Community Healthcare Network

Yajaira Rosa, LCSW

Licensed Clinical Social Worker

Yajaira Rosa, LCSW is a board-certified Behavioral Health Therapist. She treats patients at the South Bronx Health Center in the Bronx.

Yajaira completed her Bachelors of Science in Social Work at Nazareth College and her Masters of Social Work at Fordham University.

Yajaira is bi-lingual, fluent in the Spanish and English language. Yajaira is passionate and committed to helping you enhance personal growth and feel empowered. She uses a collaborative approach and creates a safe space for you to be honest about how you feel in an open and supportive environment. Yajaira specializes in evidence-based interventions for those suffering from depression, anxiety, trauma, interpersonal disputes, low self-esteem, grief, identity confusion, race/cultural stressors, socio-economic stressors, etc., which tailors to your needs. She will help you understand how the connection of your mind and body is essential to your healing. Her goal in session is to help you understand yourself better and provide you with the skills to navigate through stressful situations that led you to seek therapy today.

New patients, please call 866-246-8259 to make an appointment.

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Yajaira can help you with:

  • Trauma
  • Anxiety (feeling nervous or worried)
  • Family problems
  • Relationship problems
  • LGBTQ advocate

  • Self-esteem (having respect for yourself)
  • Loss of a loved one
  • Social phobia (feeling shy and nervous around others)
  • Taking your medicines the right way

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Anna Foster, PMHNP-BC

Psychiatric Nurse Practitioner

Anna Foster, PMHNP-BC is a recent graduate of Seattle University’s Psychiatric Nurse Practitioner program. Her nursing experience includes working in an inpatient hospital setting on serious mental illness and chemical dependency floors. Anna feels passionate about serving and treating vulnerable populations, and reducing barriers to accessing quality mental health care. She believes in working in a healthcare team to treat the whole person, and aspires to reduce the stigma around seeking mental health care. In her free time, she enjoys cooking, hiking, and spending time with her family and friends.

New patients, please call 866-246-8259 to make an appointment.

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Anna can help you with:

  • General mental health care
  • Depression
  • Anxiety (feeling nervous or worried)
  • Family problems
  • Relationship problems
  • LGBTQ problems
  • Self-esteem (having respect for yourself)

  • Loss of a loved one
  • Social phobia (feeling shy and nervous around others)
  • Taking your medicines the right way
  • Traumatic or painful events
  • Domestic abuse (abuse at home)
  • Help with addiction to heroin or pain medications with suboxone along with counseling, primary care and/or behavioral health treatment
  • Drug abuse

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Brianna Bouchez, MSN

Family Nurse Practitioner

Brianna Bouchez, FNP is a graduate of Yale University’s Family Nurse Practitioner program with a concentration in diabetes management. Her work as a registered nurse includes acute care pediatrics, adult intensive care, and adolescent psychiatric care. Brianna holds a faculty position in a vocational nursing program, where she teaches in the classroom and clinical settings. She is an endorsed instructor for the Department of Children and Family Services, where she instructs residential care facilities on the principles of safe medication administration. Volunteering in Haiti was a pivotal experience in shifting her focus to primary care. Brianna is passionate about patient education and a career in the community health setting.

New patients, please call 866-246-8259 to make an appointment.

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Brianna can help you with:

  • Yearly exams
  • Pediatrics (care for babies, children, and teens)
  • Treatment of general health problems
  • Pap smears (test for cervical cancer)
  • STI (infections you can get from sex) testing and treatment

  • Birth control
  • Reproductive health care
  • Health Screenings (tests that look for health problems before you have signs)
  • Care for long term health problems like diabetes, high blood pressure, asthma, and obesity
  • Referrals for special doctors

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Nelson Valenzuela, MSN, FNP-BC

Family Nurse Practitioner

Nelson Valenzuela, FNP-BC is a board-certified Family Nurse Practitioner treating patients at our Bronx and Manhattan Health Centers. He speaks English and Spanish.

Mr. Valenzuela completed his undergraduate degrees at SUNY Downstate School Of Nursing. He completed his Master’s in Nursing at NYU College of Nursing.

Mr. Valenzuela is an Army Veteran who has previously worked at NYU Langone Medical Center providing care to the general pediatric population for 5 years as a registered nurse prior to becoming a Family Nurse Practitioner.

New patients, please call 866-246-8259 to make an appointment.

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Nelson can help you with:

  • Yearly exams
  • Pediatrics (care for babies, children, and teens)
  • Treatment of general health problems
  • Pap smears (test for cervical cancer)
  • STI (infections you can get from sex) testing and treatment

  • Birth control
  • Health Screenings (tests that look for health problems before you have signs)
  • Care for long term health problems like diabetes, high blood pressure, asthma, and obesity
  • Referrals for special doctors

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Alison Martin, MSN, FNP-BC

Family Nurse Practitioner

Alison Martin, DNP, FNP-BC is a board-certified Family Nurse Practitioner treating patients at our Phoenix School Based Health Center in Washington Heights. She speaks English and Spanish.

