Stephen Sanderson Sosnicki, M.D.
Family Medicine Physician · Sacramento, CA
Stephen Sanderson Sosnicki, M.D. is a family medicine physician with a practice address in Sacramento, California, and NPI 1578884060, issued on Jun 18, 2010. Check the license (California 134019, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Stephen Sanderson Sosnicki
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- 134019 CA
A134019 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2020 J St, Sacramento, CA 95811
- Phone
- (916) 341-0576
- Enumerated
- Jun 18, 2010
- Record last updated
- Oct 1, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20150423000016); accepts Medicare assignment
- Medical or professional school
- Georgetown University School Of Medicine, 2010
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 2020 J St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Haylee Benesi-GonzalezSocial Worker1265350912
- Natalie Benjamin, LCSWClinical Social Worker1790974277
- Masako Berger, RD, MPHRegistered Dietitian1669868329
- Nicolas Caballero Talavera, LCSWClinical Social Worker1922351071
Verify Stephen Sanderson Sosnicki in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 134019Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
13% fewer Medicare Part D claims than the average family medicine physician in 2024
3,098 Medicare Part D claims for 353 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 237 claims were for opioids.
Most prescribed
- Atorvastatin Calcium216 claims
- Hydrocodone-Acetaminophen129 claims
- Meloxicam117 claims
- Fluticasone Propionate115 claims
- Albuterol Sulfate Hfa98 claims
- Levothyroxine Sodium82 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.
Industry payments in 2024: $22.07
1 payment: food and beverage; the largest payer was Abbvie 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
- Permanente Medical Group IncSacramento, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Stephen Sanderson Sosnicki among 17,133 family medicine physician records in California
Stephen Sanderson Sosnicki, 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 2010, is newer than 60% of them.
- NPI issued2010 · 60% of these records are older, 37% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2010 · median 2005 among the 10,652 with a school on file
- Record last updated2020 · 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).
473 family medicine physician records list a practice address in Sacramento
They are 473 of the 33,083 NPPES records with a practice address in Sacramento, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Sacramento → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Samuel Applebaum, MDSacramento, CA 958111093833360
- Aaron Cleveland, M.D.Sacramento, CA 958111497829147
- Luz Contreras ArroyoSacramento, CA 958111497005995
- Olivia Garcia-Dersch, M.D.Sacramento, CA 958111831118710
- Wendy Heller, DOSacramento, CA 958111316148331
- Dwijavanthi Kumar, MDSacramento, CA 958111700271731
- Oliver Lau, M.D.Sacramento, CA 958111679558969
- Sky Lee, MDSacramento, CA 958111508278714
Common questions
What is Stephen Sanderson Sosnicki, M.D.'s NPI number?
Stephen Sanderson Sosnicki, M.D.'s National Provider Identifier (NPI) is 1578884060, issued on Jun 18, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Stephen Sanderson Sosnicki, M.D. located?
The NPPES record lists a practice address at 2020 J St, Sacramento, CA, 95811. Phone: (916) 341-0576. Providers update this record themselves, so call before visiting.
How can I verify Stephen Sanderson Sosnicki, M.D.'s license?
NPPES lists California license number 134019, 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 Stephen Sanderson Sosnicki, M.D. prescribe under Medicare Part D?
In 2024, Stephen Sanderson Sosnicki, M.D. had 3,098 Medicare Part D claims for 353 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.