Dr. Bernadette Diekmann-Guiroy, MD
- Medicare services, 2024
- 243
- Medicare patients, 2024
- 126
- Part D claims, 2024
- 61
- Publications
- 3
- Hospital affiliations
- 1
- Practice address
- 450 East Romie Lane, Salinas, CA 93901
- Practice phone
- Call (831) 757-4333
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Diekmann-Guiroy's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Bernadette Diekmann-Guiroy is a general surgeon in Salinas, California
Dr. Diekmann-Guiroy practices at Salinas Valley Health Medical Center in Salinas, California, part of Salinas Valley Memorial Healthcare System.
Dr. Diekmann-Guiroy's NPI, 1861589616, was assigned on October 5, 2006. Dr. Diekmann-Guiroy graduated from Heinrich Heine University of Dusseldorf in 1980. Dr. Diekmann-Guiroy's California license number on file is A53311.
- NPI
- 1861589616NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8325029861
- NPI enumeration date
- October 5, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (831) 757-4333
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 72
- Medical school graduation
- 1980
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Bernadette Diekmann-Guiroy practices at Salinas Valley Health Medical Center in Salinas, California
Dr. Diekmann-Guiroy's primary practice is Salinas Valley Health Medical Center, at 450 East Romie Lane, Salinas, CA 93901 in Monterey County. The practice phone is (831) 757-4333.
- Salinas Valley Health Medical Center450 East Romie Lane, Salinas, CA 93901 · Monterey CountyPhone(831) 757-4333
Source: Dmand AI Affiliation Data
Dr. Bernadette Diekmann-Guiroy is affiliated with 3 sites of care and 1 medical group
Dr. Diekmann-Guiroy's primary practice is Salinas Valley Health Medical Center in Salinas, California, part of Salinas Valley Memorial Healthcare System. The medical group on file is Salinas Valley Health Clinics. Dmand AI also links Dr. Diekmann-Guiroy to 1 more physician office and 1 group practice or clinic, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Bernadette Diekmann-Guiroy's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Diekmann-Guiroy practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Salinas Valley Health Medical Center | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Salinas Valley Memorial Healthcare System and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Bernadette Diekmann-Guiroy is one of 2,926 general surgeons in California
Surgery is Dr. Diekmann-Guiroy's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Diekmann-Guiroy is board certified in surgery by the American Board of Surgery. Dmand AI has Dr. Diekmann-Guiroy's licenses on file in 2 states: California and Pennsylvania.
Specialties and state licenses
- Surgery, CaliforniaPrimary
- Pennsylvania license
Clinical focus
Dmand AI lists abdominal adhesion surgery, abdominal hernia repair surgery, acute gallbladder or bile duct inflammation, appendectomy, breast reconstruction, colon removal, gallbladder removal and groin hernia surgery among the conditions Dr. Diekmann-Guiroy treats.
General surgeons near Dr. Diekmann-Guiroy
Counts of general surgeons with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Bernadette Diekmann-Guiroy billed Medicare for 243 services in 2024
CMS data shows 243 Medicare services from Dr. Diekmann-Guiroy across 9 procedure codes in 2024, for 126 Medicare patients. Medicare paid $53,120 for them.
Dr. Diekmann-Guiroy's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1182024: 15229%
- Surgery
- 2023: 1242024: 9127%
Where Dr. Diekmann-Guiroy's Medicare services took place, 2024
- In an office6627%
- In a facility17773%
Dr. Diekmann-Guiroy compared with the California median for general surgeons, 2024
- Dr. Diekmann-Guiroy
- California median
- Medicare services
- 243vs 16646% above
- Medicare patients
- 126vs 121Close to median
- Part D claims
- 35vs 34Close to median
Medians across 2,606 general surgeons in California with Dmand AI profiles that report each measure.
Dr. Diekmann-Guiroy's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Diekmann-Guiroy?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Diekmann-Guiroy and other general surgeons in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Bernadette Diekmann-Guiroy treated 126 Medicare patients in 2024, average age 75
CMS counts 126 Medicare patients who saw Dr. Diekmann-Guiroy in 2024. The largest group is 65 to 74, with 61 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 39% are also on Medicaid. Their average risk score is 1.39, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Diekmann-Guiroy's median patient age at 54, with 83% women.
Dr. Diekmann-Guiroy's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Diekmann-Guiroy's Medicare patients by sex, 2024
- Women9575%
- Men3125%
Chronic conditions among Dr. Diekmann-Guiroy's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Cancer46%
- Diabetes45%
- Arthritis37%
- Anxiety29%
- Chronic kidney disease26%
- Ischemic heart disease25%
Share of Medicare patients with each condition. A patient can have several.
Dr. Diekmann-Guiroy's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 54
Patient panel by sex, all payers
- Women83%
- Men17%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Bernadette Diekmann-Guiroy wrote 61 Medicare Part D claims in 2024
In 2024, Dr. Diekmann-Guiroy wrote 61 Medicare Part D claims for 44 patients. 98% of them were for generic drugs. CMS names the drug for 35 of them, across 1 drug with 11 or more claims each, at $66 in total drug cost. In 2023, CMS named 56 claims across 2 drugs.
