William Klas, M.D.
Family Medicine Physician · Placerville, CA
William Klas, M.D. is a family medicine physician with a practice address in Placerville, California, and NPI 1427059971, issued on Aug 9, 2005. Check the license (California G65747, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- William Klas
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- G65747 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1095 Marshall Way, Placerville, CA 95667
- Phone
- (530) 626-2920
- Enumerated
- Aug 9, 2005
- Record last updated
- Jan 12, 2016 (not updated in 10 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 1095 Marshall Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Phyllis Allen, NPNurse Practitioner1386669638
- Cesar Ang, MDInternal Medicine Physician1225010218
- Courtnie Billett, M.D.Family Medicine Physician1427287077
- Lucy Buchert, FNP-CNurse Practitioner1306821145
- Leanne Camisa, M.D.Family Medicine Physician1124081377
- Robert Carter, MDGynecology Physician1346413820
Verify William Klas in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G65747Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
53% fewer Medicare Part D claims than the average family medicine physician in 2024
1,659 Medicare Part D claims for 335 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 147 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen101 claims
- Atorvastatin Calcium76 claims
- Lisinopril68 claims
- Amlodipine Besylate63 claims
- Trazodone Hcl61 claims
- Gabapentin57 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.
William Klas among 17,133 family medicine physician records in California
William Klas, M.D. is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 94% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2016 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
30 family medicine physician records list a practice address in Placerville
They are 30 of the 989 NPPES records with a practice address in Placerville, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Placerville → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- William Barley, M.D.Placerville, CA 956671619062007
- Leanne Camisa, M.D.Placerville, CA 956671124081377
- Kathleen Carmer, F.N.PPlacerville, CA 956671558470369
- William Koble, M.D.Placerville, CA 956671558367102
- Catherine Moizeau, MDPlacerville, CA 956671205866613
- Lawrence Moore, M.D.Placerville, CA 956671104827377
- Rene Orona, MDPlacerville, CA 956671649383399
- David Ramos, M.D.Placerville, CA 956671962465104
Common questions
What is William Klas, M.D.'s NPI number?
William Klas, M.D.'s National Provider Identifier (NPI) is 1427059971, issued on Aug 9, 2005. An NPI identifies a provider in billing; it is not a license.
Where is William Klas, M.D. located?
The NPPES record lists a practice address at 1095 Marshall Way, Placerville, CA, 95667. Phone: (530) 626-2920. Providers update this record themselves, so call before visiting.
How can I verify William Klas, M.D.'s license?
NPPES lists California license number G65747, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does William Klas, M.D. prescribe under Medicare Part D?
In 2024, William Klas, M.D. had 1,659 Medicare Part D claims for 335 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.