Vincent Patrick O'Brien Guerrero, MD, MBA
Family Medicine Physician · Placerville, CA
Vincent Patrick O'Brien Guerrero, MD, MBA is a family medicine physician with a practice address in Placerville, California, and NPI 1114586583, issued on Jun 10, 2019. Check the license (California A182105, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Vincent Patrick O'Brien Guerrero
- Credential
- MD, MBA
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A182105 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4212 Missouri Flat RD, Placerville, CA 95667
- Phone
- (530) 621-7700
- Enumerated
- Jun 10, 2019
- Record last updated
- Oct 14, 2022
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 4212 Missouri Flat RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Vincent Patrick O'Brien Guerrero in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A182105Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
11% fewer Medicare Part D claims than the average family medicine physician in 2024
3,157 Medicare Part D claims for 256 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 255 claims were for opioids.
Most prescribed
- Atorvastatin Calcium186 claims
- Gabapentin112 claims
- Lisinopril112 claims
- Hydrocodone-Acetaminophen108 claims
- Losartan Potassium107 claims
- Trazodone Hcl96 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.
Vincent Patrick O'Brien Guerrero among 17,133 family medicine physician records in California
Vincent Patrick O'Brien Guerrero, MD, MBA 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 2019, is newer than 85% of them.
- NPI issued2019 · 85% of these records are older, 12% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2022 · 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 Klas, M.D.Placerville, CA 956671427059971
- William Koble, M.D.Placerville, CA 956671558367102
- Catherine Moizeau, MDPlacerville, CA 956671205866613
- Lawrence Moore, M.D.Placerville, CA 956671104827377
- Rene Orona, MDPlacerville, CA 956671649383399
Common questions
What is Vincent Patrick O'Brien Guerrero, MD, MBA's NPI number?
Vincent Patrick O'Brien Guerrero, MD, MBA's National Provider Identifier (NPI) is 1114586583, issued on Jun 10, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Vincent Patrick O'Brien Guerrero, MD, MBA located?
The NPPES record lists a practice address at 4212 Missouri Flat RD, Placerville, CA, 95667. Phone: (530) 621-7700. Providers update this record themselves, so call before visiting.
How can I verify Vincent Patrick O'Brien Guerrero, MD, MBA's license?
NPPES lists California license number A182105, 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 Vincent Patrick O'Brien Guerrero, MD, MBA prescribe under Medicare Part D?
In 2024, Vincent Patrick O'Brien Guerrero, MD, MBA had 3,157 Medicare Part D claims for 256 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.