Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

JOSEPH W. STEWART MD
NPI 1346601267
Family Medicine in Kaneohe, HI

Q: What is Joseph Stewart's NPI number?

The NPI number for Joseph Stewart is 1346601267. It was assigned to this individual provider in the NPPES registry on March 20, 2016.

Q: What is Joseph Stewart's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Q: When was this NPI record last updated?

The NPPES record for Joseph Stewart was last updated on August 24, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 57 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.

Active since March 20, 2016PECOS EnrolledAccepts Medicare Assignment

46-056 KAMEHAMEHA HWY STE 221, KANEOHE, HI 96744(808) 233-6200(808) 233-6255 Get Directions Write a Review

NPPES record last updated: August 24, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Aug 24, 2026, Nov 23, 2021, Feb 19, 2021 and 3 more (6 updates tracked since 2016).

On this page

About Joseph W. Stewart Md NPPES

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

JOSEPH W. STEWART MD (NPI 1346601267) is an individual family medicine provider in Kaneohe, Hawaii, licensed in Hawaii (MD-22335) and active in the NPI registry since March 2016. He is enrolled in Medicare PECOS, is affiliated with Adventist Health Castle, and is a graduate of University Of Rochester School Of Medicine And Dentistry (2016).

NPPES Registry Identity

NPI1346601267

Entity TypeIndividualMale

Primary Taxonomy207Q00000X

Provider Legal NameJOSEPH W. STEWARTCredential: MD

Location Address46-056 KAMEHAMEHA HWY STE 221Kaneohe, HI 96744-6706

Mailing Address46-056 Kamehameha Hwy Ste 221Kaneohe, HI 96744-6706 · (808) 233-6200 · Fax (808) 233-6255

Phone(808) 233-6200

Fax(808) 233-6255

Sole ProprietorNo

Medical School CMSUniversity Of Rochester School Of Medicine And DentistryGraduated 2016

Enumeration DateMarch 20, 2016

Last NPPES UpdateAugust 24, 20266 updates tracked since enumeration

NPPES CertifiedAugust 24, 2026

✔ NPI 1346601267 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207Q00000X

License✔ Licensed in HI · MD-22335

Definition

Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.

46-056 KAMEHAMEHA HWY STE 221, Kaneohe, HI 96744

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Accepted Insurance

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

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

Joseph W. Stewart 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 ID3971854209

PECOS Enrollment IDI20220908000988

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 Joseph Stewart reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Straub Clinic & Hospital

8.7 mi

Multi-Specialty

888 S KING ST
Honolulu, HI 96813

Reassigned Medicare billing, Hawaii enrollment
664 clinicians in this Medicare group

NPI 1457306508 (808) 522-4000

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.

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.

384 services169 patients

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.

96 services71 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.

20 services19 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

17 services17 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

14 services13 patients

Hospital Affiliations CMS Care Compare 4

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

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

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

Kapiolani Medical Center For Women & Children

Childrens · Honolulu, HI

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 96744 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.

Other Providers at the Same Location NPPES 3

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

ALDA LAM MD

Pediatrics

46-056 KAMEHAMEHA HWY STE 221
KANEOHE, HI 96744

Honolulu County (808) 233-6200

JUSTIN MITSUO HINO M.D.

Pediatrics

46-056 KAMEHAMEHA HWY STE 221
KANEOHE, HI 96744

Honolulu County (808) 233-6200

ARDI HERMAWAN APRN

Nurse Practitioner (Primary Care)

46-056 KAMEHAMEHA HWY STE 221
KANEOHE, HI 96744

Honolulu County (808) 233-6200

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 Joseph Stewart's NPI number?

The NPI number for Joseph Stewart is 1346601267. It was assigned to this individual provider in the NPPES registry on March 20, 2016.

Where is Joseph Stewart located?

Joseph Stewart practices at 46-056 Kamehameha Hwy Ste 221, Kaneohe, HI 96744. The listed phone number is (808) 233-6200.

What is Joseph Stewart's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Joseph Stewart enrolled in Medicare?

Yes. Joseph Stewart 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 Joseph Stewart's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Joseph Stewart reassigns Medicare benefits to Straub Clinic & Hospital (Honolulu, 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 Joseph Stewart's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Joseph Stewart accept?

Health plans from HMSA and Imperial Insurance Companies, Inc. list Joseph Stewart 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 Joseph Stewart affiliated with any hospitals?

According to CMS data, Joseph Stewart is affiliated with Adventist Health Castle, Straub Clinic And Hospital, Pali Momi Medical Center and Kapiolani Medical Center For Women & Children.

When was this NPI record last updated?

The NPPES record for Joseph Stewart was last updated on August 24, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 57 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.