AG
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Gerren, Obstetrician / Gynecologist (OBGYN) in Brooklyn, NY?
Dr. Allison Gerren, MD is an Obstetrician / Gynecologist (OBGYN), who primarily practices in Brooklyn, NY. Dr. Gerren is fluent in English, and is currently seeing new patients. To book an appointment or to confirm insurance options, please call Dr. Gerren’s office at (718) 270-2057.
What languages does Dr. Gerren speak?
Dr. Gerren and their clinical team can communicate with patients in the following languages:
English
What conditions does an Obstetrician / Gynecologist (OBGYN) like Dr. Gerren typically treat?
As an Obstetrician / Gynecologist (OBGYN), Dr. Gerren diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Gerren. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly. Learn more about our claims-based healthcare methodology.
Also known as:
- False Labor
- Childbirth
- Braxton Hicks Contractions
- Practice Contractions
- Prodromal Labor
ICD-10 Codes:
- O471: False labor at or after 37 completed weeks of gestation
- O4703: False labor before 37 completed weeks of gestation, third trimester
Also known as:
- Reduced Fetal Movement
- Baby Moving Less
- Fetal Hypoactivity
- Decreased Baby Kicks
ICD-10 Codes:
- O368130: Decreased fetal movements, third trimester, not applicable or unspecified
Also known as:
- Observation for Ruled Out Amniotic Sac Problems
- Amniotic Fluid Monitoring
- Suspected Amniotic Sac Issue Ruled Out
- Membrane Problem Observation
ICD-10 Codes:
- Z0371: Encounter for suspected problem with amniotic cavity and membrane ruled out
Also known as:
- Vomiting During Pregnancy
- Health Problems in Pregnancy
- Nausea and Vomiting
- Pregnancy Vomiting
- Morning Sickness
- Emisis Gravidarum
ICD-10 Codes:
- O219: Vomiting of pregnancy, unspecified
Also known as:
- Fetal Heart Rate Problems
- Irregular Fetal Heartbeat
- Fetal Arrhythmia
- Abnormal Fetal Heart Rhythm
ICD-10 Codes:
- O368330: Maternal care for abnormalities of the fetal heart rate or rhythm, third trimester, not applicable or unspecified
Also known as:
- High Blood Pressure During Pregnancy
- High Blood Pressure in Pregnancy
- Chronic hypertension in pregnancy
- Essential hypertension complicating pregnancy
- Hypertension during gestation
- Pre-existing high blood pressure in pregnancy
ICD-10 Codes:
- O10013: Pre-existing essential hypertension complicating pregnancy, third trimester
Also known as:
- Medical Check After Other Accident
- Post-injury medical exam
- Accident injury evaluation
- General accident checkup
ICD-10 Codes:
- Z043: Encounter for examination and observation following other accident
Also known as:
- Vaginal Spotting During Pregnancy
- Health Problems in Pregnancy
- Vaginal Bleeding
- Light bleeding in pregnancy
- Pregnancy spotting
- Bleeding during gestation
ICD-10 Codes:
- O26852: Spotting complicating pregnancy, second trimester
What procedures does an Obstetrician / Gynecologist (OBGYN) like Dr. Gerren typically perform?
As an Obstetrician / Gynecologist (OBGYN), Dr. Gerren performs a variety of medical procedures. This procedure information is derived from anonymized insurance claims and highlights the medical procedures most commonly performed by Dr. Gerren. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly. Learn more about our claims-based healthcare methodology.
Also known as:
- Fetal Non-Stress Test
- Nonstress Test
- Nonstress Test (NST)
- Fetal Heart Rate Monitoring
- NST for Pregnancy
- Baby Heartbeat Test
CPT Codes:
- 59025: Fetal non-stress test
Does Dr. Gerren accept my insurance?
Dr. Gerren accepts most major insurance plans. Important: Please call our office at (718) 270-2057 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Gerren accept in Brooklyn, NY?
Dr. Gerren in Brooklyn, NY accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
Cigna Group
CVS Health (formerly Aetna)
Health Care Service Corporation
State of Illinois
UMR Administered Payer
View All Insurances
Where is Dr. Gerren's office located?
Dr. Allison Gerren's Primary Practice
450 Clarkson Ave # 24
Brooklyn, NY 11203
(718) 270-2057
What hospitals are Dr. Gerren affiliated with?
Castle Connolly Top Hospital
This doctor is affiliated with a Castle Connolly Top Hospital.
Dr. Gerren has admitting privileges at the following hospitals:
Northwestern Memorial Hospital,Chicago, IL
Ranked in 4 Procedures

Northwestern Memorial Hospital,Chicago, IL
Ranked in 4 Procedures
Ann & Robert H. Lurie Childrens Hospital Of Chicago,Chicago, IL
Ann & Robert H. Lurie Childrens Hospital Of Chicago,Chicago, IL
Saint Francis Hospital - Evanston Llc,Evanston, IL
Saint Francis Hospital - Evanston Llc,Evanston, IL
What is Dr. Gerren's NPI number?A National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Gerren's National Provider Identifier (NPI) number is 1336723360.
What common questions do patients ask about Dr. Gerren?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Gerren
What is Dr. Allison Gerren's specialty?
Dr. Gerren is an Obstetrician / Gynecologist (OBGYN) near Brooklyn, NY.
What does an Obstetrician / Gynecologist (OBGYN) do?
An obstetrician/gynecologist has specialized knowledge, skills, and expertise in the medical and surgical management of the female reproductive system and related disorders. This physician acts as a consultant to other healthcare providers while also serving as a primary care physician for women, addressing their unique health needs throughout various stages of life.
Is Dr. Allison Gerren affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Gerren is affiliated with Northwestern Memorial Hospital which is a Castle Connolly Top Hospital. Castle Connolly Top Hospitals are healthcare institutions recognized for their excellence in specific medical procedures and overall patient care. They are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals
When to see an Obstetrician / Gynecologist (OBGYN)?: Guides for symptoms, conditions, and treatments
Understand your symptoms and know when it’s time to see an Obstetrician / Gynecologist (OBGYN). Explore insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.
Is Dr. Allison Gerren accepting new patients in Brooklyn, NY?
Yes, Dr. Allison Gerren is accepting new patients at this time.
Does Dr. Allison Gerren offer online booking?
Please contact Dr. Gerren's office at (718) 270-2057 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Dr. Allison Gerren?
Please contact Dr. Gerren's office at (718) 270-2057 to schedule an appointment.
Where is Dr. Gerren's office located?
Dr. Gerren's office is located in Brooklyn, NY.
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