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GREGG ATSUSHI SHIMOMURA MD
NPI 1538280367
Obstetrics & Gynecology in Aiea, HI

Active since April 02, 2007PECOS EnrolledAccepts Medicare Assignment
99 128 AIEA HEIGHTS DRIVE, SUITE 504, AIEA, HI 96701(808) 487-2497(808) 487-2494 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Gregg Atsushi Shimomura Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

GREGG ATSUSHI SHIMOMURA MD (NPI 1538280367) is an individual obstetrics & gynecology provider in Aiea, Hawaii, licensed in Hawaii (MD6215) and active in the NPI registry since April 2007. He is enrolled in Medicare PECOS, is affiliated with The Queens Medical Center, and is a graduate of University Of Hawaii John A. Burns School Of Medicine (1986).

NPPES Registry Identity

NPI1538280367
Entity TypeIndividualMale
Primary Taxonomy207V00000X
Provider Legal NameGREGG ATSUSHI SHIMOMURACredential: MD
Location Address99 128 AIEA HEIGHTS DRIVE, SUITE 504Aiea, HI 96701-3938
Mailing Address99 128 Aiea Heights Drive, Suite 504Aiea, HI 96701-3938 · (808) 487-2497 · Fax (808) 487-2494
Phone(808) 487-2497
Fax(808) 487-2494
Sole ProprietorNo
Medical School CMSUniversity Of Hawaii John A. Burns School Of MedicineGraduated 1986
Enumeration DateApril 2, 2007
Last NPPES UpdateJuly 8, 2007
✔ NPI 1538280367 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License✔ Licensed in HI · MD6215
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
99 128 AIEA HEIGHTS DRIVE, Aiea, HI 96701
Open in Google Maps ↗

Other Identifiers 4

Other078493HI · Hawaii Medical Service As
Medicare UPINE58532
Medicaid05906901HI
Medicare ID-Type Unspecified0000BDRJQ

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include HMSA.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Gregg Atsushi Shimomura Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6608899695
PECOS Enrollment IDI20060104001028
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 3

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
237 services181 patients
Cervical or vaginal cancer screening; pelvic and clinical breast examination G0101
This procedure involves checking for health issues in the lower abdomen and chest area. It helps identify early signs of certain conditions, increasing the chance for successful treatment. It's a routine check-up that's important for maintaining good health.
97 services97 patients
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212
This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.
48 services43 patients

Hospital Affiliations CMS Care Compare 5

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

The Queens Medical Center

Acute Care Hospitals · Honolulu, HI
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number120001
Location1301 Punchbowl StHonolulu, HI 96813 · Honolulu County
Emergency services Birthing friendly

Adventist Health Castle

Acute Care Hospitals · Kailua, HI
5/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number120006
Location640 Ulukahiki StKailua, HI 96734 · Honolulu County
Emergency services Birthing friendly

Kuakini Medical Center

Acute Care Hospitals · Honolulu, HI
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number120007
Location347 North Kuakini StreetHonolulu, HI 96817 · Honolulu County
Emergency services

Pali Momi Medical Center

Acute Care Hospitals · Aiea, HI
4/5 CMS rating
OwnershipProprietary
CMS Certification Number120026
Location98-1079 Moanalua RoadAiea, HI 96701 · Honolulu County
Emergency services
OwnershipVoluntary non-profit - Private
CMS Certification Number123300
Location1319 Punahou StreetHonolulu, HI 96826 · Honolulu County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 96701 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$136.68 typical visit price
range $60.53 – $180.05
Typical copayment $34.17 (range $15.13 – $45.01)
Most-billed visit code 99204
Established Patient
$74.92 typical visit price
range $20.09 – $147.56
Typical copayment $18.73 (range $5.02 – $36.89)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

GEORGE SHIMOMURA MD
Obstetrics & Gynecology (Gynecology)
99 128 AIEA HEIGHTS DRIVE, SUITE 504
AIEA, HI 96701
Honolulu County (808) 487-2497

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Gregg Shimomura's NPI number?

The NPI number for Gregg Shimomura is 1538280367. It was assigned to this individual provider in the NPPES registry on April 2, 2007.

Where is Gregg Shimomura located?

Gregg Shimomura practices at 99 128 Aiea Heights Drive Suite 504, Aiea, HI 96701. The listed phone number is (808) 487-2497.

What is Gregg Shimomura's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Gregg Shimomura enrolled in Medicare?

Yes. Gregg Shimomura is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Gregg Shimomura accept?

Health plans from HMSA list Gregg Shimomura as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Gregg Shimomura affiliated with any hospitals?

According to CMS data, Gregg Shimomura is affiliated with The Queens Medical Center, Adventist Health Castle, Kuakini Medical Center, Pali Momi Medical Center and Kapiolani Medical Center For Women & Children.

When was this NPI record last updated?

The NPPES record for Gregg Shimomura was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.