Sonja Derose, MD
Family Medicine Physician · Clearlake, CA
Sonja Derose, MD is a family medicine physician with a practice address in Clearlake, California, and NPI 1558849661, issued on Jul 31, 2018. Check the license (California G151475, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Sonja Derose
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- G151475 CA
Self-reported in NPPES; status is on the state search - Practice location
- 15230 Lakeshore Dr, Clearlake, CA 95422
- Phone
- (707) 995-4500
- Enumerated
- Jul 31, 2018
- Record last updated
- Jul 31, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20181109000540); accepts Medicare assignment
- Medical or professional school
- Loma Linda University School Of Medicine, 1989
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 15230 Lakeshore Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Marisol AguilarCommunity Health Worker1699411603
- Veronica ArroyoCommunity Health Worker1730710617
- Pari Azari, M.D.Interventional Pain Medicine Physician1942442132
- Arthur Bikangaga, MDSurgery Physician1952319030
- Jerylyn Bohlender, LCSWClinical Social Worker1750782488
- Daniel Boucher, MDFamily Medicine Physician1164115549
Verify Sonja Derose in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G151475Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average family medicine physician in 2024
180 Medicare Part D claims, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 11 claims were for opioids.
Most prescribed
- Atorvastatin Calcium20 claims
- Levothyroxine Sodium15 claims
- Metformin Hcl13 claims
- Duloxetine Hcl12 claims
- Dextroamphetamine-Amphetamine11 claims
- Oxycodone-Acetaminophen11 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.
Bills Medicare through one group practice
- Newstart Medical Group IncWeimar, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sonja Derose among 17,133 family medicine physician records in California
Sonja Derose, MD 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 2018, is newer than 82% of them.
- NPI issued2018 · 82% of these records are older, 15% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1989 · median 2005 among the 10,652 with a school on file
- Record last updated2018 · 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).
9 family medicine physician records list a practice address in Clearlake
They are 9 of the 321 NPPES records with a practice address in Clearlake, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Clearlake → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Daniel Boucher, MDClearlake, CA 954221164115549
- Jerry Douglas, MDClearlake, CA 954221285603621
- Mark Freeman, MDClearlake, CA 954221801898929
- Siqi Ma, DOClearlake, CA 954221659991933
- Gail Marquette, FNPClearlake, CA 954221205851656
- Susan Salmina, FNP-CClearlake, CA 954221700322690
- Wolfgang Schug, MDClearlake, CA 954221598798233
- John Weeks, M.D.Clearlake, CA 954221962473074
Common questions
What is Sonja Derose, MD's NPI number?
Sonja Derose, MD's National Provider Identifier (NPI) is 1558849661, issued on Jul 31, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Sonja Derose, MD located?
The NPPES record lists a practice address at 15230 Lakeshore Dr, Clearlake, CA, 95422. Phone: (707) 995-4500. Providers update this record themselves, so call before visiting.
How can I verify Sonja Derose, MD's license?
NPPES lists California license number G151475, 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 Sonja Derose, MD prescribe under Medicare Part D?
In 2024, Sonja Derose, MD had 180 Medicare Part D claims; 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.