Dr. William Grundler, MD
- Part D claims, 2024
- 20
- Hospital affiliations
- 1
- Industry payments
- $212
- Medical group
- 1
- Insurance carriers
- 4
- Practice address
- 147 North Brent Street, Ventura, CA 93003
- Practice phone
- Call (805) 652-5011
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Grundler'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. William Grundler is an internist in Ventura, California
Dr. Grundler practices at Community Memorial Hospital - Ventura in Ventura, California, part of Community Memorial Healthcare.
Dr. Grundler's NPI, 1750445201, was assigned on December 20, 2006. Dr. Grundler graduated from Loyola University Chicago Stritch School of Medicine in 1979. Dr. Grundler's California license number on file is G87153.
- NPI
- 1750445201NPI Registry (opens in a new tab)
- NPI enumeration date
- December 20, 2006
- NPI status
- Active
- Practice phone
- (805) 652-5011
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1979
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. William Grundler practices at Community Memorial Hospital - Ventura in Ventura, California
Dr. Grundler's primary practice is Community Memorial Hospital - Ventura, at 147 North Brent Street, Ventura, CA 93003 in Ventura County. The practice phone is (805) 652-5011.
- Community Memorial Hospital - Ventura147 North Brent Street, Ventura, CA 93003 · Ventura CountyPhone(805) 652-5011
Source: Dmand AI Affiliation Data
Dr. William Grundler is affiliated with 2 sites of care and 1 medical group
Dr. Grundler's primary practice is Community Memorial Hospital - Ventura in Ventura, California, part of Community Memorial Healthcare. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Dr. Grundler to 1 more group practice or clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. William Grundler's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Grundler practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Community Memorial Hospital - Ventura | Available with a free account |
| +1 more affiliated site | 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 Community Memorial Healthcare and 6.2K+ hospitals, with verified contacts in the same login.
Dr. William Grundler is one of 16,751 internists in California
Internal medicine is Dr. Grundler's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Grundler is board certified in critical care medicine by the American Board of Internal Medicine. Dmand AI has Dr. Grundler's licenses on file in 6 states: California, Colorado, Illinois, New Mexico, Wisconsin and Oklahoma.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
- Colorado license
- Illinois license
- New Mexico license
- Wisconsin license
- Oklahoma license
Internists near Dr. Grundler
Counts of internists 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. William Grundler's patients have a median age of 70
Across all payers, Dmand AI patient panel data puts Dr. Grundler's median patient age at 70, with 51% women.
Dr. Grundler's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women51%
- Men49%
Source: Dmand AI Patient Panel Data
Dr. William Grundler wrote 20 Medicare Part D claims in 2024
In 2024, Dr. Grundler wrote 20 Medicare Part D claims for 11 patients. 90% of them were for generic drugs. They cover 6 drugs, with $2,099 in total drug cost.
Dr. Grundler's Part D claims by kind of drug, 2024
- Generic18 claims90%
- Brand-name and other2 claims10%
Dr. Grundler's most prescribed drugs by claims, 2016
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
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
For MedTech and pharma teams
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Dr. William Grundler received $212 in industry payments from 2018 to 2019
CMS Open Payments shows 2 general payments to Dr. Grundler from 2 drug and device companies from 2018 to 2019. Food and beverage make up the largest share, 100% of the total. Allergan Inc. paid the most, $125.
General payments to Dr. Grundler by program year, 2018 to 2019
Companies that paid Dr. Grundler the most, 2018 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. William Grundler graduated from Loyola University Chicago Stritch School of Medicine
Dr. Grundler graduated from Loyola University Chicago Stritch School of Medicine in 1979.
- Medical school
- Board certified in critical care medicine
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. William Grundler accepts plans from 4 insurance carriers
Dr. Grundler is in network with 4 carriers, including Kaiser Permanente, Blue Cross Blue Shield of Massachusetts and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 3. Check the plan with the practice before a visit.
- Kaiser Permanente
- Blue Cross Blue Shield of Massachusetts
- Blue Cross Blue Shield of Michigan
- HCSC
Plan types Dr. Grundler accepts, by number of carriers
- Medicare3
- PPO3
- EPO1
- HMO1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. William Grundler'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 patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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) |
| 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. William Grundler
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. William Grundler's NPI number?
Dr. William Grundler's NPI number is 1750445201. It was assigned on December 20, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. William Grundler?
Dr. William Grundler is an internist in Ventura, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. William Grundler practice?
Dr. Grundler practices at 147 North Brent Street, Ventura, CA 93003. Dr. Grundler's primary practice is Community Memorial Hospital - Ventura in Ventura, California, part of Community Memorial Healthcare. Dmand AI also links Dr. Grundler to 1 group practice or clinic.
What is Dr. William Grundler's office phone number?
The practice phone on file for Dr. Grundler is (805) 652-5011.
What is Dr. William Grundler's medical license number?
Dr. Grundler's California license number on file is G87153, one of the licenses on file in 6 states.
Which states has Dr. William Grundler been licensed in?
Dmand AI has state licenses on file for Dr. Grundler in California (2004 to 2025), Colorado (2004 to 2021), Illinois (1981 to 2011), New Mexico (2008 to 2009), Wisconsin (2003 to 2005) and Oklahoma (1998 to 2004).
Which hospitals is Dr. William Grundler affiliated with?
Dr. Grundler practices at Community Memorial Hospital - Ventura in Ventura, California.
What medical group is Dr. William Grundler part of?
Dr. Grundler is linked to Southern California Permanente Medical Group.
Is Dr. William Grundler board certified?
Yes. Dr. Grundler is board certified in critical care medicine by the American Board of Internal Medicine.
Where did Dr. William Grundler go to medical school?
Dr. Grundler graduated from Loyola University Chicago Stritch School of Medicine in 1979.
Show 4 more questionsShow fewer questions
What drugs does Dr. William Grundler prescribe most?
In 2016 Medicare Part D data, Dr. Grundler's most prescribed drugs by claims were Amoxicillin-Clavulanate Potass, Furosemide and Atorvastatin Calcium.
Has Dr. William Grundler received payments from drug or device companies?
CMS Open Payments shows $212 in general payments to Dr. Grundler from 2 companies from 2018 to 2019. The largest total came from Allergan Inc.
How long has Dr. William Grundler been practicing?
Dr. Grundler graduated from medical school in 1979, 47 years ago.
What insurance does Dr. William Grundler accept?
Dr. Grundler is in network with 4 carriers, including Kaiser Permanente, Blue Cross Blue Shield of Massachusetts and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 3. Check the plan with the practice before a visit.
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