Bernadette Diekmann-Guiroy, M.D.
Surgery Physician · Salinas, CA
Bernadette Diekmann-Guiroy, M.D. is a surgery physician with a practice address in Salinas, California, and NPI 1861589616, issued on Oct 5, 2006. Check the license (California A53311, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Bernadette Diekmann-Guiroy
- Credential
- M.D.
- Primary taxonomy
- Surgery Physician 208600000X
- License number
- A53311 CA
Self-reported in NPPES; status is on the state search - Practice location
- 236 San Jose St, Salinas, CA 93901
- Phone
- (831) 424-7389
- Enumerated
- Oct 5, 2006
- Record last updated
- May 22, 2026
- Medicare enrollment
- Enrolled (PECOS I20040603000729); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 236 San Jose St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Tarun Bajaj, M.D.Surgery Physician1306042676
- James Dickey, MDSurgery Physician1457321242
- Teale FinkelPhysician Assistant1740041425
- Mark Healy, MDSurgical Oncology Physician1437445798
- Morgan Helderle, PA-CPhysician Assistant1881282218
- Tatiana Hoyos Gomez, M.D.Surgery Physician1265850762
Verify Bernadette Diekmann-Guiroy in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A53311Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
59% fewer Medicare Part D claims than the average surgery physician in 2024
61 Medicare Part D claims for 44 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. 36 claims were for opioids.
Most prescribed
- Tramadol Hcl35 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: $35.36
2 payments; by number, the most common kind was food and beverage; the largest payer was Hologic Sales and Service, LLC. The 17,103 providers of this specialty with any payment received $3,513.80 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.
Surgery Physician providers in California
There are 3,118 surgery physician records in California.
Other surgery physician records in California
- Miriam Abaunza, M.D.Los Angeles, CA1538470778
- Hana Abdirahman, MDTemecula, CA1265288112
- Sherwin Abdoli, MDPetaluma, CA1508386442
- Mhdshafic Abdulkarim, MDOrange, CA1750174249
- Sarah Abdulla, M.D.Baldwin Park, CA1699200840
- Shoko Abe, M.D.Berkeley, CA1609178136
- Stuart Abel, M.D.Los Angeles, CA1750761516
- Elliot Abemayor, MDLos Angeles, CA1972527414
- Marc Abi Karam, MD, MSPalo Alto, CA1437846508
- Ali Abidali, DOGlendora, CA1861888794
Common questions
What is Bernadette Diekmann-Guiroy, M.D.'s NPI number?
Bernadette Diekmann-Guiroy, M.D.'s National Provider Identifier (NPI) is 1861589616, issued on Oct 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Bernadette Diekmann-Guiroy, M.D. located?
The NPPES record lists a practice address at 236 San Jose St, Salinas, CA, 93901. Phone: (831) 424-7389. Providers update this record themselves, so call before visiting.
How can I verify Bernadette Diekmann-Guiroy, M.D.'s license?
NPPES lists California license number A53311, 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 Bernadette Diekmann-Guiroy, M.D. prescribe under Medicare Part D?
In 2024, Bernadette Diekmann-Guiroy, M.D. had 61 Medicare Part D claims for 44 beneficiaries; the average among surgery physician prescribers was 147. 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.