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- 18901 Northern Blvd, Flushing, NY 11358
About Dr. Chun
Hajoon Chun, M.D. is a healthcare provider in Flushing, NY specializing in maternal & fetal medicine. Hajoon trained at Tufts University School of Medicine, graduating in 1991. According to Medicare claims data, Hajoon cared for 61 Medicare patients across 67 services. The services billed most often include ultrasound scan of uterus, ovaries, tubes, cervix and pelvic area through vagina and complete ultrasound scan of pelvis. This provider record is associated with NPI 1174612592.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (718) 253-8111
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
18901 NORTHERN BLVD
Flushing, NY 11358
Conditions Commonly Evaluated or Treated
Within Maternal & Fetal Medicine generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Early pregnancy complications
- Cesarean Scar Pregnancy
- Molar Pregnancy
Fetal conditions
- Cleft Lip or Palate on Ultrasound
- Down Syndrome in Pregnancy
- Fetal Anemia
- Hole In Diaphragm
Fetal Health
- Birth Defects Found on Ultrasound
- Congenital heart defect
- Fetal growth restriction
- Fluid Buildup in Fetus
- Intestines Outside Baby's Abdomen
- Irregular Fetal Heartbeat
- Open Spine Birth Defect
- Twin-To-Twin Transfusion Syndrome
Infections
Maternal Health
- Antiphospholipid Syndrome
- High blood pressure in pregnancy
- Lupus in Pregnancy
- Maternal Kidney Disease
- Pre-existing Diabetes in Pregnancy
- Seizures During Pregnancy
- Severe Itching in Pregnancy
- Thyroid Disease in Pregnancy
Maternal health
- Blood Clots In Pregnancy
- Cancer During Pregnancy
- Heart Disease in Pregnancy
- Obesity in Pregnancy
- Severe Anemia in Pregnancy
- Sickle Cell Disease in Pregnancy
Placenta complications
- Placental abruption
- Vasa Previa
Placental Disorders
- Placenta Accreta
- Placenta previa
Pregnancy Complications
- HELLP Syndrome
- Hyperemesis gravidarum
- Low Amniotic Fluid
- Preterm labor
- Recurrent miscarriage
- Rh incompatibility
- Short Cervix
- Too Much Amniotic Fluid
- Uterine Fibroids in Pregnancy
- Water Breaking Early
Pregnancy complications
- History of Stillbirth
- Subchorionic Bleed
Risk Factors
- Abnormally Shaped Uterus
- Previous Preterm Birth
- Trouble Conceiving Over 35
Screening & diagnostics
- Abnormal Genetic Screening Results
Umbilical cord complications
- Two-Vessel Umbilical Cord
Procedures & services
Most searched procedures
- Amniocentesis
- Genetic counseling
- High-resolution fetal ultrasound
Consultations
- High-risk pregnancy consultation
- Medication Safety Consultation in Pregnancy
- Preconception counseling
Delivery procedures
- Complex Cesarean Delivery Planning
- EXIT Delivery Procedure
Diagnostic Testing
- Chorionic Villus Sampling
- Fetal Blood Sampling
- Prenatal genetic screening
Fetal Monitoring
- Antepartum and intrapartum fetal monitoring
- Fetal biophysical profile
Fetal procedures
- Amnioinfusion
- Balloon Placement for Fetal Diaphragmatic Hernia
- Cord Coagulation for Twin Complications
- Fetal Cyst Drainage
- Selective Reduction
Fetal Therapies
- Fetal Blood Transfusion
Genetic tests
Imaging
- Baby Heart Ultrasound
- Cervical Length Check
- Fetal MRI
- Nuchal Translucency Screening
- Umbilical Cord Blood Flow Ultrasound
Medical management
- Blood Thinner Management in Pregnancy
- Contraction Stopping Medication
- Gestational Diabetes Insulin Management
- Medication for Baby's Heart Rhythm
Preventive treatments
- Steroid Shots for Baby's Lungs
Surgical Procedures
- Cervical Stitch
- Fetal Shunt Placement
- In-Utero Surgery
- Laser Surgery for Twins
Therapeutic Procedures
- Draining Excess Amniotic Fluid
- External cephalic version
- Progesterone to Prevent Preterm Birth
Ultrasound & imaging
- 3D and 4D Ultrasound for Birth Defects
- Early Fetal Anatomy Scan
- Fetal Skeletal Survey
- Uterine Artery Doppler Ultrasound
Procedures Most Often Billed to Medicare
67 services · 61 patients · 2 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Ultrasound scan of uterus, ovaries, tubes, cervix and pelvic area through vagina | Imaging | 76830 |
34 | As often as other peers in Maternal & Fetal Medicine |
| Complete ultrasound scan of pelvis | Imaging | 76856 |
33 | As often as other peers in Maternal & Fetal Medicine |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other maternal & fetal medicines in Flushing 6
Same specialty, same city.
Trained at Tufts University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 1991 at Tufts University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Ultrasound scan of uterus, ovaries, tubes, cervix and pelvic area through vagina 8
Providers in NY who bill this service to Medicare most often.
Common questions
What kind of doctor is Hajoon Chun?
Hajoon Chun is a maternal & fetal medicine in Flushing, NY. That is the designation recorded for this NPI in the federal registry.
NPI registry
What is Hajoon Chun's address?
Hajoon Chun is listed at 18901 Northern Blvd, Flushing, NY 11358. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Hajoon Chun?
The number on file is (718) 253-8111. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Hajoon Chun's NPI number?
Hajoon Chun's National Provider Identifier is 1174612592. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Hajoon Chun train?
Hajoon Chun attended Tufts University School of Medicine, graduating in 1991. This comes from the CMS National Downloadable File.
CMS public data
How long has Hajoon Chun been practicing?
Hajoon Chun has 35 years experience. Calculated from a graduation year of 1991, reported in the CMS National Downloadable File.
CMS public data
What procedures does Hajoon Chun perform?
According to Medicare billing data, Hajoon Chun performs imaging including ultrasound scan of uterus, ovaries, tubes, cervix and pelvic area through vagina and complete ultrasound scan of pelvis. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Hajoon Chun confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Hajoon Chun. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.