Dr. Roy Eugene Breen, MD
- Medicare services, 2016
- 209
- Part D claims, 2016
- 63
- Hospital affiliations
- 1
- Medical groups
- 2
- State license
- 1
- Practice address
- 900 E Hamilton Ave, Campbell, CA 95008
- Practice phone
- Call (469) 466-7007
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Signify Health
Campbell, California
Find Dr. Breen'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. Roy Eugene Breen is a colorectal surgeon in Campbell, California
Dr. Breen practices at Signify Health in Campbell, California.
Dr. Breen's NPI, 1164594248, was assigned on November 14, 2006. Dr. Breen graduated from University of California, Irvine, California College of Medicine in 1978. Dr. Breen holds Oregon license 12258.
- NPI
- 1164594248NPI Registry (opens in a new tab)
- NPI enumeration date
- November 14, 2006
- NPI status
- Active
- Practice phone
- (469) 466-7007
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 74
- Medical school graduation
- 1978
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Roy Eugene Breen practices at Signify Health in Campbell, California
Dr. Breen's primary practice is Signify Health, at 900 E Hamilton Ave, Campbell, CA 95008 in Santa Clara County. The practice phone is (469) 466-7007.
- Signify Health900 E Hamilton Ave, Campbell, CA 95008 · Santa Clara CountyPhone(469) 466-7007
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Roy Eugene Breen is affiliated with 2 sites of care and 2 medical groups
Dr. Breen's primary practice is Signify Health in Campbell, California. Dr. Breen is also affiliated with Providence Portland Medical Center. The medical group on file is Signify Health. Dmand AI also links Dr. Breen to 1 more medical group, named with a free account.
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. Roy Eugene Breen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Breen practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Signify Health | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Roy Eugene Breen is one of 187 colorectal surgeons in California
Colon and rectal surgery is Dr. Breen's primary specialty in the NPI Registry, under taxonomy code 208C00000X. Dr. Breen is licensed in Oregon.
Specialties and state licenses
- Colon and rectal surgery, OregonPrimary
Colorectal surgeons near Dr. Breen
Counts of colorectal 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. Roy Eugene Breen billed Medicare for 209 services in 2016
CMS data shows 209 Medicare services from Dr. Breen across 6 procedure codes in 2016. Medicare paid $15,458 for them. Every service was in an office.
Dr. Breen's Medicare services by type, 2016
- Surgery112
- Office and hospital visits97
Dr. Breen compared with the California median for colorectal surgeons, 2016
- Dr. Breen
- California median
- Medicare services
- 209vs 27023% below
- Part D claims
- 63vs 7111% below
Medians across 175 colorectal surgeons in California with Dmand AI profiles that report each measure.
Dr. Breen's most billed Medicare procedure codes, 2016
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. Breen and other colorectal surgeons in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Roy Eugene Breen's patients have a median age of 72
Across all payers, Dmand AI patient panel data puts Dr. Breen's median patient age at 72, with 51% women.
Dr. Breen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women51%
- Men49%
Source: Dmand AI Patient Panel Data
Dr. Roy Eugene Breen wrote 63 Medicare Part D claims in 2016
In 2016, Dr. Breen wrote 63 Medicare Part D claims. They cover 4 drugs, with $4,960 in total drug cost.
Dr. Breen's most prescribed drugs by claims, 2016
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Roy Eugene Breen graduated from University of California, Irvine, California College of Medicine
Dr. Breen graduated from University of California, Irvine, California College of Medicine in 1978.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Roy Eugene Breen'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 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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (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. Roy Eugene Breen
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. Roy Eugene Breen's NPI number?
Dr. Roy Eugene Breen's NPI number is 1164594248. It was assigned on November 14, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Roy Eugene Breen?
Dr. Roy Eugene Breen is a colorectal surgeon in Campbell, California. The primary specialty in the NPI Registry is Colon & Rectal Surgery Physician (taxonomy code 208C00000X).
Where does Dr. Roy Eugene Breen practice?
Dr. Breen practices at 900 E Hamilton Ave, Campbell, CA 95008. Dr. Breen's primary practice is Signify Health in Campbell, California. Dmand AI also links Dr. Breen to 1 medical group.
What is Dr. Roy Eugene Breen's office phone number?
The practice phone on file for Dr. Breen is (469) 466-7007.
What is Dr. Roy Eugene Breen's medical license number?
Dr. Breen holds Oregon license 12258.
Which hospitals is Dr. Roy Eugene Breen affiliated with?
Dr. Breen is affiliated with Providence Portland Medical Center.
What medical group is Dr. Roy Eugene Breen part of?
Dr. Breen is linked to Signify Health. Dmand AI links Dr. Breen to 1 more medical group.
Does Dr. Roy Eugene Breen accept Medicare?
Yes. CMS data shows Dr. Breen billed Medicare for 209 services in 2016.
What services does Dr. Roy Eugene Breen bill to Medicare?
In 2016, Dr. Breen's most billed Medicare services were surgery: digestive system (46600), surgery: digestive system (46500) and office visit, established patient (99213).
Where did Dr. Roy Eugene Breen go to medical school?
Dr. Breen graduated from University of California, Irvine, California College of Medicine in 1978.
What drugs does Dr. Roy Eugene Breen prescribe most?
In 2016 Medicare Part D data, Dr. Breen's most prescribed drugs by claims were Suprep, Lidocaine and Ciprofloxacin HCl.
How long has Dr. Roy Eugene Breen been practicing?
Dr. Breen graduated from medical school in 1978, 48 years ago.
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