Curr Gastroenterol Rep
Clostridioides difficileDonor SelectionEnterocolitis, Pseudomembranous
Dr. Jeffrey S. Weissman, MD
NPI1619130994PAC ID9032366539
- Part D claims, 2024
- 863
- Publications
- 1
- Hospital affiliations
- 3
- Industry payments
- $488
- Medical group
- 1
- Practice address
- 9455 Clairemont Mesa Blvd, San Diego, CA 92123
- Practice phone
- Call (619) 528-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Kaiser Permanente San Diego Medical Center
San Diego, 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. Jeffrey S. Weissman is an internist in San Diego, California
Dr. Weissman practices at Kaiser Permanente San Diego Medical Center in San Diego, California.
Dr. Weissman's NPI, 1619130994, was assigned on July 7, 2008. Dr. Weissman graduated from UC San Diego School of Medicine in 2006. Dr. Weissman holds California license A103001.
NPI and contact details
- NPI
- 1619130994NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9032366539
- NPI enumeration date
- July 7, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (619) 528-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 46
- Medical school graduation
- 2006
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jeffrey S. Weissman practices at Kaiser Permanente San Diego Medical Center in San Diego, California
Dr. Weissman's primary practice is Kaiser Permanente San Diego Medical Center, at 9455 Clairemont Mesa Blvd, San Diego, CA 92123 in San Diego County. The practice phone is (619) 528-5000.
- Kaiser Permanente San Diego Medical Center9455 Clairemont Mesa Blvd, San Diego, CA 92123 · San Diego CountyPhone(619) 528-5000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Jeffrey S. Weissman is affiliated with 4 sites of care and 1 medical group
Dr. Weissman's primary practice is Kaiser Permanente San Diego Medical Center in San Diego, California. Dr. Weissman is also affiliated with Hillcrest Medical Center. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Dr. Weissman to 2 more hospitals, each named with a free account.
Kaiser Permanente San Diego Medical CenterPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Jeffrey S. Weissman's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Weissman practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Kaiser Permanente San Diego Medical Center | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Jeffrey S. 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 board certified in gastroenterology by the American Board of Internal Medicine. Dr. Weissman is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Clinical focus
Dmand AI lists upper GI endoscopy among the conditions Dr. Weissman treats.
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. Jeffrey S. Weissman's patients have a median age of 59
Across all payers, Dmand AI patient panel data puts Dr. Weissman's median patient age at 59, with 54% 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 59
Patient panel by sex, all payers
- Women54%
- Men46%
Source: Dmand AI Patient Panel Data
Dr. Jeffrey S. Weissman wrote 863 Medicare Part D claims in 2024
In 2024, Dr. Weissman wrote 863 Medicare Part D claims for 436 patients. 83% of them were for generic drugs. CMS names the drug for 652 of them, across 12 drugs with 11 or more claims each, at $104,887 in total drug cost. In 2023, CMS named 601 claims across 13 drugs.
Part D claims, 2024863
Drugs named by CMS12
Total drug cost$104,887
Part D patients436
Dr. Weissman's Part D claims by kind of drug, 2024
- Generic719 claims83%
- Brand-name144 claims17%
Dr. Weissman's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Weissman's Part D claims, 2024
- Antibiotics6%52 of 863 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 6012024: 6528%
Drugs named by CMS: 12 in 2024, 13 in 2023.
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
How Dr. Jeffrey S. Weissman takes part in Medicare
Dr. Weissman accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)
Upper gastrointestinal (GI) endoscopy for acid reflux: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Jeffrey S. Weissman has 1 publication on record
Dmand AI links 1 paper to Dr. Weissman. Dr. Weissman's most frequent co-author is Walter J. Coyle, MD.
Papers1
Dr. Weissman's most frequent co-authors
Recent publications by Dr. Weissman
See who Dr. Weissman researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Weissman works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Jeffrey S. Weissman received $488 in industry payments from 2016 to 2022
CMS Open Payments shows 5 general payments to Dr. Weissman from 3 drug and device companies from 2016 to 2022. Food and beverage make up the largest share, 100% of the total. Cook Medical LLC paid the most, $275.
General payments to Dr. Weissman by program year, 2016 to 2022
Companies that paid Dr. Weissman the most, 2016 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Jeffrey S. Weissman graduated from UC San Diego School of Medicine
Dr. Weissman graduated from UC San Diego School of Medicine in 2006. Dr. Weissman is a member of ACG.
- Medical school
- Board certified in gastroenterology
Source: Dmand AI Professional Profile Data
Dr. Jeffrey S. Weissman accepts plans from 2 insurance carriers
Dr. Weissman is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
- CMS Medicare
Plan types Dr. Weissman accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Jeffrey S. 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 Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Jeffrey S. Weissman
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. Jeffrey S. Weissman's NPI number?
Dr. Jeffrey S. Weissman's NPI number is 1619130994. It was assigned on July 7, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Jeffrey S. Weissman?
Dr. Jeffrey S. Weissman is an internist in San Diego, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Jeffrey S. Weissman practice?
Dr. Weissman practices at 9455 Clairemont Mesa Blvd, San Diego, CA 92123. Dr. Weissman's primary practice is Kaiser Permanente San Diego Medical Center in San Diego, California. Dmand AI also links Dr. Weissman to 2 hospitals.
What is Dr. Jeffrey S. Weissman's office phone number?
The practice phone on file for Dr. Weissman is (619) 528-5000.
What is Dr. Jeffrey S. Weissman's medical license number?
Dr. Weissman holds California license A103001.
Which hospitals is Dr. Jeffrey S. Weissman affiliated with?
Dr. Weissman is affiliated with Hillcrest Medical Center. Dmand AI links Dr. Weissman to 2 more hospitals.
What medical group is Dr. Jeffrey S. Weissman part of?
Dr. Weissman is linked to Southern California Permanente Medical Group.
Does Dr. Jeffrey S. Weissman accept Medicare?
Yes. CMS lists Dr. Weissman as accepting Medicare assignment.
Is Dr. Jeffrey S. Weissman board certified?
Yes. Dr. Weissman is board certified in gastroenterology by the American Board of Internal Medicine.
Where did Dr. Jeffrey S. Weissman go to medical school?
Dr. Weissman graduated from UC San Diego School of Medicine in 2006.
Show 6 more questionsShow fewer questions
What drugs does Dr. Jeffrey S. Weissman prescribe most?
In 2024 Medicare Part D data, Dr. Weissman's most prescribed drugs by claims were Gavilyte-C, Omeprazole and Mesalamine.
Has Dr. Jeffrey S. Weissman received payments from drug or device companies?
CMS Open Payments shows $488 in general payments to Dr. Weissman from 3 companies from 2016 to 2022. The largest total came from Cook Medical LLC.
How long has Dr. Jeffrey S. Weissman been practicing?
Dr. Weissman graduated from medical school in 2006, 20 years ago.
Does Dr. Jeffrey S. Weissman do research?
Dmand AI links 1 publication to Dr. Weissman.
Who does Dr. Jeffrey S. Weissman publish with?
Dr. Weissman's most frequent co-authors are Walter J. Coyle, MD (1 shared paper).
What insurance does Dr. Jeffrey S. Weissman accept?
Dr. Weissman is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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