Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Douglas Dung Do, M.D, M.P.H

Internal Medicine Physician in Hilo, HI · enumerated 2010.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1265732622

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Registry record

Entity type Individual (Type 1)

Name Dr. Douglas Dung Do

Credential M.D, M.P.H

Sex Male

Practice address Hilo, HI, 96720

Phone (925) 487-8947

Enumeration date Nov 1, 2010

Last updated in NPPES Sep 21, 2023

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License A114741 (CA) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License MD16142 (HI) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

How do I verify Douglas Do's NPI record?

Cross-check NPI 1265732622 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1265732622 active?

Yes, as of the latest NPPES snapshot, NPI 1265732622 is active (record last updated 2023-09-21).

Other providers at this practice address

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Ninette Hart Anesthesiology Physician · Hilo, HI NPI 1689672388 Steven Garon Anesthesiology Physician · Hilo, HI NPI 1083668701 Jon Martell Internal Medicine Physician · Hilo, HI NPI 1033165469 Hilo Medical Center Anesthesia Certified Registered Nurse Anesthetist · Hilo, HI NPI 1346277621 Kay Mcgirr Certified Registered Nurse Anesthetist · Hilo, HI NPI 1154358430 Torrey Lynch Anesthesiology Physician · Hilo, HI NPI 1861422032 Jerry Gray Emergency Medicine Physician · Hilo, HI NPI 1881600732 Gayle Crosley Adult Health Nurse Practitioner · Hilo, HI NPI 1316030976

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-09-21.