Dr. Gerald S. Besses, MD
- Industry payments
- $17
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 124 Sunny Hill Dr, Petaluma, CA 94952-4749
- Practice phone
- Call (707) 658-2799
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Besses' 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. Gerald S. Besses is an internist in Petaluma, California
Dr. Besses practices in Petaluma, California.
Dr. Besses' NPI, 1124047311, was assigned on July 19, 2006. Dr. Besses graduated from Sidney Kimmel Medical College in 1970. Dr. Besses' California license number on file is G22553.
- NPI
- 1124047311NPI Registry (opens in a new tab)
- NPI enumeration date
- July 19, 2006
- NPI status
- Active
- Practice phone
- (707) 658-2799
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Medical school graduation
- 1970
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. Gerald S. Besses' practice address is in Petaluma, California
Dr. Besses' practice address in the NPI Registry is 124 Sunny Hill Dr, Petaluma, CA 94952-4749. The practice phone is (707) 658-2799.
- NPI Registry address124 Sunny Hill Dr, Petaluma, CA 94952-4749Phone(707) 658-2799
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Gerald S. Besses' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Besses practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr. Besses' practice | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Gerald S. Besses is one of 16,751 internists in California
Internal medicine is Dr. Besses' primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Besses has a license on file in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Dr. Besses
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. Gerald S. Besses received $17 in industry payments in 2021
CMS Open Payments shows 1 general payment to Dr. Besses from 1 drug or device company in 2021. Food and beverage make up the largest share, 100% of the total. Amarin Pharma Inc. paid the most, $17.
Companies that paid Dr. Besses the most, 2021 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Gerald S. Besses graduated from Sidney Kimmel Medical College
Dr. Besses graduated from Sidney Kimmel Medical College in 1970.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Gerald S. Besses'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 Practice Data |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Gerald S. Besses
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. Gerald S. Besses' NPI number?
Dr. Gerald S. Besses' NPI number is 1124047311. It was assigned on July 19, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Gerald S. Besses?
Dr. Gerald S. Besses is an internist in Petaluma, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Gerald S. Besses practice?
Dr. Besses practices at 124 Sunny Hill Dr, Petaluma, CA 94952-4749.
What is Dr. Gerald S. Besses' office phone number?
The practice phone on file for Dr. Besses is (707) 658-2799.
What is Dr. Gerald S. Besses' medical license number?
Dr. Besses' California license number on file is G22553.
Where did Dr. Gerald S. Besses go to medical school?
Dr. Besses graduated from Sidney Kimmel Medical College in 1970.
Has Dr. Gerald S. Besses received payments from drug or device companies?
CMS Open Payments shows $17 in general payments to Dr. Besses from 1 company from 2021 to 2021. The largest total came from Amarin Pharma Inc.
How long has Dr. Gerald S. Besses been practicing?
Dr. Besses graduated from medical school in 1970, 56 years ago.
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