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Obstetrics/Gynecology

Ken R. Clayton, DO

Works at hospitals in Placerville, CA · California

Summary

Dr. Ken R. Clayton, DO is an OB-GYN at 1095 Marshall Way, Suite 201, Placerville, CA 95667. Phone: (530) 626-3686. Accepts Medicare assignment. In 2024, Ken R. Clayton had 92 Original Medicare patients and 921 services. NPI 1215010194. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: OB-GYN (Medicare lists Obstetrics/Gynecology)
  • Address: 1095 Marshall Way, Suite 201, Placerville, CA 95667 · Directions (3 more locations)
  • Phone: (530) 626‑3686
  • Medicare: Accepts Medicare assignment
  • Hospital: Marshall Medical Center
  • Group practice: Dignity Health Medical Foundation (+2 more)
  • Medical school: West Virginia University School Of Medicine · graduated 1997 (29 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Ken R. Clayton, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Ken R. Clayton accept Medicare assignment?
Yes. Medicare's clinician data says Ken R. Clayton accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Ken R. Clayton see?
In 2024, CMS data shows 92 Original Medicare patients and 921 services for Ken R. Clayton. This counts Original Medicare only and measures volume, not quality.
What is Ken R. Clayton's NPI number?
1215010194. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Ken R. Clayton, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients92
Services billed to Medicare921
Different services or procedures43
Participating Medicare providerYes
Average age of these patients66

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)202 services
  2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)180 services
  3. Injection of drug or substance under skin or into muscle (96372)60 services
  4. Insertion of needle into vein for collection of blood sample (36415)49 services
  5. Urinalysis, manual test (81002)22 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • Arthritis60%
  • High cholesterol59%
  • Diabetes48%
  • COPD24%
  • Asthma22%

Hospitals where Ken R. Clayton works

Medicare's Facility Affiliation Data lists Ken R. Clayton at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

  • Marshall Medical CenterPlacerville, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050254

Practice locations

Addresses where Ken R. Clayton is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Ken R. Clayton as a member of these groups (CMS data updated October 2, 2026).

  • Dignity Health Medical Foundation1,184 clinicians in the group
  • Marshall Medical Center176 clinicians in the group
  • Obhg California PC94 clinicians in the group

Specialties

Find other Obstetrics/Gynecology doctors in California →

Other OB-GYNs in Placerville

Clinicians with the same Medicare primary specialty in Placerville, CA — not a recommendation.

All OB-GYNs in Placerville →

Other clinicians in Dignity Health Medical Foundation

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialDO
Medical schoolWest Virginia University School Of Medicine
Graduation year1997 (29 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1215010194
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians