Ken R. Clayton, D.O.
Obstetrics & Gynecology Physician · Kailua Kona, HI
Ken R. Clayton, D.O. is an obstetrics & gynecology physician with a practice address in Kailua Kona, Hawaii, and NPI 1215010194, issued on Oct 23, 2006. Check the license (Hawaii 1991, as entered in NPPES) on the Hawaii Medical Board; the Medicare figures below come from public CMS files.
- Name
- Ken R. Clayton
- Credential
- D.O.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License numbers
- 1991 HI
3839 AZ
20A 7621 CA
Self-reported in NPPES; status is on the state search - Practice location
- 78-6831 Alii Dr Ste 411, Kailua Kona, HI 96740
- Phone
- (808) 747-8321
- Enumerated
- Oct 23, 2006
- Record last updated
- Sep 24, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20080115000571); accepts Medicare assignment
- Medical or professional school
- West Virginia University School Of Medicine, 1997
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 288 in Hawaii → Look up another NPI →
Also registered at 78-6831 Alii Dr Ste 411
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Aimee Disharoon, CPM, LMMidwife1073950036
- Aries Kuo, M.D.Obstetrics & Gynecology Physician1528326642
Verify Ken R. Clayton in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersHawaii Medical Board
Search for license 1991Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
85% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
24 Medicare Part D claims, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.
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: $24.88
1 payment: food and beverage; the largest payer was Tempus AI, Inc. The 21,429 providers of this specialty with any payment received $1,030.61 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.
3 hospitals and group practices
- Marshall Medical CenterPlacerville, CA · Acute Care Hospitals4 of 5 stars
- Dignity Health Medical FoundationWoodland, CA
- Obhg California PCLos Angeles, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Ken R. Clayton among 288 obstetrics & gynecology physician records in Hawaii
Ken R. Clayton, D.O. is one of 288 obstetrics & gynecology physician records with a practice address in Hawaii. 67% 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 9% of them.
- NPI issued2006 · 9% of these records are older, 58% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 55% of these records are
- Graduated1997 · median 2006 among the 158 with a school on file
- Record last updated2019 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Hawaii practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Obstetrics & Gynecology Physician providers in Hawaii
There are 288 obstetrics & gynecology physician records in Hawaii.
All 288 in Hawaii → Every provider in Kailua Kona → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Christina Collins, M.D.Kailua Kona, HI 967401376557256
- Kristen Goerg, MDKailua Kona, HI 967401346594983
- Harnath Holmes, M.D.Kailua Kona, HI 967401679598759
- Aries Kuo, M.D.Kailua Kona, HI 967401528326642
- Mark Rhee, MDKailua Kona, HI 967401790755312
- Paul Johnston, MDKamuela, HI 967431174606131
- Gerard Szczygiel, DOKamuela, HI 967431467436006
- Mark Villarin, M.D.Kamuela, HI 967431851711592
Common questions
What is Ken R. Clayton, D.O.'s NPI number?
Ken R. Clayton, D.O.'s National Provider Identifier (NPI) is 1215010194, issued on Oct 23, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ken R. Clayton, D.O. located?
The NPPES record lists a practice address at 78-6831 Alii Dr Ste 411, Kailua Kona, HI, 96740. Phone: (808) 747-8321. Providers update this record themselves, so call before visiting.
How can I verify Ken R. Clayton, D.O.'s license?
NPPES lists Hawaii license number 1991, as entered by the provider. Search the Hawaii Medical Board at https://cca.hawaii.gov/pvl/boards/medical/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Ken R. Clayton, D.O. prescribe under Medicare Part D?
In 2024, Ken R. Clayton, D.O. had 24 Medicare Part D claims; the average among obstetrics & gynecology physician prescribers was 165. 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.