Catherine M. O'Brien, FNP
- Medicare patients, 2024
- 749
- Part D claims, 2024
- 813
- MIPS score, 2024
- 87
- Hospital affiliations
- 1
- Industry payments
- $1,447
- Practice address
- 19472 Us Route 11 Suite N101 Suite N101, Watertown, NY 13601-6897
- Practice phone
- Call (315) 786-1924
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Northern Nurse Practitioners-family Health
NP / PA-led clinic · Watertown, New York
Find Catherine 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.
Catherine M. O'Brien is a family nurse practitioner in Watertown, New York
Catherine O'Brien practices at Northern Nurse Practitioners-family Health in Watertown, New York.
Catherine O'Brien's NPI, 1154330751, was assigned on August 5, 2006. Catherine O'Brien holds New York license F332600-1.
- NPI
- 1154330751NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7618956954
- NPI enumeration date
- August 5, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (315) 786-1924
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 54
- Medical school graduation
- 1998
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Catherine M. O'Brien practices at Northern Nurse Practitioners-family Health in Watertown, New York
Catherine O'Brien's primary practice is Northern Nurse Practitioners-family Health, at 19472 Us Route 11 Suite N101 Suite N101, Watertown, NY 13601-6897. The practice phone is (315) 786-1924.
- Northern Nurse Practitioners-family Health19472 Us Route 11 Suite N101 Suite N101, Watertown, NY 13601-6897Phone(315) 786-1924
Source: Dmand AI Affiliation Data
Catherine M. O'Brien is affiliated with 3 sites of care and 1 medical group
Catherine O'Brien's primary practice is Northern Nurse Practitioners-family Health in Watertown, New York. Catherine O'Brien is also affiliated with Samaritan Medical Center. The medical group on file is Northern Nurse Practitioners. Dmand AI also links Catherine O'Brien to 1 more home health agency, named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Catherine M. O'Brien's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Catherine O'Brien practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Northern Nurse Practitioners-family Health | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Catherine M. O'Brien is one of 10,214 family nurse practitioners in New York
Family is Catherine O'Brien's primary specialty in the NPI Registry, under taxonomy code 363LF0000X. Catherine O'Brien is licensed in New York.
Specialties and state licenses
- Family nurse practitioner, New YorkPrimary
Family nurse practitioners near Catherine O'Brien
Counts of family 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
Catherine M. O'Brien treated 749 Medicare patients in 2024, average age 76
CMS counts 749 Medicare patients who saw Catherine O'Brien in 2024. The largest group is 65 to 74, with 326 patients. 75% of them have high cholesterol, and 72% have high blood pressure. 4% are also on Medicaid. Their average risk score is 0.92, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Catherine O'Brien's median patient age at 58, with 65% women.
Catherine O'Brien's Medicare patients by age, 2024
Catherine O'Brien's Medicare patients by sex, 2024
- Women43658%
- Men31342%
Chronic conditions among Catherine O'Brien's Medicare patients, 2024
- High cholesterol75%
- High blood pressure72%
- Arthritis48%
- Diabetes24%
- Chronic kidney disease19%
- Ischemic heart disease19%
- Anxiety17%
- Mood disorders17%
Share of Medicare patients with each condition. A patient can have several.
Catherine 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 58
Patient panel by sex, all payers
- Women65%
- Men35%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Catherine M. O'Brien wrote 813 Medicare Part D claims in 2024
In 2024, Catherine O'Brien wrote 813 Medicare Part D claims for 340 patients. 83% of them were for generic drugs.
Catherine O'Brien's Part D claims by kind of drug, 2024
- Generic673 claims83%
- Brand-name140 claims17%
Drug classes CMS tracks in Catherine O'Brien's Part D claims, 2024
- Antibiotics8%61 of 813 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Catherine M. O'Brien scored 87 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 87 out of 100 for Catherine O'Brien for performance year 2024, reported as part of a group. Catherine O'Brien accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Catherine O'Brien's MIPS scores, performance year 2024
- 87of 100Final score
- 74.3of 100Quality
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Catherine M. O'Brien received $1,447 in industry payments in 2025
CMS Open Payments shows 57 general payments to Catherine O'Brien from 13 drug and device companies in 2025. Food and beverage make up the largest share, 88% of the total. Janssen Pharmaceuticals, Inc paid the most, $318.
General payments to Catherine O'Brien by kind, 2025 to 2025
- Food and beverage$1,26688%
- Education$18112%
Companies that paid Catherine O'Brien the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Catherine M. 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 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)Clinician Public Reporting: Overall MIPS Performance (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 Catherine M. 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 Catherine M. O'Brien's NPI number?
Catherine M. O'Brien's NPI number is 1154330751. It was assigned on August 5, 2006, and it is active in the NPI Registry.
What does Catherine M. O'Brien specialize in?
Catherine M. O'Brien is a family nurse practitioner in Watertown, New York. The primary specialty in the NPI Registry is Family Nurse Practitioner (taxonomy code 363LF0000X).
Where does Catherine M. O'Brien practice?
Catherine O'Brien practices at 19472 Us Route 11 Suite N101 Suite N101, Watertown, NY 13601-6897. Catherine O'Brien's primary practice is Northern Nurse Practitioners-family Health in Watertown, New York. Dmand AI also links Catherine O'Brien to 1 home health agency.
What is Catherine M. O'Brien's office phone number?
The practice phone on file for Catherine O'Brien is (315) 786-1924.
What is Catherine M. O'Brien's medical license number?
Catherine O'Brien holds New York license F332600-1.
Which hospitals is Catherine M. O'Brien affiliated with?
Catherine O'Brien is affiliated with Samaritan Medical Center.
What medical group is Catherine M. O'Brien part of?
Catherine O'Brien is linked to Northern Nurse Practitioners.
Does Catherine M. O'Brien accept Medicare?
Yes. CMS lists Catherine O'Brien as accepting Medicare assignment.
What is Catherine M. O'Brien's MIPS score?
Catherine O'Brien's MIPS final score for performance year 2024 is 87 out of 100, reported as part of a group.
How many Medicare patients does Catherine M. O'Brien see?
CMS counts 749 Medicare patients who saw Catherine O'Brien in 2024, with an average age of 76.
Has Catherine M. O'Brien received payments from drug or device companies?
CMS Open Payments shows $1,447 in general payments to Catherine O'Brien from 13 companies from 2025 to 2025. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Catherine M. O'Brien been practicing?
Catherine O'Brien graduated from medical school in 1998, 28 years ago.
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