Dr. Elyssa J. Feinberg, MD
- Medicare services, 2024
- 402
- Medicare patients, 2026
- 212
- Part D claims, 2026
- 20
- Hospital affiliations
- 2
- Industry payments
- $324
- Practice address
- 20103 Lake Chabot Road, Castro Valley, CA 94546
- Practice phone
- Call (510) 537-1234
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Feinberg's professional email, personal email and mobile number
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Dr. Elyssa J. Feinberg is a general surgeon in Castro Valley, California
Dr. Feinberg practices at Sutter Eden Medical Center in Castro Valley, California, part of Sutter Health.
Dr. Feinberg's NPI, 1265713655, was assigned on August 30, 2011. Dr. Feinberg holds California license A119564.
- NPI
- 1265713655NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0749436582
- NPI enumeration date
- August 30, 2011
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (510) 537-1234
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 45
- Medical school graduation
- 2007
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Elyssa J. Feinberg practices at Sutter Eden Medical Center in Castro Valley, California
Dr. Feinberg's primary practice is Sutter Eden Medical Center, at 20103 Lake Chabot Road, Castro Valley, CA 94546 in Alameda County. The practice phone is (510) 537-1234.
- Sutter Eden Medical Center20103 Lake Chabot Road, Castro Valley, CA 94546 · Alameda CountyPhone(510) 537-1234
Source: Dmand AI Affiliation Data
Dr. Elyssa J. Feinberg is affiliated with 3 sites of care
Dr. Feinberg's primary practice is Sutter Eden Medical Center in Castro Valley, California, part of Sutter Health. Dr. Feinberg is also affiliated with Stanford Health Care Tri-Valley. Dmand AI also links Dr. Feinberg to 1 more physician office, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Elyssa J. Feinberg's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Feinberg practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Sutter Eden Medical Center | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dmand AI maps EHR vendors, IT decision makers and buying committees across Sutter Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Elyssa J. Feinberg is one of 2,926 general surgeons in California
Surgery is Dr. Feinberg's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Feinberg is licensed in California.
Specialties and state licenses
- Surgery, CaliforniaPrimary
General surgeons near Dr. Feinberg
Counts of general surgeons 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. Elyssa J. Feinberg billed Medicare for 402 services in 2024
CMS data shows 402 Medicare services from Dr. Feinberg across 3 procedure codes in 2024, for 212 Medicare patients. Medicare paid $52,974 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Feinberg's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 5252024: 40223%
- Surgery
- 2023: 112024: 0100%
Dr. Feinberg compared with the California median for general surgeons, 2024
- Dr. Feinberg
- California median
- Medicare services
- 402vs 1662.4 times
- Medicare patients
- 212vs 12175% above
- Part D claims
- 11vs 3468% below
Medians across 2,606 general surgeons in California with Dmand AI profiles that report each measure.
Dr. Feinberg's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Feinberg and other general surgeons in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Elyssa J. Feinberg treated 212 Medicare patients in 2026, average age 76
CMS counts 212 Medicare patients who saw Dr. Feinberg in 2026. The largest group is 65 to 74, with 69 patients. 75% of them have high blood pressure, and 74% have high cholesterol. 54% are also on Medicaid. Their average risk score is 2.03, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Feinberg's median patient age at 54, with 40% women.
Dr. Feinberg's Medicare patients by age, 2026
Dr. Feinberg's Medicare patients by sex, 2026
- Women10047%
- Men11253%
Chronic conditions among Dr. Feinberg's Medicare patients, 2026
- High blood pressure75%
- High cholesterol74%
- Diabetes44%
- Arthritis43%
- Chronic kidney disease42%
- Atrial fibrillation40%
- Ischemic heart disease37%
- Mood disorders37%
Share of Medicare patients with each condition. A patient can have several.
Dr. Feinberg's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 54
Patient panel by sex, all payers
- Women40%
- Men58%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2026 data
Dr. Elyssa J. Feinberg wrote 20 Medicare Part D claims in 2026
In 2026, Dr. Feinberg wrote 20 Medicare Part D claims for 11 patients. 90% of them were for generic drugs. CMS names the drug for 11 of them, across 1 drug with 11 or more claims each, at $51 in total drug cost. In 2016, CMS named 13 claims across 1 drug.