Dr. Diekmann-Guiroy's Part D claims by kind of drug, 2024
- Generic60 claims98%
- Brand-name and other1 claims2%
Dr. Diekmann-Guiroy's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Diekmann-Guiroy's Part D claims, 2024
- Opioids59%36 of 61 claims
- Antibiotics33%20 of 61 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 562024: 3538%
Drugs named by CMS: 1 in 2024, 2 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Bernadette Diekmann-Guiroy ranks in the 88th percentile for mastectomy in Medicare
Dr. Diekmann-Guiroy accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 32 procedures of mastectomy by Dr. Diekmann-Guiroy, more than 88% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Diekmann-Guiroy ranks in Medicare procedure volume
- Mastectomy
- 88th percentile32 procedures
- Melanoma (skin cancer) excision
- 69th percentile14 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)
Hernia repair - groin (open): 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Bernadette Diekmann-Guiroy has 3 publications on record
Dmand AI links 3 papers to Dr. Diekmann-Guiroy.
Recent publications by Dr. Diekmann-Guiroy
See who Dr. Diekmann-Guiroy researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Diekmann-Guiroy works with, so you can find a warm path to the right general surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Bernadette Diekmann-Guiroy received $374 in industry payments from 2016 to 2024
CMS Open Payments shows 11 general payments to Dr. Diekmann-Guiroy from 5 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 100% of the total. Hologic Inc paid the most, $145.
General payments to Dr. Diekmann-Guiroy by program year, 2016 to 2024
Companies that paid Dr. Diekmann-Guiroy the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Bernadette Diekmann-Guiroy graduated from Heinrich Heine University of Dusseldorf
Dr. Diekmann-Guiroy graduated from Heinrich Heine University of Dusseldorf in 1980.
- Medical school
- Board certified in surgery
Source: Dmand AI Professional Profile Data
Dr. Bernadette Diekmann-Guiroy accepts plans from 9 insurance carriers
Dr. Diekmann-Guiroy is in network with 9 carriers, including Elevance, Aetna and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.
- Elevance
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- Blue Cross and Blue Shield of Kansas City
- +1 more carriersWith a free account
Plan types Dr. Diekmann-Guiroy accepts, by number of carriers
- Medicare8
- PPO7
- HMO4
- POS4
- EPO3
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Bernadette Diekmann-Guiroy's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Bernadette Diekmann-Guiroy
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Bernadette Diekmann-Guiroy's NPI number?
Dr. Bernadette Diekmann-Guiroy's NPI number is 1861589616. It was assigned on October 5, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Bernadette Diekmann-Guiroy?
Dr. Bernadette Diekmann-Guiroy is a general surgeon in Salinas, California. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Bernadette Diekmann-Guiroy practice?
Dr. Diekmann-Guiroy practices at 450 East Romie Lane, Salinas, CA 93901. Dr. Diekmann-Guiroy's primary practice is Salinas Valley Health Medical Center in Salinas, California, part of Salinas Valley Memorial Healthcare System. Dmand AI also links Dr. Diekmann-Guiroy to 1 physician office and 1 group practice or clinic.
What is Dr. Bernadette Diekmann-Guiroy's office phone number?
The practice phone on file for Dr. Diekmann-Guiroy is (831) 757-4333.
What is Dr. Bernadette Diekmann-Guiroy's medical license number?
Dr. Diekmann-Guiroy's California license number on file is A53311, one of the licenses on file in 2 states.
Which states has Dr. Bernadette Diekmann-Guiroy been licensed in?
Dmand AI has state licenses on file for Dr. Diekmann-Guiroy in California (1994 to 2025) and Pennsylvania (1991 to 1992).
Which hospitals is Dr. Bernadette Diekmann-Guiroy affiliated with?
Dr. Diekmann-Guiroy practices at Salinas Valley Health Medical Center in Salinas, California.
What medical group is Dr. Bernadette Diekmann-Guiroy part of?
Dr. Diekmann-Guiroy is linked to Salinas Valley Health Clinics.
Does Dr. Bernadette Diekmann-Guiroy accept Medicare?
Yes. CMS data shows Dr. Diekmann-Guiroy billed Medicare for 243 services in 2024, and Dr. Diekmann-Guiroy accepts Medicare assignment.
How many Medicare patients does Dr. Bernadette Diekmann-Guiroy see?
CMS counts 126 Medicare patients who saw Dr. Diekmann-Guiroy in 2024, with an average age of 75.
Show 8 more questionsShow fewer questions
Is Dr. Bernadette Diekmann-Guiroy board certified?
Yes. Dr. Diekmann-Guiroy is board certified in surgery by the American Board of Surgery.
What services does Dr. Bernadette Diekmann-Guiroy bill to Medicare?
In 2024, Dr. Diekmann-Guiroy's most billed Medicare services were hospital inpatient care (99223), office visit, new patient (99205) and hospital inpatient care (99232).
Where did Dr. Bernadette Diekmann-Guiroy go to medical school?
Dr. Diekmann-Guiroy graduated from Heinrich Heine University of Dusseldorf in 1980.
What drugs does Dr. Bernadette Diekmann-Guiroy prescribe most?
In 2024 Medicare Part D data, Dr. Diekmann-Guiroy's most prescribed drugs by claims were Tramadol HCl.
Has Dr. Bernadette Diekmann-Guiroy received payments from drug or device companies?
CMS Open Payments shows $374 in general payments to Dr. Diekmann-Guiroy from 5 companies from 2016 to 2024. The largest total came from Hologic Inc.
How long has Dr. Bernadette Diekmann-Guiroy been practicing?
Dr. Diekmann-Guiroy graduated from medical school in 1980, 46 years ago.
Does Dr. Bernadette Diekmann-Guiroy do research?
Dmand AI links 3 publications to Dr. Diekmann-Guiroy.
What insurance does Dr. Bernadette Diekmann-Guiroy accept?
Dr. Diekmann-Guiroy is in network with 9 carriers, including Elevance, Aetna and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.
Selling to surgery practices?
See general surgeons in California by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card