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DR. ADAM JOSEPH GRATZ D.O.
NPI 1598895351
General Practice in Hawi, HI

Active since March 07, 2007PECOS Enrolled
55-515 HAWI RD, HAWI, HI 96719(808) 960-3311(866) 263-1889 Get Directions Write a Review

NPPES record last updated: March 7, 2023. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Dr. Adam Joseph Gratz D.o. NPPES

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

DR. ADAM JOSEPH GRATZ D.O. (NPI 1598895351) is an individual general practice provider in Hawi, Hawaii, licensed in Hawaii (DOS-1090) and active in the NPI registry since March 2007. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1598895351
Entity TypeIndividualMale
Primary Taxonomy208D00000X
Provider Legal NameDR. ADAM JOSEPH GRATZCredential: D.O.
Location Address55-515 HAWI RDHawi, HI 96719-9997
Mailing AddressPo Box 820Kapaau, HI 96755-0820 · (808) 854-1684
Phone(808) 960-3311
Fax(866) 263-1889
Sole ProprietorYes
Enumeration DateMarch 7, 2007
Last NPPES UpdateMarch 7, 2023
✔ NPI 1598895351 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyGeneral PracticeAllopathic & Osteopathic Physicians
Taxonomy Code208D00000X
License✔ Licensed in HI · DOS-1090
Definition
A physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions. Source: National Uniform Claim Committee
55-515 HAWI RD, Hawi, HI 96719
Open in Google Maps ↗

Other Identifiers 1

OtherE07702HI · Certificate Of Registration For Controlled Substances

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Adam Joseph Gratz D.o. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Reassignment

Medicare enrollment records show Adam Gratz reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Duerler, Inc.
18 mi
Family Medicine
64-1032 MAMALAHOA HWY, SUITE 306
Kamuela, HI 96743
  • Reassigned Medicare billing, Hawaii enrollment
  • 16 clinicians in this Medicare group
NPI 1376837997 (808) 769-5010

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 Adam Gratz's NPI number?

The NPI number for Adam Gratz is 1598895351. It was assigned to this individual provider in the NPPES registry on March 7, 2007.

Where is Adam Gratz located?

Adam Gratz practices at 55-515 Hawi Rd, Hawi, HI 96719. The listed phone number is (808) 960-3311.

What is Adam Gratz's specialty?

The primary specialty registered for this NPI is General Practice with taxonomy code 208D00000X.

Is Adam Gratz enrolled in Medicare?

Yes. Adam Gratz is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Adam Gratz's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Adam Gratz reassigns Medicare benefits to Duerler, Inc. (Kamuela, HI). The 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 Adam Gratz's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Adam Gratz was last updated on March 7, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.