Alison is dedicated to keeping adolescents healthy so they can take advantage of educational opportunities.

Dr. Martin completed a Bachelor of Arts degree in English at Trinity College and an Associates degree in Nursing at Norwalk Community College. She completed her Doctorate in Nursing at Quinnipiac University. She graduated from the CHN NP Fellowship Program.

She has previously worked at AmeriCares providing care to immigrants and the underinsured.

Poster presentation
CPHA 2015 Conference: Decreasing HIV/STD Risk Behaviors in Adolescent Latinos: Family Effect

New patients, please call 866-246-8259 to make an appointment.

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Alison can help you with:

  • Yearly exams
  • Pediatrics (care for babies, children, and teens)
  • Treatment of general health problems
  • Pap smears (test for cervical cancer)
  • STI (infections you can get from sex) testing and treatment

  • Birth control
  • Reproductive health care
  • Health Screenings (tests that look for health problems before you have signs)
  • Care for long term health problems like diabetes, high blood pressure, asthma, and obesity
  • Referrals for special doctors

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Kelly Horn, DO

Medical Director

Kelly Horn, DO is a board certified Family Physician treating patients of all ages. You can see her at CHN Jamaica in Queens.

Dr. Horn completed her undergraduate degree at SUNY Geneseo in Geneseo, NY, and her medical school at New York College of Osteopathic Medicine and medical residency in Family Medicine at Jamaica Hospital Medical Center.

Dr. Horn provides full-spectrum family medicine to patients of all ages. She has a special interest in women’s health, preventative care, and transgender health. Dr. Horn speaks conversational Spanish.

New patients, please call 866-246-8259 to make an appointment.

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Dr. Horn can help you with:

  • Yearly exams
  • Pediatrics (care for babies, children, and teens) for patients newborn and up
  • Prenatal Care (care during pregnancy)
  • Treatment of general health problems
  • Pap smears (test for cervical cancer)
  • Gender affirming care, including hormones

  • STI (infections you can get from sex) testing and treatment
  • Birth control, including Nexplanon (long-term birth control) and IUDs
  • Reproductive health care
  • Health Screenings (tests that look for health problems before you have signs)
  • Care for long term health problems like diabetes, high blood pressure, asthma, and obesity
  • Referrals for special doctors

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May Lemon, RDN, CDN, CLC

Nutritionist

May Lemon, RDN, CDN, CLC is a board-certified Nutritionist. You can see her at Jamaica Health Center in Queens.  She speaks English, Spanish, and Cantonese.

May Lemon got her Nutrition degree at Queens College CUNY in New York City and her Business degree in Finance at Baruch College CUNY in New York City.

New patients, please call 866-246-8259 to make an appointment.

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May Lemon can help you with:

  • Breastfeeding
  • Diabetes
  • Losing or gaining weight
  • Getting ready for weight loss surgery
  • Grocery store tours

  • Nutrition help at home
  • Eating disorders
  • Stomach pain from food
  • Group classes

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Melissa Olson, RD, CDN

Nutritionist

Melissa Olson, RD is a board-certified Nutritionist. You can see her on Thursdays, 9 a.m. to 5 p.m. at Crown Heights Health Center in Brooklyn. She speaks English and some Spanish.

Melissa got her nutrition degree at Washington State University in Pullman, WA.

New patients, please call 866-246-8259 to make an appointment.

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Melissa can help you with:

  • Breastfeeding
  • Diabetes
  • Losing or gaining weight
  • Getting ready for weight loss surgery

  • Grocery store tours
  • Nutrition help at home
  • Stomach pain from food
  • Group classes

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Anna Rickards, MS, RDN/CDN, CLC

Nutritionist

Anna Rickards, MS, RDN/CDN, CLC is a board-certified Nutritionist. You can see her Monday-Friday at Tremont Health Center in the Bronx. She speaks English and Spanish.

Anna got her Nutrition degree at Teachers College, Columbia University in New York City, a BA in biology from Oberlin College in Ohio, and is a Certified Lactation Counselor.

New patients, please call 866-246-8259 to make an appointment.

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Anna can help you with:

  • Breastfeeding
  • Infant feeding
  • Diabetes
  • Losing or gaining weight
  • Getting ready for weight loss surgery
  • Grocery store tours

  • Nutrition help at home
  • Stomach pain from food
  • Group classes
  • Constipation
  • Picky Eaters
  • Nutrition for kids

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Rosemary Olivera, CNM

Rosemary Olivera, CNM is a board-certified in midwifery treating patients in Queens. She is certified by the Pediatric Nursing Certification Board in Pediatric Primary Care.

New patients, please call 866-246-8259 to make an appointment.

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Ms. Olivera focuses on:

  • Prenatal Care
  • Family Planning
  • Birth Control including IUDs and Nexplanons

  • Pap smears (test for cervical cancer)
  • STI (infections you can get from sex) testing and treatment

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