Jan O. Sonander, MD
Family Medicine Physician · Santa Rosa, CA
Jan O. Sonander, MD is a family medicine physician with a practice address in Santa Rosa, California, and NPI 1982763959, issued on Dec 6, 2006. Check the license (California G56178, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Jan O. Sonander
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- G56178 CA
Self-reported in NPPES; status is on the state search - Practice location
- 990 Sonoma Ave Ste 19, Santa Rosa, CA 95404
- Phone
- (707) 542-8700
- Enumerated
- Dec 6, 2006
- Record last updated
- Aug 26, 2025
- Fax
- (707) 528-8700
- Medicare enrollment
- Enrolled (PECOS I20040701000712); accepts Medicare assignment
- Medical or professional school
- University Of California, Davis School Of Medicine, 1984
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Verify Jan O. Sonander in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G56178Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.8 times the Medicare Part D claims of the average family medicine physician in 2024
9,912 Medicare Part D claims for 436 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 297 claims were for opioids.
Most prescribed
- Atorvastatin Calcium587 claims
- Levothyroxine Sodium435 claims
- Lisinopril315 claims
- Losartan Potassium283 claims
- Omeprazole275 claims
- Hydrochlorothiazide255 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.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $83.31
4 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 55,478 providers of this specialty with any payment received $902.55 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.
Bills Medicare through one group practice
- American Specialty Physicians Group IncColusa, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jan O. Sonander among 17,133 family medicine physician records in California
Jan O. Sonander, 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 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 59% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1984 · median 2005 among the 10,652 with a school on file
- Record last updated2025 · 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).
264 family medicine physician records list a practice address in Santa Rosa
They are 264 of the 6,884 NPPES records with a practice address in Santa Rosa, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Santa Rosa → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Anna BaylorSanta Rosa, CA 954041538218433
- Kevin Bergman, M.D.Santa Rosa, CA 954041679699300
- David-James Bloom, MDSanta Rosa, CA 954041699731133
- Jeannette Currie, M.D.Santa Rosa, CA 954041083642409
- Richard Flinders, MDSanta Rosa, CA 954041376557835
- Robert Gaskie, MDSanta Rosa, CA 954041962556613
- Leigh Hall, MDSanta Rosa, CA 954041366515173
- April Hurley, MDSanta Rosa, CA 954041538269048
Common questions
What is Jan O. Sonander, MD's NPI number?
Jan O. Sonander, MD's National Provider Identifier (NPI) is 1982763959, issued on Dec 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Jan O. Sonander, MD located?
The NPPES record lists a practice address at 990 Sonoma Ave Ste 19, Santa Rosa, CA, 95404. Phone: (707) 542-8700. Providers update this record themselves, so call before visiting.
How can I verify Jan O. Sonander, MD's license?
NPPES lists California license number G56178, 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 Jan O. Sonander, MD prescribe under Medicare Part D?
In 2024, Jan O. Sonander, MD had 9,912 Medicare Part D claims for 436 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Jan O. Sonander, MD's MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.