Dr. Elyssa J. Feinberg, MD

  • Castro Valley, CA
  • General surgeon
NPI1265713655PAC ID0749436582
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
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Personal email
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Mobile number
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Social profiles

Primary practice

Sutter Eden Medical Center

Hospital · Castro Valley, California

See all 3 affiliations

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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 and contact details
Medicare PAC ID
0749436582
NPI enumeration date
August 30, 2011
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(510) 537-1234
Professional email
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Personal email
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Mobile number
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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.

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.

See all 3 affiliations for Dr. Feinberg

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.

EHR by site
SiteEHR vendor and product
Sutter Eden Medical CenterAvailable with a free account
+2 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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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, CaliforniaPrimaryLicense A119564 · taxonomy 208600000X

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.

Medicare services, 2024402
Medicare patients212
Paid by Medicare$52,974
Procedure codes3

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.

See all procedures by Dr. Feinberg

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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.

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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.

Medicare patients, 2026212
Average age76
Average risk score2.03
Also on Medicaid54%

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

  1. High blood pressure75%
  2. High cholesterol74%
  3. Diabetes44%
  4. Arthritis43%
  5. Chronic kidney disease42%
  6. Atrial fibrillation40%
  7. Ischemic heart disease37%
  8. 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.

Part D claims, 202620
Drugs named by CMS1
Total drug cost$51
Part D patients11

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.

See all prescribing by Dr. Feinberg

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

$324in total
  • 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.

See all payments to Dr. Feinberg

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Sources for Dr. Elyssa J. Feinberg's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand 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).

Show 4 more questionsShow fewer questions

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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