DR. GREGORY Y. DUNN M.D.
NPI 1700901212
Radiology - Diagnostic Radiology in Honolulu, HI

Active since March 21, 2007PECOS EnrolledAccepts Medicare Assignment
57.56/100
CMS Quality Rating
321 N KUAKINI ST, ROOM 405, HONOLULU, HI 96817(808) 522-0190(808) 523-9068 Get Directions Write a Review

NPPES record last updated: January 18, 2011. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. Gregory Y. Dunn M.d. NPPES

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

DR. GREGORY Y. DUNN M.D. (NPI 1700901212) is an individual diagnostic radiology provider in Honolulu, Hawaii, licensed in Hawaii (MD15853) and active in the NPI registry since March 2007. He is enrolled in Medicare PECOS, is affiliated with The Queens Medical Center, and is a graduate of University Of California, Geffen School Of Medicine (2002).

NPPES Registry Identity

NPI1700901212
Entity TypeIndividualMale
Primary Taxonomy2085R0202X
Provider Legal NameDR. GREGORY Y. DUNNCredential: M.D.
Location Address321 N KUAKINI ST, ROOM 405Honolulu, HI 96817-2364
Mailing Address11234 Anderson St, Room 2605Loma Linda, CA 92354-2804 · (909) 558-7814 · Fax (909) 558-0202
Fax(808) 523-9068
Sole ProprietorNo
Medical School CMSUniversity Of California, Geffen School Of MedicineGraduated 2002
Enumeration DateMarch 21, 2007
Last NPPES UpdateJanuary 18, 2011
NPI 1700901212 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians
Taxonomy Code2085R0202X
Licenses Licensed in HI · MD15853 Licensed in CA · A84927
Definition
A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.
Also ListedInternal MedicineTaxonomy 207R00000X · License A84927 (CA)
321 N KUAKINI ST, Honolulu, HI 96817

Other Identifiers 13

Other1082145098HI · Aetna
Medicaid00A849270CA
Medicare PINDT134ZHI
Other103802483HI · Us Marshall Svc-fed Det
Medicaid64773702HI
Medicaid64773701HI
Other0429291089HI · Uha
Other20124380HI · Us Dept Of Labor
OtherMD15853HI · Queens Healthcare
Other0295865HI · Hmsa/hmsa Quest
OtherA0295863HI · Hmsa/hmsa Quest
Medicare UPINI27902
Other990157698HI · Hmaa

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

Dr. Gregory Y. Dunn M.d. 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 ID7618916958
PECOS Enrollment IDI20101108001056
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 52

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.

Screening mammography 77067
Screening mammography is a preventative measure that uses low-dose X-rays to take images of the chest area. It's a key tool in early detection of abnormalities, helping to identify issues before they become symptomatic. It is recommended annually for certain age groups.
1,774 services1,774 patients
Screening 3d breast mammography 77063
Screening 3D breast mammography is a procedure that uses low-dose X-rays to create detailed images of the breast. This allows for early detection of any unusual changes or growths. It's a non-invasive, outpatient procedure that typically takes about 30 minutes.
1,510 services1,510 patients
X-ray of chest, 1 view 71045
A chest X-ray, 1 view, is a quick, painless test that produces images of the structures within your chest, such as your heart, lungs, and blood vessels. It helps in diagnosing conditions like pneumonia, heart problems, or lung cancer. You'll stand in front of a machine that emits X-rays, which pass through your body to create the image.
480 services392 patients
X-ray of chest, 2 views 71046
A chest X-ray, 2 views, is a quick, painless test that creates pictures of the structures inside your chest, such as your heart, lungs, and blood vessels. Two different angles are used to get a comprehensive view. This helps in diagnosing conditions like pneumonia, heart problems, or lung cancer.
233 services230 patients
Diagnostic mammography of 1 breast 77065
Diagnostic mammography of 1 breast is a detailed imaging test that allows doctors to closely examine a specific area in the breast. It's often used when a routine screening reveals an abnormality. This test can help identify any unusual changes or issues.
171 services160 patients
Limited ultrasound scan of 1 breast 76642
A limited ultrasound scan of one breast is a non-invasive imaging test. It uses sound waves to create pictures of the inside of your breast. It helps identify any unusual growths or changes. It's safe, quick, and typically painless.
166 services161 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

Straub Clinic And Hospital

Acute Care Hospitals · Honolulu, HI
4/5 CMS rating
OwnershipProprietary
CMS Certification Number120022
Location888 S King StreetHonolulu, HI 96813 · 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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 96817 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
$92.50 typical visit price
range $60.53 – $180.05
Typical copayment $23.12 (range $15.13 – $45.01)
Most-billed visit code 99203
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

57.56/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Individually scored
Quality90
Improvement Activities0
Cost71.87

Reported Quality Measures

Radiation Consideration for Adult CT: Utilization of Dose Lowering Techniques
Percentage of final reports for patients aged 18 years and older undergoing CT with documentation that one or more of the following dose reduction techniques were used: - Automated exposure control - Adjustment of the mA and/or kV according to patient size -…
99%391 patients
Radiology: Reminder System for Screening Mammograms
Percentage of patients undergoing a screening mammogram whose information is entered into a reminder system with a target due date for the next mammogram
100%784 patients
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Other Providers at the Same Location NPPES 20

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

Internal Medicine
321 N KUAKINI ST, SUITE NUMBER 715
HONOLULU, HI 96817
Pediatrics
321 N KUAKINI ST, SUITE #201
HONOLULU, HI 96817
Internal Medicine
321 N KUAKINI ST, 708
HONOLULU, HI 96817
Internal Medicine (Pulmonary Disease)
321 N KUAKINI ST, STE 502
HONOLULU, HI 96817
Nurse Practitioner
321 N KUAKINI ST
HONOLULU, HI 96817
Internal Medicine
321 N KUAKINI ST, SUITE 514
HONOLULU, HI 96817
Internal Medicine (Infectious Disease)
321 N KUAKINI ST
HONOLULU, HI 96817
Internal Medicine (Cardiovascular Disease)
321 N KUAKINI ST, SUITE 504
HONOLULU, HI 96817

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 Gregory Dunn's NPI number?

The NPI number for Gregory Dunn is 1700901212. It was assigned to this individual provider in the NPPES registry on March 21, 2007.

Where is Gregory Dunn located?

Gregory Dunn practices at 321 N Kuakini St Room 405, Honolulu, HI 96817. The listed phone number is (808) 522-0190.

What is Gregory Dunn's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

Is Gregory Dunn enrolled in Medicare?

Yes. Gregory Dunn 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.

Is Gregory Dunn affiliated with any hospitals?

According to CMS data, Gregory Dunn is affiliated with The Queens Medical Center, Adventist Health Castle, Kuakini Medical Center, Straub Clinic And Hospital and Pali Momi Medical Center.

When was this NPI record last updated?

The NPPES record for Gregory Dunn was last updated on January 18, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.