Dr. William Robert Weissman, MD
- Part D claims, 2021
- 105
- Industry payments
- $17
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Practice address
- 981 Vale Terrace, Vista, CA 92084
- Practice phone
- Call (619) 631-5010
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Vista Community Clinic (Vale Ter)
FQHC - Main Site · Vista, California
Find Dr. Weissman'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 Robert Weissman is an internist in Encinitas, California
Dr. Weissman practices at Vista Community Clinic (Vale Ter) in Vista, California.
Dr. Weissman's NPI, 1730114992, was assigned on July 12, 2006. Dr. Weissman holds California license G15046.
- NPI
- 1730114992NPI Registry (opens in a new tab)
- NPI enumeration date
- July 12, 2006
- NPI status
- Active
- Practice phone
- (619) 631-5010
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. William Robert Weissman practices in Vista and Encinitas
Dr. Weissman's primary practice is Vista Community Clinic (Vale Ter), at 981 Vale Terrace, Vista, CA 92084 in San Diego County. The practice phone is (619) 631-5010. The NPI Registry lists Dr. Weissman's practice address as 354 Santa Fe Dr, Encinitas, CA 92024.
- Vista Community Clinic (Vale Ter)Primary981 Vale Terrace, Vista, CA 92084 · San Diego CountyPhone(619) 631-5010
- NPI Registry address354 Santa Fe Dr, Encinitas, CA 92024 · San Diego CountyPhone(760) 631-5000
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. William Robert Weissman is affiliated with 1 site of care and 1 medical group
Dr. Weissman's primary practice is Vista Community Clinic (Vale Ter) in Vista, California. The medical group on file is Vista Community Clinic.
Sources: Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. William Robert Weissman's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Weissman practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Vista Community Clinic (Vale Ter) | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. William Robert Weissman is one of 16,751 internists in California
Internal medicine is Dr. Weissman's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Weissman is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Dr. Weissman
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 Robert Weissman's patients have a median age of 57
Across all payers, Dmand AI patient panel data puts Dr. Weissman's median patient age at 57, with 62% women.
Dr. Weissman's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 57
Patient panel by sex, all payers
- Women62%
- Men36%
Source: Dmand AI Patient Panel Data
Dr. William Robert Weissman wrote 105 Medicare Part D claims in 2021
In 2021, Dr. Weissman wrote 105 Medicare Part D claims. Every claim was for a generic drug. They cover 5 drugs, with $1,418 in total drug cost. In 2020, CMS named 339 claims across 15 drugs.
Dr. Weissman'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: 3392021: 10569%
Drugs named by CMS: 5 in 2021, 15 in 2020.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. William Robert Weissman received $17 in industry payments in 2016
CMS Open Payments shows 1 general payment to Dr. Weissman from 1 drug or device company in 2016. Food and beverage make up the largest share, 100% of the total. Sanofi and Genzyme US Companies paid the most, $17.
Companies that paid Dr. Weissman the most, 2016 to 2016
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. William Robert Weissman'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 DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand 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) |
| 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 Robert Weissman
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What is Dr. William Robert Weissman's NPI number?
Dr. William Robert Weissman's NPI number is 1730114992. It was assigned on July 12, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. William Robert Weissman?
Dr. William Robert Weissman is an internist in Encinitas, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. William Robert Weissman practice?
Dr. Weissman practices at 981 Vale Terrace, Vista, CA 92084. Dr. Weissman also practices at 354 Santa Fe Dr, Encinitas, CA 92024. Dr. Weissman's primary practice is Vista Community Clinic (Vale Ter) in Vista, California.
What is Dr. William Robert Weissman's office phone number?
The practice phone on file for Dr. Weissman is (619) 631-5010.
What is Dr. William Robert Weissman's medical license number?
Dr. Weissman holds California license G15046.
What medical group is Dr. William Robert Weissman part of?
Dr. Weissman is linked to Vista Community Clinic.
What drugs does Dr. William Robert Weissman prescribe most?
In 2021 Medicare Part D data, Dr. Weissman's most prescribed drugs by claims were Atorvastatin Calcium, Lisinopril and Hydrochlorothiazide.
Has Dr. William Robert Weissman received payments from drug or device companies?
CMS Open Payments shows $17 in general payments to Dr. Weissman from 1 company from 2016 to 2016. The largest total came from Sanofi and Genzyme US Companies.
How long has Dr. William Robert Weissman been practicing?
Dr. Weissman's NPI was assigned in 2006.
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