Gregory Kazuo Kobayashi, D.D.S.
General Practice Dentistry · Hilo, HI
Gregory Kazuo Kobayashi, D.D.S. is a general practice dentistry with a practice address in Hilo, Hawaii, and NPI 1205948346, issued on Aug 31, 2006. Check the license (Hawaii 961, as entered in NPPES) with the Hawaii board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Gregory Kazuo Kobayashi
- Credential
- D.D.S.
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License number
- 961 HI
Self-reported in NPPES; status is on the state search - Practice location
- 280 Ponahawai St, Hilo, HI 96720
- Phone
- (808) 935-4845
- Enumerated
- Aug 31, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (808) 969-9413
- Entity
- Type 1 · individual
8 nearest general practice dentistry records → All 692 in Hawaii → Look up another NPI →
Also registered at 280 Ponahawai St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Harold Goya, DDSOrthodontics and Dentofacial Orthopedics Dentistry1518036938
- Milont Murasaki, DDSGeneral Practice Dentistry1336146646
Verify Gregory Kazuo Kobayashi in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Hawaii board licenses this profession
Search for license 961Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
75% fewer Medicare Part D claims than the average general practice dentistry in 2024
21 Medicare Part D claims for 19 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D.
Most prescribed
- Amoxicillin15 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $62.50
1 payment: food and beverage; the largest payer was Patterson Companies, Inc. The 41,669 providers of this specialty with any payment received $597.01 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Gregory Kazuo Kobayashi among 692 general practice dentistry records in Hawaii
Gregory Kazuo Kobayashi, D.D.S. is one of 692 general practice dentistry records with a practice address in Hawaii. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 64% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2007 · 77% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223G0001X and a Hawaii practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
43 general practice dentistry records list a practice address in Hilo
They are 43 of the 1,758 NPPES records with a practice address in Hilo, and 692 general practice dentistry records in Hawaii.
All 692 in Hawaii → Every provider in Hilo → General Practice Dentistry nationwide →
The 8 general practice dentistry records with the nearest ZIP codes
- Harvey Chong, D.D.S.Hilo, HI 967201841269347
- Milton Fujiuchi, DDSHilo, HI 967201396758884
- Wayne Leong, D.D.S.Hilo, HI 967201417952383
- Jonathan Mah, D.D.S.Hilo, HI 967201699781872
- Myrtle Miyamura, DMDHilo, HI 967201902845514
- Milont Murasaki, DDSHilo, HI 967201336146646
- Donn Ouye, D.D.S.Hilo, HI 967201225046618
- Steven Sakata, DMDHilo, HI 967201710096771
Common questions
What is Gregory Kazuo Kobayashi, D.D.S.'s NPI number?
Gregory Kazuo Kobayashi, D.D.S.'s National Provider Identifier (NPI) is 1205948346, issued on Aug 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Kazuo Kobayashi, D.D.S. located?
The NPPES record lists a practice address at 280 Ponahawai St, Hilo, HI, 96720. Phone: (808) 935-4845. Providers update this record themselves, so call before visiting.
How can I verify Gregory Kazuo Kobayashi, D.D.S.'s license?
NPPES lists Hawaii license number 961, as entered by the provider. Search the Hawaii board that licenses this profession; the NPPES record confirms identity only.
How much does Gregory Kazuo Kobayashi, D.D.S. prescribe under Medicare Part D?
In 2024, Gregory Kazuo Kobayashi, D.D.S. had 21 Medicare Part D claims for 19 beneficiaries; the average among general practice dentistry prescribers was 83. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.