Dr. Feinberg's Part D claims by kind of drug, 2026
- Generic18 claims90%
- Brand-name and other2 claims10%
Dr. Feinberg's most prescribed drugs by claims, 2020
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, 2016 to 2020
- 2016
- 2020
- Claims for drugs CMS names
- 2016: 132020: 1115%
Drugs named by CMS: 1 in 2020, 1 in 2016.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2026 data
How Dr. Elyssa J. Feinberg takes part in Medicare
Dr. Feinberg 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)
Hernia repair - groin (open): 1 to 10 procedures (CMS shows small counts as a range)
Removal of tissue: 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. Elyssa J. Feinberg received $324 in industry payments from 2020 to 2025
CMS Open Payments shows 9 general payments to Dr. Feinberg from 3 drug and device companies from 2020 to 2025. Travel and lodging make up the largest share, 70% of the total. Intuitive Surgical, Inc. paid the most, $288.
General payments to Dr. Feinberg by program year, 2020 to 2025
General payments to Dr. Feinberg by kind, 2020 to 2025
- Travel and lodging$22870%
- Food and beverage$9630%
Companies that paid Dr. Feinberg the most, 2020 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Elyssa J. Feinberg'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 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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| 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) |
| 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. Elyssa J. Feinberg
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. Elyssa J. Feinberg's NPI number?
Dr. Elyssa J. Feinberg's NPI number is 1265713655. It was assigned on August 30, 2011, and it is active in the NPI Registry.
What kind of doctor is Dr. Elyssa J. Feinberg?
Dr. Elyssa J. Feinberg is a general surgeon in Castro Valley, California. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Elyssa J. Feinberg practice?
Dr. Feinberg practices at 20103 Lake Chabot Road, Castro Valley, CA 94546. Dr. Feinberg's primary practice is Sutter Eden Medical Center in Castro Valley, California, part of Sutter Health. Dmand AI also links Dr. Feinberg to 1 physician office, and a free account names each one.
What is Dr. Elyssa J. Feinberg's office phone number?
The practice phone on file for Dr. Feinberg is (510) 537-1234. Dmand AI also checks direct phone and mobile numbers, available with a free account.
What is Dr. Elyssa J. Feinberg's email address?
Dmand AI checks professional and personal email addresses for Dr. Feinberg through healthcare-specific waterfall enrichment. They are available with a free Dmand AI account.
What is Dr. Elyssa J. Feinberg's medical license number?
Dr. Feinberg holds California license A119564.
Which hospitals is Dr. Elyssa J. Feinberg affiliated with?
Dr. Feinberg practices at Sutter Eden Medical Center in Castro Valley, California. Dr. Feinberg is also affiliated with Stanford Health Care Tri-Valley.
Does Dr. Elyssa J. Feinberg accept Medicare?
Yes. CMS data shows Dr. Feinberg billed Medicare for 402 services in 2024, and Dr. Feinberg accepts Medicare assignment.
How many Medicare patients does Dr. Elyssa J. Feinberg see?
CMS counts 212 Medicare patients who saw Dr. Feinberg in 2026, with an average age of 76.
What services does Dr. Elyssa J. Feinberg bill to Medicare?
In 2024, Dr. Feinberg's most billed Medicare services were hospital inpatient care (99233), critical care (99291) and hospital inpatient care (99223).
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What drugs does Dr. Elyssa J. Feinberg prescribe most?
In 2020 Medicare Part D data, Dr. Feinberg's most prescribed drugs by claims were Hydrocodone-Acetaminophen.
Has Dr. Elyssa J. Feinberg received payments from drug or device companies?
CMS Open Payments shows $324 in general payments to Dr. Feinberg from 3 companies from 2020 to 2025. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Elyssa J. Feinberg been practicing?
Dr. Feinberg graduated from medical school in 2007, 19 years ago.
What EHR does Dr. Elyssa J. Feinberg's practice use?
Dmand AI tracks the EHR system at Sutter Eden Medical Center and at 2 more affiliated sites. The vendor and product are available with a free Dmand AI account.
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