accounting officer, as required by Rule 30a-2(a) under the Investment Company Act of 1940, are attached.


SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

John Hancock Patriot Premium Dividend Fund I

By: /s/ Keith F. Hartstein
-------------------------------------
Keith F. Hartstein
President and Chief Executive Officer

Date: February 27, 2007

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

By: /s/ Keith F. Hartstein
-------------------------------------
Keith F. Hartstein
President and Chief Executive Officer

Date: February 27, 2007

By: /s/ John G. Vrysen
-------------------------------------
John G. Vrysen
Chief Financial Officer

Date: February 27, 2007