Individual provider

Robert Gries, M.D.

Geriatric Medicine (Family Medicine) Physician Medicare enrolled

Robert Gries, M.D. is a Geriatric Medicine (Family Medicine) Physician in Honolulu, HI, registered under NPI 1669425906. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.

Getting there

The practice address on file is 6163 SUMMER ST, Honolulu, HI 96821. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.

6163 SUMMER ST, Honolulu, HI 96821 Open in Google Maps →

Credentials and Medicare

State licence
LicenceStateSpecialty
MD12058 HI Geriatric Medicine (Family Medicine)… primary

This provider holds licence MD12058 issued in HI. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.

Medicare (PECOS)
Status
Approved
Provider type
Practitioner - Geriatric Medicine
PAC ID
1355322454
Enrollment ID
I20040525001564

Medicare enrolment is recorded as approved under the provider type Practitioner - Geriatric Medicine. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.

What Geriatric Medicine covers

A family medicine physician with special knowledge of the aging process and special skills in the diagnostic, therapeutic, preventive and rehabilitative aspects of illness in the elderly. This specialist cares for geriatric patients in the patient's home, the office, long-term care settings such as nursing homes, and the hospital. NUCC Health Care Provider Taxonomy, code 207QG0300X
Allopathic & Osteopathic Physicians Family Medicine Geriatric Medicine

The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.

Full NPPES record

An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.

NPI1669425906 valid check digit
Entity typeIndividual (NPI-1)
Enumeration dateMay 18, 2006
Last updatedOct 20, 2021
StatusActive
Sole proprietorYes
CredentialM.D.
Practice address 6163 SUMMER ST
Honolulu, HI 96821
(808) 393-3230
Fax (808) 356-1335
Mailing address PO BOX 700309
Kapolei, HI 96709
Other identifiers 54082400 · Medicaid (HI)
The last update on file is Oct 20, 2021. Providers are only required to update NPPES when their information changes, so an older date does not necessarily mean the details are wrong — but it is worth a quick call before you travel.

Number check

1669425906 passes the NPI check digit test The final digit 6 matches the value computed from the first nine digits, so this is a well-formed NPI.
How the check works, step by step

Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.

Digit 8 0 8 4 0 1 6 6 9 4 2 5 9 0
Doubled? ×2 ×2 ×2 ×2 ×2 ×2 ×2
Value 8 0 8 8 0 2 6 3 9 8 2 1 9 0

Sum = 64 · next multiple of 10 = 70 · check digit = 6 · actual last digit = 6

A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.

Common questions

What is NPI number 1669425906?
NPI 1669425906 is the National Provider Identifier assigned to Robert Gries, M.D. in Honolulu, HI. It is a 10-digit number issued by the Centers for Medicare & Medicaid Services and used on claims, referrals, and prescriptions to identify the provider.
What does Geriatric Medicine cover?
A family medicine physician with special knowledge of the aging process and special skills in the diagnostic, therapeutic, preventive and rehabilitative aspects of illness in the elderly. This specialist cares for geriatric patients in the patient's home, the office, long-term care settings such as nursing homes, and…
How do I contact Robert Gries, M.D.?
The phone number on file with NPPES is (808) 393-3230, last updated Oct 20, 2021. Because NPPES is only updated when a provider files a change, call ahead to confirm the number and the current practice address before visiting.
Does Robert Gries, M.D. accept Medicare?
This NPI has an approved Medicare enrolment in PECOS, which means the provider is enrolled to bill Medicare. Enrolment does not guarantee they are accepting new Medicare patients — verify directly with the office.
Is NPI 1669425906 a valid number?
Yes. 1669425906 passes the Luhn check digit validation that CMS uses for NPI numbers, and it resolves to an active record in the registry.
How to use this page. Everything here comes from public federal records. Tips Health does not verify quality of care, confirm that a licence is currently active, or check malpractice history, and accepts no fees for placement. A listing is not a recommendation. Verify independently before seeking care.