Kate Marie O'Brien, NP
- Medicare patients, 2024
- 30
- Part D claims, 2024
- 72
- Hospital affiliations
- 2
- Medical groups
- 3
- State license
- 1
- Practice address
- 2315 Stockton Boulevard, Sacramento, CA 95817
- Practice phone
- Call (916) 734-2011
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Kate O'Brien'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.
Kate Marie O'Brien is a nurse practitioner in Sacramento, California
Kate O'Brien practices at UC Davis Medical Center in Sacramento, California, part of University of California Health.
Kate O'Brien's NPI, 1609107887, was assigned on January 27, 2010. Kate O'Brien holds Massachusetts license RN273620.
- NPI
- 1609107887NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5991835670
- NPI enumeration date
- January 27, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (916) 734-2011
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 43
- Medical school graduation
- 2009
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Kate Marie O'Brien practices at UC Davis Medical Center in Sacramento, California
Kate O'Brien's primary practice is UC Davis Medical Center, at 2315 Stockton Boulevard, Sacramento, CA 95817 in Sacramento County. The practice phone is (916) 734-2011.
- UC Davis Medical Center2315 Stockton Boulevard, Sacramento, CA 95817 · Sacramento CountyPhone(916) 734-2011
Source: Dmand AI Affiliation Data
Kate Marie O'Brien is affiliated with 2 sites of care and 3 medical groups
Kate O'Brien's primary practice is UC Davis Medical Center in Sacramento, California, part of University of California Health. Kate O'Brien is also affiliated with Massachusetts General Hospital. The medical group on file is UC Davis Medical Group. Dmand AI also links Kate O'Brien to 2 more medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Kate Marie O'Brien's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Kate O'Brien practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| UC Davis Medical Center | Available with a free account |
| +1 more site and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Kate Marie O'Brien is one of 5,983 nurse practitioners in California
Nurse practitioner is Kate O'Brien's primary specialty in the NPI Registry, under taxonomy code 363L00000X. Kate O'Brien is licensed in Massachusetts.
Specialties and state licenses
- Nurse practitioner, MassachusettsPrimary
Nurse practitioners near Kate O'Brien
Counts of nurse practitioners 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
Kate Marie O'Brien treated 30 Medicare patients in 2024, average age 72
CMS counts 30 Medicare patients who saw Kate O'Brien in 2024. The largest group is 65 to 74, with 12 patients. 75% of them have high blood pressure, and 63% have high cholesterol. Their average risk score is 2.81, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Kate O'Brien's median patient age at 62, with 45% women.
Kate O'Brien's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Kate O'Brien's Medicare patients by sex, 2024
- Women1343%
- Men1757%
Chronic conditions among Kate O'Brien's Medicare patients, 2024
- High blood pressure75%
- High cholesterol63%
- Chronic kidney disease40%
- Heart failure37%
- Ischemic heart disease37%
Share of Medicare patients with each condition. A patient can have several.
Kate O'Brien's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 62
Patient panel by sex, all payers
- Women45%
- Men55%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Kate Marie O'Brien wrote 72 Medicare Part D claims in 2024
In 2024, Kate O'Brien wrote 72 Medicare Part D claims for 23 patients. 58% of them were for generic drugs.
Kate O'Brien's Part D claims by kind of drug, 2024
- Generic42 claims58%
- Brand-name30 claims42%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Kate Marie O'Brien takes part in Medicare
Kate O'Brien 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)
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Sources for Kate Marie O'Brien'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 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 (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) |
| 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 Kate Marie O'Brien
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Kate Marie O'Brien's NPI number?
Kate Marie O'Brien's NPI number is 1609107887. It was assigned on January 27, 2010, and it is active in the NPI Registry.
What does Kate Marie O'Brien specialize in?
Kate Marie O'Brien is a nurse practitioner in Sacramento, California. The primary specialty in the NPI Registry is Nurse Practitioner (taxonomy code 363L00000X).
Where does Kate Marie O'Brien practice?
Kate O'Brien practices at 2315 Stockton Boulevard, Sacramento, CA 95817. Kate O'Brien's primary practice is UC Davis Medical Center in Sacramento, California, part of University of California Health. Dmand AI also links Kate O'Brien to 2 medical groups.
What is Kate Marie O'Brien's office phone number?
The practice phone on file for Kate O'Brien is (916) 734-2011.
What is Kate Marie O'Brien's medical license number?
Kate O'Brien holds Massachusetts license RN273620.
Which hospitals is Kate Marie O'Brien affiliated with?
Kate O'Brien practices at UC Davis Medical Center in Sacramento, California. Kate O'Brien is also affiliated with Massachusetts General Hospital.
What medical group is Kate Marie O'Brien part of?
Kate O'Brien is linked to UC Davis Medical Group. Dmand AI links Kate O'Brien to 2 more medical groups.
Does Kate Marie O'Brien accept Medicare?
Yes. CMS lists Kate O'Brien as accepting Medicare assignment.
How many Medicare patients does Kate Marie O'Brien see?
CMS counts 30 Medicare patients who saw Kate O'Brien in 2024, with an average age of 72.
How long has Kate Marie O'Brien been practicing?
Kate O'Brien graduated from medical school in 2009, 17 years ago.
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