Sara Helena Bonilla-Larsen, MD
Internal Medicine Physician · Elk Grove, CA
Sara Helena Bonilla-Larsen, MD is an internal medicine physician with a practice address in Elk Grove, California, and NPI 1194352419, issued on Mar 25, 2020. Check the license (California A190479, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Sara Helena Bonilla-Larsen
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A190479 CA
Self-reported in NPPES; status is on the state search - Practice location
- 8170 Laguna Blvd Ste 220, Elk Grove, CA 95758
- Phone
- (916) 691-5900
- Enumerated
- Mar 25, 2020
- Record last updated
- Aug 6, 2025
- Medicare enrollment
- Enrolled (PECOS I20250729003056); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 8170 Laguna Blvd Ste 220
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Silen Bun, MDFamily Medicine Physician1972938363
- Cheryl George, FNPFamily Nurse Practitioner1770912800
- Hau Ly, DOFamily Medicine Physician1134758469
Verify Sara Helena Bonilla-Larsen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A190479Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average internal medicine physician in 2024
18 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
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
- Sutter Valley Medical FoundationSacramento, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sara Helena Bonilla-Larsen among 17,696 internal medicine physician records in California
Sara Helena Bonilla-Larsen, MD is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 89% of them.
- NPI issued2020 · 89% of these records are older, 8% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2020 · median 2004 among the 11,065 with a school on file
- Record last updated2025 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
38 internal medicine physician records list a practice address in Elk Grove
They are 38 of the 3,596 NPPES records with a practice address in Elk Grove, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Elk Grove → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Todd Fisher, M.D.Sacramento, CA 957581689610388
- Eddy Joelson, M.D.Elk Grove, CA 957581043294580
- Jojo Joves, MDElk Grove, CA 957581356429070
- Lisa Marelich, MDElk Grove, CA 957581417035130
- Luu Nguyen, MDElk Grove, CA 957581417035148
- Edward Pagliere, MDElk Grove, CA 957581518045228
- Shahin Shahbazi, MDElk Grove, CA 957581265510994
- Desmond Tan, M.D.Elk Grove, CA 957581780625863
Common questions
What is Sara Helena Bonilla-Larsen, MD's NPI number?
Sara Helena Bonilla-Larsen, MD's National Provider Identifier (NPI) is 1194352419, issued on Mar 25, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Sara Helena Bonilla-Larsen, MD located?
The NPPES record lists a practice address at 8170 Laguna Blvd Ste 220, Elk Grove, CA, 95758. Phone: (916) 691-5900. Providers update this record themselves, so call before visiting.
How can I verify Sara Helena Bonilla-Larsen, MD's license?
NPPES lists California license number A190479, 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 Sara Helena Bonilla-Larsen, MD prescribe under Medicare Part D?
In 2024, Sara Helena Bonilla-Larsen, MD had 18 Medicare Part D claims; the average among internal medicine physician prescribers was 3,176. 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.