Dr. Elizabeth Brennan, MD
- Industry payments
- $63
- Insurance carriers
- 4
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 2850 Commercial Crossing, Santa Cruz, CA 95065-1702
- Practice phone
- Call (831) 458-5511
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Brennan'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. Elizabeth Brennan is an internist in Santa Cruz, California
Dr. Brennan practices in Santa Cruz, California.
Dr. Brennan's NPI, 1982794855, was assigned on October 13, 2006. Dr. Brennan graduated from David Geffen School of Medicine at UCLA in 1992. Dr. Brennan's California license number on file is G79874.
- NPI
- 1982794855NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4688674823
- NPI enumeration date
- October 13, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (831) 458-5511
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 60
- Medical school graduation
- 1992
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Elizabeth Brennan's practice address is in Santa Cruz, California
Dr. Brennan's practice address in the NPI Registry is 2850 Commercial Crossing, Santa Cruz, CA 95065-1702. The practice phone is (831) 458-5511.
- NPI Registry address2850 Commercial Crossing, Santa Cruz, CA 95065-1702Phone(831) 458-5511
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Elizabeth Brennan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Brennan practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr. Brennan's practice | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Elizabeth Brennan is one of 16,751 internists in California
Internal medicine is Dr. Brennan's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Brennan has a license on file in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Dr. Brennan
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. Elizabeth Brennan's patients have a median age of 68
Across all payers, Dmand AI patient panel data puts Dr. Brennan's median patient age at 68, with 50% women.
Dr. Brennan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women50%
- Men50%
Source: Dmand AI Patient Panel Data
How Dr. Elizabeth Brennan takes part in Medicare
Dr. Brennan accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
Dr. Elizabeth Brennan received $63 in industry payments in 2024
CMS Open Payments shows 3 general payments to Dr. Brennan from 1 drug or device company in 2024. Food and beverage make up the largest share, 100% of the total. Abbott Laboratories paid the most, $63.
Companies that paid Dr. Brennan the most, 2024 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Elizabeth Brennan graduated from David Geffen School of Medicine at UCLA
Dr. Brennan graduated from David Geffen School of Medicine at UCLA in 1992.
- Medical school
Source: Dmand AI Professional Profile Data
Dr. Elizabeth Brennan accepts plans from 4 insurance carriers
Dr. Brennan is in network with 4 carriers, including Elevance, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 4. Check the plan with the practice before a visit.
- Elevance
- Blue Cross Blue Shield of Massachusetts
- HCSC
- CMS Medicare
Plan types Dr. Brennan accepts, by number of carriers
- Medicare4
- PPO3
- HMO1
- Medicaid1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Elizabeth Brennan'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 |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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. Elizabeth Brennan
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. Elizabeth Brennan's NPI number?
Dr. Elizabeth Brennan's NPI number is 1982794855. It was assigned on October 13, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Elizabeth Brennan?
Dr. Elizabeth Brennan is an internist in Santa Cruz, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Elizabeth Brennan practice?
Dr. Brennan practices at 2850 Commercial Crossing, Santa Cruz, CA 95065-1702.
What is Dr. Elizabeth Brennan's office phone number?
The practice phone on file for Dr. Brennan is (831) 458-5511.
What is Dr. Elizabeth Brennan's medical license number?
Dr. Brennan's California license number on file is G79874.
Does Dr. Elizabeth Brennan accept Medicare?
Yes. CMS lists Dr. Brennan as accepting Medicare assignment.
Where did Dr. Elizabeth Brennan go to medical school?
Dr. Brennan graduated from David Geffen School of Medicine at UCLA in 1992.
Has Dr. Elizabeth Brennan received payments from drug or device companies?
CMS Open Payments shows $63 in general payments to Dr. Brennan from 1 company from 2024 to 2024. The largest total came from Abbott Laboratories.
How long has Dr. Elizabeth Brennan been practicing?
Dr. Brennan graduated from medical school in 1992, 34 years ago.
What insurance does Dr. Elizabeth Brennan accept?
Dr. Brennan is in network with 4 carriers, including Elevance, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 4. Check the plan with the practice before a visit.
Selling to internal medicine practices?
See internists in California by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card