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Edit this profileAt a glance
- 16388 Colima Rd Ste 206, Hacienda Heights, CA 91745
About Dr. Lee
Yiu Fun Derek Lee, M.D practices obstetrics & gynecology in Hacienda Heights, CA. Yiu Fun Derek is a 1993 graduate of University of California, Davis School of Medicine. Medicare claims data shows Yiu Fun Derek provided 141 services to 112 patients. The services billed most often include established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory, and cervical or vaginal cancer screening; pelvic and clinical breast examination. The provider's National Provider Identifier (NPI) is 1114081981.
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
- (626) 369-1886
- Email not available
Practice Locations
16388 COLIMA RD STE 206
Hacienda Heights, CA 91745
Conditions Commonly Evaluated or Treated
Within Obstetrics and Gynecology 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
Contraception
- Birth Control Side Effects
Fertility
- Recurrent Miscarriages
- Infertility
High-risk or subspecialty
- Heart disease complicating pregnancy
- Placenta accreta spectrum
- Suspected fetal anomaly
Infections
- Pelvic Inflammatory Disease (PID)
- Chlamydia
Pelvic pain and benign gynecology
- Uterine fibroids
- Chronic pelvic pain
- Ovarian cysts
- Painful intercourse
- Pelvic organ prolapse
- Urinary incontinence in women
Most searched conditions
- Endometriosis
- Heavy periods
- Menopause
- PCOS
- Pregnancy
- Yeast infection
Infections and vulvovaginal conditions
- Bacterial vaginosis
- Genital herpes
- Genital warts
- Vulvodynia
Menstrual and hormonal
- Absent periods
- Genitourinary syndrome of menopause
- Painful periods
- Perimenopause
- Premenstrual syndrome
Pregnancy
- Ectopic pregnancy
- Gestational diabetes
- Hyperemesis gravidarum
- Miscarriage
- Placenta previa
- Postpartum depression
- Preeclampsia
- Preterm labor
Cancer and precancer
- Abnormal cervical cells and cervical dysplasia
- Cervical cancer
- Endometrial cancer
- Endometrial hyperplasia
- Ovarian cancer
Pregnancy Complications
- High-risk pregnancy
- Twins or triplets
Vaginal & Vulvar Health
- Abnormal vaginal discharge
Procedures & services
Diagnostic Tests
Hormone & Menopause
- Hormone Replacement Therapy (HRT) Consultation
Laparoscopic and adnexal surgery
- Ovary removal
- Surgical treatment of endometriosis
- Gynecologic laparoscopy
- Ovarian cyst removal
Pelvic floor
- Sling surgery for stress incontinence
- Pelvic organ prolapse surgery
Pregnancy and delivery
- Forceps- or vacuum-assisted delivery
- Vaginal childbirth
- External cephalic version
- Prenatal care
Preventive and diagnostic
- Pelvic examination
- Transvaginal ultrasound
- Well-woman examination
- Colposcopy
- Endometrial biopsy
- Human papillomavirus testing
Subspecialty procedures
- Gynecologic cancer staging surgery
Surgeries
- Labia Reduction
- Tubal Ligation ("Tubes Tied")
- Endometriosis Excision Surgery
Most searched procedures
- C-section
- Hysterectomy
- IUD insertion
- Pap smear
- Ultrasound
Contraception and office treatment
- Contraceptive implant insertion and removal
- Diaphragm fitting
- Pessary fitting and management
Birth Control
- IUD Removal
Contraception
Diagnostic Procedures
- Amniocentesis
Fertility
- Egg freezing
- Intrauterine Insemination (IUI)
Postpartum Care
- Postpartum Checkup
Pregnancy & Prenatal
- Fetal Heart Rate Monitoring
- Prenatal genetic screening
Preventive Care
Preventive Screening
- STI Screening Panel
Routine Exams
- Pelvic exam
Uterine and cervical procedures
- Cervical cone biopsy
- Dilation and curettage
- Endometrial ablation
- Hysteroscopy
- LEEP
- Myomectomy
Procedures Most Often Billed to Medicare
141 services · 112 patients · 4 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
75 | More often than most peers in OB-GYN |
| Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory | Billing code | Q0091 |
25 | As often as other peers in OB-GYN |
| Cervical or vaginal cancer screening; pelvic and clinical breast examination | Billing code | G0101 |
25 | As often as other peers in OB-GYN |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
16 | As often as other peers in OB-GYN |
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 OB-GYNs in Hacienda Heights 2
Same specialty, same city.
Trained at University of California, Davis School of Medicine 8
Other providers in the same specialty who trained at the same institution.
More connections — 8 related providers in 1 group
Class of 1993 at University of California, Davis School of Medicine 8
Providers who graduated from the same medical school in the same year.
Common questions
What does Yiu Fun Derek Lee specialize in?
Yiu Fun Derek Lee is an OB-GYN in Hacienda Heights, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Obstetrics & Gynecology”.
NPI registry
Where is Yiu Fun Derek Lee located?
Yiu Fun Derek Lee is listed at 16388 Colima Rd Ste 206, Hacienda Heights, CA 91745. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Yiu Fun Derek Lee's phone number?
The number on file is (626) 369-1886. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Yiu Fun Derek Lee?
Yiu Fun Derek Lee's National Provider Identifier is 1114081981. 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 Yiu Fun Derek Lee train?
Yiu Fun Derek Lee attended University of California, Davis School of Medicine, graduating in 1993. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Yiu Fun Derek Lee have?
Yiu Fun Derek Lee has 33 years experience. Calculated from a graduation year of 1993, reported in the CMS National Downloadable File.
CMS public data
What does Yiu Fun Derek Lee do most often?
According to Medicare billing data, Yiu Fun Derek Lee the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Yiu Fun Derek Lee's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Yiu Fun Derek Lee. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.