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CHUNG-HUAN JOHNNY SUN M.D.
NPI 1912326182
Psychiatry & Neurology - Neurocritical Care in Honolulu, HI

Active since April 15, 2014PECOS EnrolledAccepts Medicare Assignment
1301 PUNCHBOWL ST, HONOLULU, HI 96813(808) 691-1000 Get Directions Write a Review

NPPES record last updated: May 13, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: May 13, 2021, Jul 2, 2020, Dec 10, 2018 (3 updates tracked since 2018).

About Chung-huan Johnny Sun M.d. NPPES

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

CHUNG-HUAN JOHNNY SUN M.D. (NPI 1912326182) is an individual neurocritical care provider in Honolulu, Hawaii, licensed in Hawaii (MD-21173) and active in the NPI registry since April 2014. He is enrolled in Medicare PECOS, is affiliated with The Queens Medical Center, and is a graduate of Emory University School Of Medicine (2014).

NPPES Registry Identity

NPI1912326182
Entity TypeIndividualMale
Primary Taxonomy2084A2900X
Provider Legal NameCHUNG-HUAN JOHNNY SUNCredential: M.D.
Location Address1301 PUNCHBOWL STHonolulu, HI 96813-2499
Mailing Address1301 Punchbowl StHonolulu, HI 96813-2402 · (415) 353-8897
Phone(808) 691-1000
Sole ProprietorYes
Medical School CMSEmory University School Of MedicineGraduated 2014
Enumeration DateApril 15, 2014
Last NPPES UpdateMay 13, 20213 updates tracked since enumeration
NPPES CertifiedMay 13, 2021
✔ NPI 1912326182 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPsychiatry & Neurology · Neurocritical CareAllopathic & Osteopathic Physicians
Taxonomy Code2084A2900X
License✔ Licensed in HI · MD-21173
Definition
The medical subspecialty of Neurocritical Care is devoted to the comprehensive, multisystem care of the critically-ill neurological patient. Like other intensivists, the neurointensivist generally assumes the primary role for coordinating the care of his or her patients in the ICU, both the neurological and medical management of the patient. They may also provide consultative services for these patients as requested within the health system.
Also ListedPsychiatry & Neurology · NeurologyTaxonomy 2084N0400X · License A153846 (CA)
1301 PUNCHBOWL ST, Honolulu, HI 96813
Open in Google Maps ↗

Other Identifiers 1

Medicaid000151HI

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

Chung-huan Johnny Sun 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 ID6800150053
PECOS Enrollment IDI20200708000777
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 Reassignments

4

Medicare enrollment records show Chung-huan Sun reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Queens University Medical Group
Same address
Multi-Specialty
1301 PUNCHBOWL ST
Honolulu, HI 96813
  • Reassigned Medicare billing, Hawaii enrollment
  • 859 clinicians in this Medicare group
NPI 1891441382 (808) 691-1000
The Queen's Medical Center
Same address
General Acute Care Hospital
1301 PUNCHBOWL ST
Honolulu, HI 96813
  • Reassigned Medicare billing, Hawaii enrollment
  • Medicare enrollment name: The Queens Medical Center
  • 809 clinicians in this Medicare group
NPI 1487693586 (808) 538-9011
Ucsf Medical Group Business Services
2,394 mi
Internal Medicine
400 PARNASSUS AVE
San Francisco, CA 94122
  • Reassigned Medicare billing, California enrollment
  • 5,544 clinicians in this Medicare group
NPI 1477624104 (415) 353-2808
University Of California Sfgh Medical Group
2,397 mi
Family Medicine
1001 POTRERO AVE, BLDG 80 WARD 83 RM 320
San Francisco, CA 94110
  • Reassigned Medicare billing, California enrollment
  • 842 clinicians in this Medicare group
NPI 1174598296 (628) 206-8610

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 2

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.

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.
184 services77 patients
Telehealth consultation, critical care, initial , physicians typically spend 60 minutes communicating with the patient and providers via telehealth G0508
A telehealth consultation for critical care is a virtual meeting with a physician, typically lasting 60 minutes. Here, the doctor assesses your health condition, provides guidance, and communicates with other care providers, all through digital platforms. It's a safe, convenient way to receive critical care.
22 services22 patients

Hospital Affiliations CMS Care Compare

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

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.

NISHAL BRAHMBHATT MD
Internal Medicine (Critical Care Medicine)
1301 PUNCHBOWL ST
HONOLULU, HI 96813
Honolulu County (808) 691-1000
DR. THOMAS JON UYEHARA WONG MD
Internal Medicine (Pulmonary Disease)
1301 PUNCHBOWL ST
HONOLULU, HI 96813
Honolulu County (808) 691-1000
IMTIAZ HUSSAIN BANGASH MD
Hospitalist
1301 PUNCHBOWL ST
HONOLULU, HI 96813
Honolulu County (808) 691-1000
CHRISTINE TRANG WARNER PA
Physician Assistant
1301 PUNCHBOWL ST
HONOLULU, HI 96813
Honolulu County (808) 597-8799
QUEENS MEDICAL CENTER
Psychiatric Hospital
1301 PUNCHBOWL ST
HONOLULU, HI 96813
Honolulu County (808) 537-7878
NOOR SHAFIE LE, COE
Specialist
1301 PUNCHBOWL ST
HONOLULU, HI 96813
Honolulu County (808) 783-4088
JONATHAN KAMINAKA
Physical Therapist
1301 PUNCHBOWL ST
HONOLULU, HI 96813
Honolulu County (808) 691-1000
DR. ISAAC WENTZ MD
Psychiatry & Neurology (Psychiatry)
1301 PUNCHBOWL ST
HONOLULU, HI 96813
Honolulu County (808) 691-1000

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 Chung-huan Sun's NPI number?

The NPI number for Chung-huan Sun is 1912326182. It was assigned to this individual provider in the NPPES registry on April 15, 2014.

Where is Chung-huan Sun located?

Chung-huan Sun practices at 1301 Punchbowl St, Honolulu, HI 96813. The listed phone number is (808) 691-1000.

What is Chung-huan Sun's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurocritical Care, with taxonomy code 2084A2900X.

Is Chung-huan Sun enrolled in Medicare?

Yes. Chung-huan Sun 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 organizations bill Medicare for Chung-huan Sun's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Chung-huan Sun reassigns Medicare benefits to 4 organizations: Queens University Medical Group (Honolulu, HI), The Queen's Medical Center (Honolulu, HI), Ucsf Medical Group Business Services (San Francisco, CA) and University Of California Sfgh Medical Group (San Francisco, CA). Each 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 Chung-huan Sun's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Chung-huan Sun affiliated with any hospitals?

According to CMS data, Chung-huan Sun is affiliated with The Queens Medical Center.

When was this NPI record last updated?

The NPPES record for Chung-huan Sun was last updated on May 13, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.