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NANCY SIYANG MANGLALLAN-YANG MD
NPI 1083238406
Obstetrics & Gynecology in Kahului, HI

Active since June 01, 2020PECOS EnrolledAccepts Medicare Assignment
100 HOOKELE ST STE 910, KAHULUI, HI 96732(808) 686-4690(808) 686-2127 Get Directions Write a Review

NPPES record last updated: October 2, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Aug 14, 2024, Jul 31, 2024, Jun 1, 2020 (3 updates tracked since 2020).

About Nancy Siyang Manglallan-yang Md NPPES

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

NANCY SIYANG MANGLALLAN-YANG MD (NPI 1083238406) is an individual obstetrics & gynecology provider in Kahului, Hawaii, licensed in Hawaii (MD-25818) and active in the NPI registry since June 2020. She is enrolled in Medicare PECOS, maintains a secondary practice location in Wailuku, and is a graduate of University Of Minnesota Medical School (2020).

NPPES Registry Identity

NPI1083238406
Entity TypeIndividualFemale
Primary Taxonomy207V00000X
Provider Legal NameNANCY SIYANG MANGLALLAN-YANGCredential: MD
Location Address100 HOOKELE ST STE 910Kahului, HI 96732-3548
Mailing Address100 Hookele St Ste 910Kahului, HI 96732-3548 · (808) 686-4690 · Fax (808) 686-2127
Phone(808) 686-4690
Fax(808) 686-2127
Sole ProprietorNo
Medical School CMSUniversity Of Minnesota Medical SchoolGraduated 2020
Enumeration DateJune 1, 2020
Last NPPES UpdateOctober 2, 20253 updates tracked since enumeration
NPPES CertifiedOctober 2, 2025
✔ NPI 1083238406 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License✔ Licensed in HI · MD-25818
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
Also ListedFamily Medicine · Addiction MedicineTaxonomy 207QA0401X · License 61521287 (WA), MD-25818 (HI)
100 HOOKELE ST STE 910, Kahului, HI 96732
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Other Names 1

Former Name (1)Nancy Yang Md

Secondary Practice Location 1

Location 1221 Mahalani StWailuku, HI 96793-2526 · Phone (808) 244-9056

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Premera Blue Cross Blue Shield of Alaska.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Nancy Siyang Manglallan-yang 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 ID6507308145
PECOS Enrollment IDI20251029001514
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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 96732 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
$74.92 typical visit price
range $20.09 – $147.56
Typical copayment $18.73 (range $5.02 – $36.89)
Most-billed visit code 99213
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

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

DR. HOLLY BULLOCK MD, MPH
Obstetrics & Gynecology
100 HOOKELE ST STE 910
KAHULUI, HI 96732
Maui County (808) 686-4690

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 Nancy Manglallan-yang's NPI number?

The NPI number for Nancy Manglallan-yang is 1083238406. It was assigned to this individual provider in the NPPES registry on June 1, 2020. The provider is also known as Nancy Yang MD.

Where is Nancy Manglallan-yang located?

Nancy Manglallan-yang practices at 100 Hookele St Ste 910, Kahului, HI 96732. The listed phone number is (808) 686-4690.

What is Nancy Manglallan-yang's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Nancy Manglallan-yang enrolled in Medicare?

Yes. Nancy Manglallan-yang 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.

What insurance does Nancy Manglallan-yang accept?

Health plans from Premera Blue Cross Blue Shield of Alaska list Nancy Manglallan-yang 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.

When was this NPI record last updated?

The NPPES record for Nancy Manglallan-yang was last updated on October 2, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months 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.