Dr. George E. Rishwain, MD
- Medicare services, 2021
- 138
- Part D claims, 2021
- 450
- Industry payments
- $9,596
- Affiliated sites
- 1
- State license
- 1
- Practice address
- 1805 N California St Ste 309 Suite 309, Stockton, CA 95204-6032
- Practice phone
- Call (209) 464-6000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Endocrinology & Gastroenterology-Stockton CA
Physician office · Stockton, California
Find Dr. Rishwain'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. George E. Rishwain is a gastroenterologist in Stockton, California
Dr. Rishwain practices at Endocrinology & Gastroenterology-Stockton CA in Stockton, California.
Dr. Rishwain's NPI, 1598738122, was assigned on February 13, 2006. Dr. Rishwain holds California license G38366.
- NPI
- 1598738122NPI Registry (opens in a new tab)
- NPI enumeration date
- February 13, 2006
- NPI status
- Active
- Practice phone
- (209) 464-6000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. George E. Rishwain practices at 2 locations in Stockton, California
Dr. Rishwain's primary practice is Endocrinology & Gastroenterology-Stockton CA, at 1805 N California St Ste 309 Suite 309, Stockton, CA 95204-6032. The practice phone is (209) 464-6000. The NPI Registry lists Dr. Rishwain's practice address as 782 E Harding Way, Stockton, CA 95204-6101.
- Endocrinology & Gastroenterology-Stockton CAPrimary1805 N California St Ste 309 Suite 309, Stockton, CA 95204-6032Phone(209) 464-6000
- NPI Registry address782 E Harding Way, Stockton, CA 95204-6101Phone(209) 475-5500
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. George E. Rishwain is affiliated with 1 site of care
Dr. Rishwain's primary practice is Endocrinology & Gastroenterology-Stockton CA in Stockton, California.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. George E. Rishwain's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Rishwain practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Endocrinology & Gastroenterology-Stockton CA | 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 each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. George E. Rishwain is one of 1,977 gastroenterologists in California
Gastroenterology is Dr. Rishwain's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Rishwain is licensed in California.
Specialties and state licenses
- Gastroenterology, CaliforniaPrimary
Gastroenterologists near Dr. Rishwain
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. George E. Rishwain billed Medicare for 138 services in 2021
CMS data shows 138 Medicare services from Dr. Rishwain across 5 procedure codes in 2021. Medicare paid $13,680 for them.
Dr. Rishwain's Medicare services by type, 2020 to 2021
- 2020
- 2021
- Office and hospital visits
- 2020: 2542021: 7371%
- Surgery
- 2020: 2212021: 6571%
- Other services
- 2020: 512021: 0100%
Where Dr. Rishwain's Medicare services took place, 2021
- In an office7353%
- In a facility6547%
Dr. Rishwain compared with the California median for gastroenterologists, 2021
- Dr. Rishwain
- California median
- Medicare services
- 138vs 58676% below
- Part D claims
- 450vs 38018% above
Medians across 1,875 gastroenterologists in California with Dmand AI profiles that report each measure.
Dr. Rishwain's most billed Medicare procedure codes, 2021
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. Rishwain?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Rishwain and other gastroenterologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. George E. Rishwain's patients have a median age of 64
Across all payers, Dmand AI patient panel data puts Dr. Rishwain's median patient age at 64, with 44% women.
Dr. Rishwain's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 64
Patient panel by sex, all payers
- Women44%
- Men56%
Source: Dmand AI Patient Panel Data
Dr. George E. Rishwain wrote 450 Medicare Part D claims in 2021
In 2021, Dr. Rishwain wrote 450 Medicare Part D claims. They cover 8 drugs, with $46,108 in total drug cost. In 2020, CMS named 993 claims across 21 drugs.
Dr. Rishwain's most prescribed drugs by claims, 2021
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, 2020 to 2021
- 2020
- 2021
- Claims for drugs CMS names
- 2020: 9932021: 45055%
Drugs named by CMS: 8 in 2021, 21 in 2020.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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. George E. Rishwain received $9,596 in industry payments from 2016 to 2021
CMS Open Payments shows 99 general payments to Dr. Rishwain from 6 drug and device companies from 2016 to 2021. Consulting fees make up the largest share, 59% of the total. Gilead Sciences, Inc. paid the most, $8,726.
General payments to Dr. Rishwain by program year, 2016 to 2021
General payments to Dr. Rishwain by kind, 2016 to 2021
- Consulting fees$5,70059%
- Food and beverage$2,49626%
- Travel and lodging$1,40015%
Companies that paid Dr. Rishwain the most, 2016 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. George E. Rishwain'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation 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 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) |
| 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. George E. Rishwain
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. George E. Rishwain's NPI number?
Dr. George E. Rishwain's NPI number is 1598738122. It was assigned on February 13, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. George E. Rishwain?
Dr. George E. Rishwain is a gastroenterologist in Stockton, California. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. George E. Rishwain practice?
Dr. Rishwain practices at 1805 N California St Ste 309 Suite 309, Stockton, CA 95204-6032. Dr. Rishwain also practices at 782 E Harding Way, Stockton, CA 95204-6101. Dr. Rishwain's primary practice is Endocrinology & Gastroenterology-Stockton CA in Stockton, California.
What is Dr. George E. Rishwain's office phone number?
The practice phone on file for Dr. Rishwain is (209) 464-6000.
What is Dr. George E. Rishwain's medical license number?
Dr. Rishwain holds California license G38366.
Does Dr. George E. Rishwain accept Medicare?
Yes. CMS data shows Dr. Rishwain billed Medicare for 138 services in 2021.
What services does Dr. George E. Rishwain bill to Medicare?
In 2021, Dr. Rishwain's most billed Medicare services were office visit, established patient (99214), surgery: digestive system (45385) and surgery: digestive system (43239).
What drugs does Dr. George E. Rishwain prescribe most?
In 2021 Medicare Part D data, Dr. Rishwain's most prescribed drugs by claims were Pantoprazole Sodium, Omeprazole and Dicyclomine HCl.
Has Dr. George E. Rishwain received payments from drug or device companies?
CMS Open Payments shows $9,596 in general payments to Dr. Rishwain from 6 companies from 2016 to 2021. The largest total came from Gilead Sciences, Inc.
How long has Dr. George E. Rishwain been practicing?
Dr. Rishwain's NPI was assigned in 2006.
Selling to gastroenterology practices?
See gastroenterologists 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