International Board Certified Lactation  Consultant

"Kate was extremely knowledgable, professional, and helpful. She shared her wealth of information and experience with me when I needed it most. Her techniques and tactics were comprehensive and very helpful - I continue to use them. I highly recommend her expertise as an IBCLC."  LD

I can help.

"I wouldn’t be breastfeeding at all if it wasn’t for Kate’s careful guidance and support."  TT

"We are very grateful for how much she has helped our family and would happily recommend her to anyone who is having a child or interested in learning about breastfeeding. Thank you Kate!"  JW

Speaker at LCinPP 2020
Speaker at LCinPP 2020

My family

Speaker at LCinPP 2020
Speaker at LCinPP 2020

Kate DiMarco Ruck IBCLC


Kate DiMarco Ruck BA IBCLC is an International Board Certified Lactation Consultant providing breastfeeding and chestfeeding support to families in the New York Metro Area.

Kate is a warm, compassionate, and knowledgeable IBCLC trained in the Oral Habilitation of the Breastfeeding Dyad.  She teaches prenatal lactation classes and has extensive experience working with parents struggling with: 

  • Low milk supply

  • Pain/damage to nipples

  • Positioning

  • Twins/multiples

  • Latch issues

  • Slow weight gain

  • Oversupply

  • Gassy/fussy/colic

  • Food intolerances

  • Blocked ducts/mastitis

  • IGT/hypoplasia

  • Tongue tie, Tethered Oral Tissues, Torticollis, and other structural issues

  • Breastfeeding after breast surgery/reduction/cancer

  • Relactation

  • Parents with disabilities

  • Infants with disabilities

  • Bottle feeding & 1x1 formula information 

  • Breast fed babies struggling to take bottles

  • Return-to-work

  • Baby Led Weaning & Transitioning to Solid Food
       ...and other lactation challenges

Kate works closely with parents to develop a comprehensive and supportive lactation plan.


Kate has studied and works with some of the leaders in the lactation community. She has volunteered internationally within refugee communities, providing necessary breastfeeding support and aid during emergency situations.


She is an active participant in the local, national and international lactation community.  Kate currently serves on the board of NYLCA as education/events coordinator and marketing/outreach director.   Kate is continually attending professional conferences and trainings to keep up with the evolving field of human lactation in order to provide the best possible care for her clients.



Breast/Chest Feeding Consultation

Initial Visit: 1.5 – 2 hours

In Office

In Home  

Includes an assessment of parent and baby, detailed health history, observing a feeding, pre and post feed weight and a comprehensive care plan.

This service is also available for Bottle Feeding Families.  If your breastfed baby struggles to accept a bottle, an initial home visit can help get you on your way to bottle feeding success.

I am available for post-visit communication for 1 week after the visit.

Follow Up Visits:
1.5 hours

In Office

In Home  

In-Office Weight Check

30 minutes  

For established clients only.  This is a brief appointment to confirm that your feeding planning is on track and that the baby is gaining weight appropriately.

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Prenatal/Pre-adoptive Consult:

1.5 hours

In Office

At Home


Lactation Education- you will gain a greater understanding of how breastfeeding works.

Review the full health history for the anticipated nursing parent with a comprehensive plan for baby’s arrival. Prenatal/Pre-adoptive clients receive $50 discount on post partum Breast/Chest Feeding Consultation.

In Zone Neighborhoods


Boerum Hill                   Cobble Hill

Carroll Gardens            Downtown Brooklyn

Brooklyn Heights          Gowanus

Red Hook                       Columbia Waterfront

Dumbo                           Navy Yard

Flatbush                         Park Slope

Prospect Heights           Prospect Park South

South Slope                  Windsor Terrace

Sunset Park                   Ditmas Park

Borough Park               Bay Ridge

Bedford Stuyvesant      Clinton Hill  

Fort Greene                   Brownsville

Crown Heights              

I am pleased to be able to provide Virtual Lactation Visits to anyone in the world!  Click Schedule Consult to view fees and make an appointment.


In-Person Office Visits in Boerum Hill, Brooklyn  are being offered on a case by case basis- please use the contact form at the bottom of this page to inquire.

Out of Zone Neighborhoods

Visits to these locations incur a $50 travel charge, this is not reimbursable by insurance.  When booking online, please be sure to include the travel fee option.





and other areas of Brooklyn not listed in zone



Long Island City          



and other neighborhoods in Queens



UWS, UES, Central Park and South

Phone Consultations

30 minutes 

45 minutes 

60 minutes 

For Established clients only.  Want to check in after your visit and require an in depth conversation?  Want to talk Baby Led Weaning at 6 months old?  Want to discuss your plan to go back to work?  Are you getting ready to wean, but worried about plugged ducts or emotional ramifications?


Let's make an appointment to talk on the phone.

Payment Info:

Payment by:
credit card (For virtual visits, when in person visits are available again, cash and check are an option)
HSA FSA eligible

All online bookings require a credit card to book your visit.  Your visit is not confirmed until you have completed your health history form and signed consents.

Please note:  Once you book this appointment, if you need to cancel or reschedule, you must do so with 24 hours notice or full fee will be charged.

Insurance Info:
I am an Out-Of-Network provider.  Payment is due at time of service.  I will provide a superbill for you to submit to your insurance company for reimbursement (minus travel fee for Out of Zone).  Lactation support is mandated by The Affordable Care Act.  Check with your insurance company to request pre-authorization to see an out-of-network provider.  Here's information on why most IBCLCs are out-of-network, and how to get reimbursed for your visit.


WIC. Medicaid, First Responders, and other families in need, please reach out regarding sliding scale.


I love working with families with multiple births.  Please add $50/additional baby to initial visit charge as visits with many babies include thorough assessment and care plan for each individual child



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Tel: 347-974-0872