Dr. David R. Cornish, MD
- Part D claims, 2018
- 112
- Hospital affiliations
- 1
- Industry payments
- $37
- State licenses
- 3
- Year NPI issued
- 2006
- Practice address
- 10535 Hospital Way, Mather, CA 95655
- Practice phone
- Call (800) 382-8387
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Cornish'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. David R. Cornish is a gastroenterologist in Mather, California
Dr. Cornish practices at Sacramento VA Medical Center in Mather, California, part of Veterans Health Administration.
Dr. Cornish's NPI, 1790863694, was assigned on November 1, 2006. Dr. Cornish graduated from Boston University School Of Medicine in 1980. Dr. Cornish holds California license G44943.
- NPI
- 1790863694NPI Registry (opens in a new tab)
- NPI enumeration date
- November 1, 2006
- NPI status
- Active
- Practice phone
- (800) 382-8387
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1980
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. David R. Cornish practices at Sacramento VA Medical Center in Mather, California
Dr. Cornish's primary practice is Sacramento VA Medical Center, at 10535 Hospital Way, Mather, CA 95655 in Sacramento County. The practice phone is (800) 382-8387.
- Sacramento VA Medical Center10535 Hospital Way, Mather, CA 95655 · Sacramento CountyPhone(800) 382-8387
Source: Dmand AI Affiliation Data
Dr. David R. Cornish is affiliated with 1 site of care
Dr. Cornish's primary practice is Sacramento VA Medical Center in Mather, California, part of Veterans Health Administration. Dr. Cornish's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. David R. Cornish's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Cornish practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Sacramento VA Medical Center | 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 Veterans Health Administration and 6.2K+ hospitals, with verified contacts in the same login.
Dr. David R. Cornish is one of 1,977 gastroenterologists in California
Gastroenterology is Dr. Cornish's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Cornish is board certified in gastroenterology by the American Board of Internal Medicine. Dmand AI has Dr. Cornish's licenses on file in 3 states: California, Colorado and Washington.
Specialties and state licenses
- Gastroenterology, CaliforniaPrimary
- Colorado license
- Washington license
Gastroenterologists near Dr. Cornish
Counts of gastroenterologists 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. David R. Cornish's patients have a median age of 75
Across all payers, Dmand AI patient panel data puts Dr. Cornish's median patient age at 75, with 0% women.
Dr. Cornish's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 75
Patient panel by sex, all payers
- Women0%
- Men100%
Source: Dmand AI Patient Panel Data
Dr. David R. Cornish wrote 112 Medicare Part D claims in 2018
In 2018, Dr. Cornish wrote 112 Medicare Part D claims. They cover 5 drugs, with $26,273 in total drug cost. In 2017, CMS named 506 claims across 11 drugs.
Dr. Cornish's most prescribed drugs by claims, 2018
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2017 to 2018
- 2017
- 2018
- Claims for drugs CMS names
- 2017: 5062018: 11278%
Drugs named by CMS: 5 in 2018, 11 in 2017.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. David R. Cornish received $37 in industry payments from 2024 to 2025
CMS Open Payments shows 2 general payments to Dr. Cornish from 1 drug or device company from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. Olympus America Inc. paid the most, $37.
General payments to Dr. Cornish by program year, 2024 to 2025
Companies that paid Dr. Cornish the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. David R. Cornish has 2 awards and honors on record
Dmand AI lists 2 awards for Dr. Cornish, most recently CMS Stage 1 2012 in 2011.
Awards and honors for Dr. Cornish
- 2011
- CMS Stage 1 2012
- 2009
- AGA Fellow
Source: Dmand AI Professional Profile Data
Dr. David R. Cornish graduated from Boston University School Of Medicine
Dr. Cornish graduated from Boston University School Of Medicine in 1980. Dr. Cornish is a member of AGA.
- Medical school
- Board certified in gastroenterology
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Sources for Dr. David R. Cornish'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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile 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. David R. Cornish
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. David R. Cornish's NPI number?
Dr. David R. Cornish's NPI number is 1790863694. It was assigned on November 1, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. David R. Cornish?
Dr. David R. Cornish is a gastroenterologist in Mather, California. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. David R. Cornish practice?
Dr. Cornish practices at 10535 Hospital Way, Mather, CA 95655. Dr. Cornish's primary practice is Sacramento VA Medical Center in Mather, California, part of Veterans Health Administration.
What is Dr. David R. Cornish's office phone number?
The practice phone on file for Dr. Cornish is (800) 382-8387.
What is Dr. David R. Cornish's medical license number?
Dr. Cornish holds California license G44943, one of the licenses on file in 3 states.
Which states has Dr. David R. Cornish been licensed in?
Dmand AI has state licenses on file for Dr. Cornish in California (1981 to 2027), Colorado (1985 to 2017) and Washington (1985 to 2016).
Which hospitals is Dr. David R. Cornish affiliated with?
Dr. Cornish practices at Sacramento VA Medical Center in Mather, California.
Is Dr. David R. Cornish board certified?
Yes. Dr. Cornish is board certified in gastroenterology by the American Board of Internal Medicine.
Where did Dr. David R. Cornish go to medical school?
Dr. Cornish graduated from Boston University School Of Medicine in 1980.
What drugs does Dr. David R. Cornish prescribe most?
In 2018 Medicare Part D data, Dr. Cornish's most prescribed drugs by claims were Gavilyte-C, Dicyclomine HCl and Gavilyte-G.
Has Dr. David R. Cornish received payments from drug or device companies?
CMS Open Payments shows $37 in general payments to Dr. Cornish from 1 company from 2024 to 2025. The largest total came from Olympus America Inc.
How long has Dr. David R. Cornish been practicing?
Dr. Cornish graduated from medical school in 1980, 46 years ago.
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