Physician Profile
Ian Oyama, MD
Unclaimed ProfileAbout Dr. Oyama
Ian Oyama, MD practices obstetrics & gynecology in Honolulu, HI. Ian is a 1997 graduate of University of Hawaii John A. Burns School of Medicine. According to Medicare claims data, Ian cared for 206 Medicare patients across 226 services. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, insertion of temporary bladder tube, and established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
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
- (808) 949-5305
- Email not available
Practice Locations
1319 PUNAHOU ST STE 801
Honolulu, HI 96826
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
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
Pelvic pain and benign gynecology
- Chronic pelvic pain
- Ovarian cysts
- Painful intercourse
- Pelvic organ prolapse
- Urinary incontinence in women
- Uterine fibroids
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
Contraception
- Birth Control Side Effects
Fertility
- Infertility
- Recurrent Miscarriages
Infections
- Chlamydia
- Pelvic Inflammatory Disease (PID)
Pregnancy Complications
- High-risk pregnancy
- Twins or triplets
Vaginal & Vulvar Health
- Abnormal vaginal discharge
Procedures & services
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
Pregnancy and delivery
- External cephalic version
- Forceps- or vacuum-assisted delivery
- Prenatal care
- Vaginal childbirth
Preventive and diagnostic
- Colposcopy
- Endometrial biopsy
- Human papillomavirus testing
Birth Control
Contraception
- Birth control counseling
Diagnostic Procedures
- Amniocentesis
Fertility
- Egg freezing
- Intrauterine Insemination (IUI)
Hormone & Menopause
- Hormone Replacement Therapy (HRT) Consultation
Laparoscopic and adnexal surgery
- Gynecologic laparoscopy
- Ovarian cyst removal
- Ovary removal
Pelvic floor
- Pelvic organ prolapse surgery
- Sling surgery for stress incontinence
Postpartum Care
- Postpartum Checkup
Pregnancy & Prenatal
- Fetal Heart Rate Monitoring
- Prenatal genetic screening
Preventive Care
Preventive Screening
- STI Screening Panel
Routine Exams
- Pelvic exam
Surgeries
- Endometriosis Excision Surgery
- Labia Reduction
- Tubal Ligation ("Tubes Tied")
Uterine and cervical procedures
- Cervical cone biopsy
- Dilation and curettage
- Endometrial ablation
- Hysteroscopy
- LEEP
- Myomectomy
Procedures Most Often Billed to Medicare
226 services · 206 patients · 8 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of temporary bladder tube | Procedure | 51701 |
49 | As often as other peers in OB-GYN |
| Repair of pelvic ligaments through vagina | Procedure | 57282 |
14 | As often as other peers in OB-GYN |
| Insertion of artificial material for pelvic floor defect | Procedure | 57267 |
13 | Less often than most peers in OB-GYN |
| Repair of bulging of rectum and bladder into vaginal wall | Procedure | 57265 |
13 | Less often than most peers in OB-GYN |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
58 | More often than most peers in OB-GYN |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
31 | 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 |
30 | More often than most peers in OB-GYN |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
18 | More often than most 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.
Other OB-GYNs at this location 6
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 1
Clinically related specialties at the same address — the people this provider most likely works alongside.
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.
More connections — 21 related providers in 4 groups
Other OB-GYNs in Honolulu 5
Same specialty, same city.
Trained at University of Hawaii John A. Burns School of Medicine 4
Other providers in the same specialty who trained at the same institution.
Class of 1997 at University of Hawaii John A. Burns School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Insertion of temporary bladder tube 4
Providers in HI who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Oyama?
Dr. Oyama is an OB-GYN in Honolulu, HI. That is the designation recorded for this NPI in the federal registry, where it is listed as “Obstetrics & Gynecology”.
NPI registry
What is Dr. Oyama's address?
Dr. Oyama is listed at 1319 Punahou St Ste 801, Honolulu, HI 96826. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Oyama?
The number on file is (808) 949-5305. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Oyama's NPI number?
Dr. Oyama's National Provider Identifier is 1598749640. 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 Dr. Oyama train?
Dr. Oyama attended University of Hawaii John A. Burns School of Medicine, graduating in 1997. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Oyama been practicing?
Dr. Oyama has 29 years experience. Calculated from a graduation year of 1997, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Oyama perform?
According to Medicare billing data, Dr. Oyama performs procedures including insertion of temporary bladder tube, repair of pelvic ligaments through vagina and insertion of artificial material for pelvic floor defect, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Oyama confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Oyama. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.