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STEPHEN PETROU
NPI 1457845190
Emergency Medicine in Kailua, HI

Active since June 17, 2018PECOS EnrolledAccepts Medicare Assignment

NPPES record last updated: June 28, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jun 28, 2024, Jun 10, 2022, Jun 17, 2018 (3 updates tracked since 2018).

About Stephen Petrou NPPES

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

STEPHEN PETROU (NPI 1457845190) is an individual emergency medicine provider in Kailua, Hawaii, licensed in Hawaii (MD-24142-0) and active in the NPI registry since June 2018. He is enrolled in Medicare PECOS, is affiliated with Kona Community Hospital, and is a graduate of Other (2018).

NPPES Registry Identity

NPI1457845190
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameSTEPHEN PETROU
Location AddressPO BOX 1266Kailua, HI 96734-1266
Mailing AddressPo Box 1266Kailua, HI 96734-1266 · (808) 261-3326
Phone(808) 261-3326
Sole ProprietorNo
Medical School CMSOtherGraduated 2018
Enumeration DateJune 17, 2018
Last NPPES UpdateJune 28, 20243 updates tracked since enumeration
NPPES CertifiedJune 28, 2024
✔ NPI 1457845190 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
Licenses✔ Licensed in HI · MD-24142-0✔ Licensed in CA · A177003
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
PO BOX 1266, Kailua, HI 96734
Open in Google Maps ↗

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Stephen Petrou 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 ID9335484385
PECOS Enrollment IDI20240716002895
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.

Medicare Billing Reassignment

Medicare enrollment records show Stephen Petrou reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Hawaii Emergency Physicians Associated Inc
1.0 mi
Emergency Medicine
407 ULUNIU ST, 4TH FLOOR
Kailua, HI 96734
  • Reassigned Medicare billing, Hawaii enrollment
  • 206 clinicians in this Medicare group
NPI 1801843198 (808) 261-3326

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 5

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.

Emergency department visit with high level of medical decision making 99285
An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.
69 services67 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010
A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.
56 services52 patients
Emergency department visit with moderate level of medical decision making 99284
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
53 services53 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
27 services26 patients
Emergency department visit with low level of medical decision making 99283
An emergency department visit for a problem of moderate severity involves immediate medical attention for issues like minor fractures, burns, or high fever. The healthcare team will assess your condition, provide necessary treatment, and may suggest further tests or admission if required.
15 services15 patients

Hospital Affiliations CMS Care Compare 2

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

Kona Community Hospital

Acute Care Hospitals · Kealakekua, HI
1/5 CMS rating
OwnershipGovernment - State
CMS Certification Number120019
Location79-1019 Haukapila StreetKealakekua, HI 96750 · Hawaii County
Emergency services Birthing friendly

North Hawaii Community Hospital, Inc

Acute Care Hospitals · Kamuela, HI
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number120028
Location67 1125 Mamalahoa HighwayKamuela, HI 96743 · Hawaii County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 96734 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
$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.

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 Stephen Petrou's NPI number?

The NPI number for Stephen Petrou is 1457845190. It was assigned to this individual provider in the NPPES registry on June 17, 2018.

Where is Stephen Petrou located?

Stephen Petrou practices at PO Box 1266, Kailua, HI 96734. The listed phone number is (808) 261-3326.

What is Stephen Petrou's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Stephen Petrou enrolled in Medicare?

Yes. Stephen Petrou 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.

Which organization bills Medicare for Stephen Petrou's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Stephen Petrou reassigns Medicare benefits to Hawaii Emergency Physicians Associated Inc (Kailua, HI). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Stephen Petrou's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Stephen Petrou affiliated with any hospitals?

According to CMS data, Stephen Petrou is affiliated with Kona Community Hospital and North Hawaii Community Hospital, Inc.

When was this NPI record last updated?

The NPPES record for Stephen Petrou was last updated on June 28, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.