1. Home
  2. Directory
  3. Hawaii
  4. Wailuku
  5. Internal Medicine
  6. NPI Profile
Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

GREGORY PARK M.D.
NPI 1861497596
Internal Medicine in Wailuku, HI

Active since June 17, 2005PECOS Enrolled
75/100
CMS Quality Rating
30 N CHURCH ST, WAILUKU, HI 96793(808) 244-7627(808) 242-6696 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Gregory Park M.d. NPPES

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

GREGORY PARK M.D. (NPI 1861497596) is an individual internal medicine provider in Wailuku, Hawaii, licensed in Hawaii (MD3915) and active in the NPI registry since June 2005. He is enrolled in Medicare PECOS, is affiliated with Maui Memorial Medical Center, and is a graduate of Albert Einstein College Of Medicine Of Yeshiva University (1975).

NPPES Registry Identity

NPI1861497596
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameGREGORY PARKCredential: M.D.
Location Address30 N CHURCH STWailuku, HI 96793-1600
Mailing AddressSeven Waterfront Plaza, 500 Ala Moana Blvd., Suite 300Honolulu, HI 96813 · (808) 521-1317 · Fax (808) 533-1482
Phone(808) 244-7627
Fax(808) 242-6696
Sole ProprietorNo
Medical School CMSAlbert Einstein College Of Medicine Of Yeshiva UniversityGraduated 1975
Enumeration DateJune 17, 2005
Last NPPES UpdateJuly 13, 2026
✔ NPI 1861497596 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in HI · MD3915
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
30 N CHURCH ST, Wailuku, HI 96793
Open in Google Maps ↗

Other Identifiers 1

Medicaid04550602HI

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Gregory Park M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID3870483589
PECOS Enrollment IDI20040614001422
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 7

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 moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
927 services228 patients
Injection of drug or substance under skin or into muscle 96372
This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.
71 services17 patients
Administration of influenza virus vaccine G0008
The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.
48 services48 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
29 services29 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000
An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.
27 services25 patients
Electrocardiogram, routine ecg with 12 leads; performed as a screening for the initial preventive physical examination with interpretation and report G0403
An Electrocardiogram (ECG) with 12 leads is a non-invasive test that measures the electrical activity of your heart. It's performed during your initial physical examination to screen for heart conditions. The results are interpreted and compiled into a report for further evaluation.
24 services24 patients

Hospital Affiliations CMS Care Compare 2

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

Maui Memorial Medical Center

Acute Care Hospitals · Wailuku, HI
3/5 CMS rating
OwnershipGovernment - State
CMS Certification Number120002
Location221 Mahalani StreetWailuku, HI 96793 · Maui County
Birthing friendly

Cooley Dickinson Hospital Inc,the

Acute Care Hospitals · Northampton, MA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220015
Location30 Locust StreetNorthampton, MA 01060 · Hampshire County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 96793 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
$105.65 typical visit price
range $20.09 – $147.56
Typical copayment $26.41 (range $5.02 – $36.89)
Most-billed visit code 99214
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.

75/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Individually scored

Referred Medical Equipment & Supplies CMS DME claims 8

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
5 suppliers11 claims28 services$5.67 avg. paid by Medicare
Nasal interface (mask or cannula type) used with positive airway pressure device, with or without head strap A7034
DME-Other DME · category DE001N
3 suppliers14 claims14 services$69.10 avg. paid by Medicare
Filter, disposable, used with positive airway pressure device A7038
DME-Other DME · category DE001N
3 suppliers12 claims66 services$2.31 avg. paid by Medicare
Humidifier, heated, used with positive airway pressure device E0562
DME-Other DME · category DE001N
1 supplier14 claims14 services$18.00 avg. paid by Medicare
Continuous positive airway pressure (cpap) device E0601
DME-Other DME · category DE001N
1 supplier20 claims20 services$49.55 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
2 suppliers12 claims12 services$119.41 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 4

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

ROBIN RENEE HALLMAN MD
Student in an Organized Health Care Education/Training Program
30 N CHURCH ST, SUITE 100
WAILUKU, HI 96793
Maui County (808) 281-6580
CELESTE ADRIAN M.D., LLC
Clinic/Center (Medical Specialty)
30 N CHURCH ST, STE 300
WAILUKU, HI 96793
Maui County (808) 242-9787
GREGORY PARK MD INC
Internal Medicine (Medical Oncology)
30 N CHURCH ST
WAILUKU, HI 96793
Maui County (808) 244-7627
THE WOMEN'S HEALTH CENTER OF MAUI, LLC
Specialist
30 N CHURCH ST, SUITE 300
WAILUKU, HI 96793
Maui County (808) 242-9787

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 Park's NPI number?

The NPI number for Gregory Park is 1861497596. It was assigned to this individual provider in the NPPES registry on June 17, 2005.

Where is Gregory Park located?

Gregory Park practices at 30 N Church St, Wailuku, HI 96793. The listed phone number is (808) 244-7627.

What is Gregory Park's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Gregory Park enrolled in Medicare?

Yes. Gregory Park is registered in the Medicare PECOS enrollment system.

Is Gregory Park affiliated with any hospitals?

According to CMS data, Gregory Park is affiliated with Maui Memorial Medical Center and Cooley Dickinson Hospital Inc,the.

When was this NPI record last updated?

The NPPES record for Gregory Park was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 days 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.