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HAWAII NEPHROLOGISTS LLC
NPI 1871909549
Internal Medicine - Nephrology in Waipahu, HI

Active since July 02, 2014
94-229 WAIPAHU DEPOT ST STE 101, WAIPAHU, HI 96797(808) 206-9849(808) 206-9850 Get Directions Write a Review

NPPES record last updated: July 24, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jul 24, 2024, Feb 28, 2023, Jun 10, 2022 and 4 more (7 updates tracked since 2018).

About Hawaii Nephrologists Llc NPPES

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

HAWAII NEPHROLOGISTS LLC (NPI 1871909549) is a healthcare organization registered as a nephrology in Waipahu, Hawaii and active in the NPI registry since July 2014. The organization maintains a secondary practice location in Kailua Kona and lists Ryan Valle, President, as its authorized official.

NPPES Registry Identity

NPI1871909549
Entity TypeOrganization
Primary Taxonomy207RN0300X
Legal Business NameHAWAII NEPHROLOGISTS LLC
Location Address94-229 WAIPAHU DEPOT ST STE 101Waipahu, HI 96797-3032
Mailing Address94-229 Waipahu Depot St Ste 101Waipahu, HI 96797-3032 · (808) 206-9849 · Fax (808) 206-9850
Phone(808) 206-9849
Fax(808) 206-9850
Organization SubpartNo
Authorized OfficialRyan VallePresident · (781) 699-9362
Enumeration DateJuly 2, 2014
Last NPPES UpdateJuly 24, 20247 updates tracked since enumeration
NPPES CertifiedJuly 24, 2024
✔ NPI 1871909549 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
Definition
An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.
94-229 WAIPAHU DEPOT ST STE 101, Waipahu, HI 96797
Open in Google Maps ↗

Secondary Practice Location 1

Location 175-184 Hualalai Rd Ste 202Kailua Kona, HI 96740-1719 · Phone (808) 329-8251 · Fax (808) 334-0130

Other Identifiers 1

Medicaid798621HI

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Accepted Insurance

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

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Hawaii Nephrologists Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

9

Medicare enrollment records show 9 clinicians reassign Medicare billing to Hawaii Nephrologists LLC, which bills Medicare for the services they deliver. Of these, 7 practice at this address. They are listed nearest first.

Clinicians, nearest first (9)

Ryan Argyros, FNP
Nurse Practitioner
NPI 1750933669
94-229 WAIPAHU DEPOT ST STE 101
Waipahu, HI 96797
(808) 206-9849
✔ PECOS✔ Accepts MedicareSame address
Hannah Bernadsky, FNP-C
Nurse Practitioner
NPI 1902532039
94-229 WAIPAHU DEPOT ST STE 101
Waipahu, HI 96797
(808) 206-9849
✔ PECOS✔ Accepts MedicareSame address
Rahul Bhaskar, MD
Nephrology
NPI 1356904015
94-229 WAIPAHU DEPOT ST STE 101
Waipahu, HI 96797
(808) 206-9849
✔ PECOS✔ Accepts MedicareSame address
Alex Carlos, MD
Nephrology
NPI 1770147225
94-229 WAIPAHU DEPOT ST STE 101
Waipahu, HI 96797
(808) 206-9849
✔ PECOS✔ Accepts MedicareSame address
Rafal Ciecierski, MD
Nephrology
NPI 1093916595
94-229 WAIPAHU DEPOT ST STE 101
Waipahu, HI 96797
(808) 206-9849
✔ PECOS✔ Accepts MedicareSame address
Calvin Henderson, MD
Nephrology
NPI 1144806969
94-229 WAIPAHU DEPOT ST STE 101
Waipahu, HI 96797
(808) 206-9849
✔ PECOSSame address
Valerie Tan, M.D.
Nephrology
NPI 1326371832
94-229 WAIPAHU DEPOT ST STE 101
Waipahu, HI 96797
(808) 206-9849
✔ PECOS✔ Accepts MedicareSame address
Wei Boon Ooi, M.D.
Nephrology
NPI 1124259676
75-184 HUALALAI RD STE 202
Kailua Kona, HI 96740
(808) 329-8251
✔ PECOS✔ Accepts Medicare178 mi
Megan Sedig, DNP
Nurse Practitioner
NPI 1649964206
75-184 HUALALAI RD STE 202
Kailua Kona, HI 96740
(808) 329-8251
✔ PECOS✔ Accepts Medicare178 mi

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

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 Hawaii Nephrologists LLC's NPI number?

The NPI number for Hawaii Nephrologists LLC is 1871909549. It was assigned to this organization in the NPPES registry on July 2, 2014.

Where is Hawaii Nephrologists LLC located?

Hawaii Nephrologists LLC is located at 94-229 Waipahu Depot St Ste 101, Waipahu, HI 96797. The listed phone number is (808) 206-9849.

What is Hawaii Nephrologists LLC's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Is Hawaii Nephrologists LLC enrolled in Medicare?

Yes. Hawaii Nephrologists LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Hawaii Nephrologists LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 9 clinicians in 2 Medicare specialties reassign their Medicare billing to Hawaii Nephrologists LLC. A 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 the clinician's services. The largest specialties are Nephrology (6) and Nurse Practitioner (3). Of these, 7 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Hawaii Nephrologists LLC accept?

Health plans from HMSA list Hawaii Nephrologists LLC 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 Hawaii Nephrologists LLC was last updated on July 24, 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.