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RON D AH LOY MD INC
NPI 1942323431
Internal Medicine - Gastroenterology in Kailua Kona, HI

Active since April 09, 2007
75-5591 PALANI RD, KAILUA KONA, HI 96740(808) 887-0600(808) 887-6699 Get Directions Write a Review

NPPES record last updated: October 15, 2007. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Ron D Ah Loy Md Inc NPPES

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

RON D AH LOY MD INC (NPI 1942323431) is a healthcare organization registered as a gastroenterology in Kailua Kona, Hawaii and active in the NPI registry since April 2007. The organization lists Ron D Ah Loy, Owner, as its authorized official.

NPPES Registry Identity

NPI1942323431
Entity TypeOrganization
Primary Taxonomy207RG0100X
Legal Business NameRON D AH LOY MD INC
Location Address75-5591 PALANI RDKailua Kona, HI 96740-3631
Mailing Address64-5188 Kinohou StKamuela, HI 96743-8409 · (808) 887-0600 · Fax (808) 887-6699
Phone(808) 887-0600
Fax(808) 887-6699
Organization SubpartNo
Authorized OfficialRon D Ah LoyOwner · (808) 887-0600
Enumeration DateApril 9, 2007
Last NPPES UpdateOctober 15, 2007
✔ NPI 1942323431 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
75-5591 PALANI RD, Kailua Kona, HI 96740
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Other Identifiers 2

Medicaid01314401HI
Medicare PINH54709HI

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

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ron D Ah Loy Md Inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Ron D Ah Loy MD Inc, which bills Medicare for the services this clinician delivers.

Clinician (1)

Ronald Ahloy, M.D.
Gastroenterology
NPI 1598795403
64-5188 KINOHOU ST
Kamuela, HI 96743
(808) 887-0600
✔ PECOS✔ Accepts Medicare33 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 Ron D Ah Loy MD Inc's NPI number?

The NPI number for Ron D Ah Loy MD Inc is 1942323431. It was assigned to this organization in the NPPES registry on April 9, 2007.

Where is Ron D Ah Loy MD Inc located?

Ron D Ah Loy MD Inc is located at 75-5591 Palani Rd, Kailua Kona, HI 96740. The listed phone number is (808) 887-0600.

What is Ron D Ah Loy MD Inc's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Ron D Ah Loy MD Inc enrolled in Medicare?

Yes. Ron D Ah Loy MD Inc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Ron D Ah Loy MD Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Gastroenterology) reassigns their Medicare billing to Ron D Ah Loy MD Inc. 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. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Ron D Ah Loy MD Inc was last updated on October 15, 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.