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ANTHONY PAUL SIU M.D.
NPI 1629166368
Internal Medicine in Honolulu, HI

Active since October 10, 2006PECOS EnrolledAccepts Medicare Assignment
321 N KUAKINI ST, SUITE #201, HONOLULU, HI 96817(808) 523-8611 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Anthony Paul Siu M.d. NPPES

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

ANTHONY PAUL SIU M.D. (NPI 1629166368) is an individual internal medicine provider in Honolulu, Hawaii, licensed in Hawaii (MD-8168) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS, is affiliated with The Queens Medical Center, and is a graduate of University Of Hawaii John A. Burns School Of Medicine (1991).

NPPES Registry Identity

NPI1629166368
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameANTHONY PAUL SIUCredential: M.D.
Location Address321 N KUAKINI ST, SUITE #201Honolulu, HI 96817-2364
Mailing Address321 N Kuakini St, Suite #201Honolulu, HI 96817-2364 · (808) 523-8611
Phone(808) 523-8611
Sole ProprietorNo
Medical School CMSUniversity Of Hawaii John A. Burns School Of MedicineGraduated 1991
Enumeration DateOctober 10, 2006
Last NPPES UpdateJuly 8, 2007
✔ NPI 1629166368 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 · MD-8168
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.
321 N KUAKINI ST, Honolulu, HI 96817
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Other Identifiers 3

Medicare UPINF80374
Medicaid03802601HI
Medicare ID-Type UnspecifiedBDWJL

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include HMSA.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

Anthony Paul Siu 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 ID1456305606
PECOS Enrollment IDI20100331000159
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

3

Medicare enrollment records show Anthony Siu reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Queen Emma Clinics
0.9 mi
Clinic/Center
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 1528097094 (808) 547-4970
Queens University Medical Group
1.0 mi
Multi-Specialty
1301 PUNCHBOWL ST
Honolulu, HI 96813
  • Reassigned Medicare billing, Hawaii enrollment
  • 859 clinicians in this Medicare group
NPI 1891441382 (808) 691-1000
Primary Care Physician Enterprise LLC
11 mi
Clinic/Center
91-6390 KAPOLEI PKWY
Ewa Beach, HI 96706
  • Reassigned Medicare billing, Hawaii enrollment
  • 40 clinicians in this Medicare group
NPI 1164054763 (808) 691-4600

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 8

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.
462 services218 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.
137 services137 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.
84 services60 patients
Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use 90677
The Pneumococcal Conjugate Vaccine (PCV20) is a shot given to protect against 20 types of bacteria that can cause serious infections like pneumonia and meningitis. It's administered through a muscle, usually in the arm. It's important for overall health.
48 services48 patients
Administration of pneumococcal vaccine G0009
The pneumococcal vaccine helps protect against pneumococcal bacteria, which can cause severe infections like pneumonia and meningitis. The vaccine is given as an injection, typically in the arm. It's recommended for infants, older adults, and those with certain health conditions.
33 services33 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.
29 services27 patients

Hospital Affiliations CMS Care Compare 4

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

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
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 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
$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.

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.

EMILY DIEP, M.D., LLC
Internal Medicine
321 N KUAKINI ST, SUITE NUMBER 715
HONOLULU, HI 96817
Honolulu County (808) 523-6461
ELIOT NOBUO TOMOMITSU M.D.
Pediatrics
321 N KUAKINI ST, SUITE #201
HONOLULU, HI 96817
Honolulu County (808) 523-8611
BARON K. F. CHING M.D.
Internal Medicine
321 N KUAKINI ST, 708
HONOLULU, HI 96817
Honolulu County (808) 536-7791
DR. STUART SUGIHARA M.D.
Internal Medicine (Pulmonary Disease)
321 N KUAKINI ST, STE 502
HONOLULU, HI 96817
Honolulu County (808) 531-9753
CHAELYN CULLEN
Nurse Practitioner
321 N KUAKINI ST
HONOLULU, HI 96817
Honolulu County (808) 772-4743
DIANE M. SAKAI MD
Internal Medicine
321 N KUAKINI ST, SUITE 514
HONOLULU, HI 96817
Honolulu County (808) 533-4274
JOSEPH K KOO MD
Internal Medicine (Infectious Disease)
321 N KUAKINI ST
HONOLULU, HI 96817
Honolulu County (808) 523-6461
DR. OSAMU FUKUYAMA M.D.
Internal Medicine (Cardiovascular Disease)
321 N KUAKINI ST, SUITE 504
HONOLULU, HI 96817
Honolulu County (808) 538-1125

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 Anthony Siu's NPI number?

The NPI number for Anthony Siu is 1629166368. It was assigned to this individual provider in the NPPES registry on October 10, 2006.

Where is Anthony Siu located?

Anthony Siu practices at 321 N Kuakini St Suite #201, Honolulu, HI 96817. The listed phone number is (808) 523-8611.

What is Anthony Siu's specialty?

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

Is Anthony Siu enrolled in Medicare?

Yes. Anthony Siu 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 Anthony Siu's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Anthony Siu reassigns Medicare benefits to 3 organizations: Queen Emma Clinics (Honolulu, HI), Queens University Medical Group (Honolulu, HI) and Primary Care Physician Enterprise LLC (Ewa Beach, HI). 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 Anthony Siu's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Anthony Siu accept?

Health plans from HMSA list Anthony Siu 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 Anthony Siu affiliated with any hospitals?

According to CMS data, Anthony Siu is affiliated with The Queens Medical Center, Kuakini Medical Center, Straub Clinic And Hospital and Kapiolani Medical Center For Women & Children.

When was this NPI record last updated?

The NPPES record for Anthony Siu was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.