Dr. Greigh I. Hirata
- Gender: Male
- Experience: 34 years
- Graduation year: 1987
- Sole propriator: Yes
- NPI: 1144378670
Dr. Greigh I. Hirata MD
Obstetrician and Gynecologist
He is located at 1600 Kapiolani Boulevard Suite 1025 in Honolulu, HI 96814. Can help patients with the following: Cancer, Cervical Intraepithelial Neoplasia (CIN), High Blood Pressure, Pelvic Inflammatory Disease (PID), Perimenopause, Vaginal Pain. His National Provider Identifier (NPI) number is 1144378670. Appointment can be made via the phone number (808) 945-2229. He is affiliated with 1 practices.
Conditions treated
Dr. Greigh Isamu Hirata, being an obstetrician and gynecologist, treats the following conditions. Please be advised that this list may not be complete. For the full list of conditions treated, consult directly with Dr. Greigh I. Hirata.
- Amenorrhea
- Bacterial Vaginosis
- Birth Control Counseling
- Blood in Urine
- Braxton Hicks Contractions
- Breast Cancer
- Breastfeeding
- Breastfeeding and Lactation
- Cancer
- Cervical Cancer
- Cervical Intraepithelial Neoplasia (CIN)
- Chlamydia
- Ectopic Pregnancy
- Endometriosis
- Fibrocystic Breast Disease
- Gestational Diabetes
- Group B Streptococcal Infection (GBS)
- Gynecological Exam
- High Blood Pressure
- Hot Flashes
- Human Papillomavirus (HPV)
- Infertility
- Labor and Birth
- Menopause
- Menstrual Cramps
- Miscarriage
- Morning Sickness
- Osteoporosis
- Ovarian Cancer
- Ovarian Cysts
- Overactive Bladder (OAB)
- Pelvic Inflammatory Disease (PID)
- Pelvic Pain
- Perimenopause
- Placenta Previa
- Polycystic Ovary Syndrome (PCOS)
- Preeclampsia and Eclampsia
- Pregnancy
- Premature Ovarian Failure (POF)
- Premenstrual Dysphoric Disorder (PMDD)
- Premenstrual Syndrome (PMS)
- Prenatal Care
- Sexually Transmitted Diseases (STDs)
- Trichomoniasis
- Urinary Incontinence (UI)
- Urinary Retention
- Urinary Tract Infection (UTI)
- Uterine Cancer
- Uterine Fibroids
- Uterine Growths
- VBAC
- Vaginal Atrophy and Dryness
- Vaginal Bleeding
- Vaginal Cancer
- Vaginal Pain
- Vaginitis
- Women's Health
- Yeast Infection
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. Greigh I. Hirata as in-network for the following 2026 plans.
Health plans
HMSA
Network data as of Sep 14, 2026, as reported by the insurer.
Show all 7 plans from HMSA
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| HMSA Bronze PPO I | PPO · Expanded Bronze | Preferred Provider Plan | Not accepting new patients |
| HMSA Bronze PPO II HSA | PPO · Expanded Bronze | Preferred Provider Plan | Not accepting new patients |
| HMSA Catastrophic Plan | PPO · Catastrophic | Preferred Provider Plan | Not accepting new patients |
| HMSA Gold PPO I | PPO · Gold | Preferred Provider Plan | Not accepting new patients |
| HMSA Gold PPO II | PPO · Gold | Preferred Provider Plan | Not accepting new patients |
| HMSA Platinum PPO | PPO · Platinum | Preferred Provider Plan | Not accepting new patients |
| HMSA Silver PPO | PPO · Silver | Preferred Provider Plan | Not accepting new patients |
This covers ACA Marketplace plans only, as reported by each insurer. It does not include employer, Medicare Advantage, or state-run exchange plans, and a plan missing from this list does not mean Dr. Greigh I. Hirata is out of network. Insurer directories can be out of date, so always confirm with the insurer and the office before your visit.
Medicare Enrollment
Dr. Greigh I. Hirata is enrolled to bill Medicare as a Practitioner - Obstetrics/gynecology .
Bills through: Hawaii Permanente Medical Group Inc
Based on Medicare's public enrollment records as of Jul 17, 2026. This reflects Medicare fee-for-service enrollment only and says nothing about other insurance, quality, outcomes, or board certification.
Payments received
Drug payment
| Ariosa Diagnostics | $5703 |
| Hologic | $2189 |
| GE Healthcare | $601 |
Other
| Consulting | $7000 |
| Food and Beverage | $1795 |
Studies
Graduated in 1987
Looking for more Obstetrician and Gynecologists?
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- Address: Suite 1810 1441 Kapiolani Boulevard Honolulu, 96814, HI
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- Gender: Male
- Address: 1010 Pensacola Street Honolulu, 96814, HI
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- Gender: Female
- Address: Suite 806 1441 Kapiolani Boulevard Honolulu, 96814, HI
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- Address: Suite 310 1401 South Beretania Street Honolulu, 96814, HI
- Gender: Male
- Address: Suite 701 1100 Ward Avenue Honolulu, 96814, HI
Questions & Answers
Where can you meet with Dr. Greigh Isamu Hirata?
Dr. Greigh Isamu Hirata's office is located at 1600 Kapiolani Boulevard Suite 1025 in Honolulu, HI 96814.
Does Dr. Greigh Isamu Hirata accept insurance?
Dr. Greigh Isamu Hirata is listed in-network for 7 ACA Marketplace (Obamacare/HealthCare.gov) plans from HMSA. See the Marketplace plans section for details.
Does Dr. Greigh Isamu Hirata have affiliation with practices?
Dr. Greigh Isamu Hirata is affiliated with Fetal Diagnostic Institute of the Pacific.
What conditions does Dr. Greigh Isamu Hirata treat?
Dr. Greigh Isamu Hirata provides treatment for Cancer, Cervical Intraepithelial Neoplasia (CIN), High Blood Pressure, Pelvic Inflammatory Disease (PID), Perimenopause, Vaginal Pain. For the full list see this list.