Ellen Hucal O'Halloran, PA-C
- Medicare services, 2024
- 37
- Medicare patients, 2024
- 33
- Part D claims, 2024
- 39
- MIPS score, 2024
- 97
- Hospital affiliations
- 1
- Practice address
- 75 Nielson Street, Watsonville, CA 95076
- Practice phone
- Call (831) 724-4741
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Ellen O'Halloran's professional email, personal email and mobile number
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Ellen Hucal O'Halloran is a physician assistant in Watsonville, California
Ellen O'Halloran practices at Watsonville Community Hospital in Watsonville, California, part of Pajaro Valley Health Care District.
Ellen O'Halloran's NPI, 1346618071, was assigned on September 11, 2015. Ellen O'Halloran holds California license PA52551.
- NPI
- 1346618071NPI Registry (opens in a new tab)
- NPI enumeration date
- September 11, 2015
- NPI status
- Active
- Practice phone
- (831) 724-4741
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Ellen Hucal O'Halloran practices at Watsonville Community Hospital in Watsonville, California
Ellen O'Halloran's primary practice is Watsonville Community Hospital, at 75 Nielson Street, Watsonville, CA 95076 in Santa Cruz County. The practice phone is (831) 724-4741.
- Watsonville Community Hospital75 Nielson Street, Watsonville, CA 95076 · Santa Cruz CountyPhone(831) 724-4741
Source: Dmand AI Affiliation Data
Ellen Hucal O'Halloran is affiliated with 1 site of care and 1 medical group
Ellen O'Halloran's primary practice is Watsonville Community Hospital in Watsonville, California, part of Pajaro Valley Health Care District. The medical group on file is Vituity.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Ellen Hucal O'Halloran's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Ellen O'Halloran practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Watsonville Community Hospital | Available with a free account |
Source: Dmand AI Technology Install Data
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Ellen Hucal O'Halloran is one of 11,482 physician assistants in California
Physician assistant is Ellen O'Halloran's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Ellen O'Halloran is licensed in California.
Specialties and state licenses
- Physician assistant, CaliforniaPrimary
Physician assistants near Ellen O'Halloran
Counts of physician assistants 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
Ellen Hucal O'Halloran billed Medicare for 37 services in 2024
CMS data shows 37 Medicare services from Ellen O'Halloran across 2 procedure codes in 2024, for 33 Medicare patients. Medicare paid $3,226 for them. Every service was in a facility, such as a hospital, rather than an office.
Ellen O'Halloran compared with the California median for physician assistants, 2024
- Ellen O'Halloran
- California median
- Medicare services
- 37vs 20482% below
- Medicare patients
- 33vs 10569% below
Medians across 7,065 physician assistants in California with Dmand AI profiles that report each measure.
Ellen O'Halloran'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.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Ellen Hucal O'Halloran treated 33 Medicare patients in 2024, average age 56
CMS counts 33 Medicare patients who saw Ellen O'Halloran in 2024. 75% of them have high blood pressure, and 58% have high cholesterol. Their average risk score is 2.23, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Ellen O'Halloran's median patient age at 22, with 55% women.
Ellen O'Halloran's Medicare patients by sex, 2024
- Women2061%
- Men1339%
Chronic conditions among Ellen O'Halloran's Medicare patients, 2024
- High blood pressure75%
- High cholesterol58%
- Diabetes48%
- Mood disorders36%
Share of Medicare patients with each condition. A patient can have several.
Ellen O'Halloran's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 22
Patient panel by sex, all payers
- Women55%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Ellen Hucal O'Halloran wrote 39 Medicare Part D claims in 2024
In 2024, Ellen O'Halloran wrote 39 Medicare Part D claims for 32 patients. 90% of them were for generic drugs.
Ellen O'Halloran's Part D claims by kind of drug, 2024
- Generic35 claims90%
- Brand-name and other4 claims10%
Drug classes CMS tracks in Ellen O'Halloran's Part D claims, 2024
- Antibiotics41%16 of 39 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
Ellen Hucal O'Halloran scored 97 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 97 out of 100 for Ellen O'Halloran for performance year 2024, reported as part of a group.
Ellen O'Halloran's MIPS scores, performance year 2024
- 97of 100Final score
- 90of 100Quality
- 40of 100Improvement Activities
- 78of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Sources for Ellen Hucal O'Halloran'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 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 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 | Clinician Public Reporting: Overall MIPS Performance (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 Ellen Hucal O'Halloran
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Ellen Hucal O'Halloran's NPI number?
Ellen Hucal O'Halloran's NPI number is 1346618071. It was assigned on September 11, 2015, and it is active in the NPI Registry.
What does Ellen Hucal O'Halloran specialize in?
Ellen Hucal O'Halloran is a physician assistant in Watsonville, California. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Ellen Hucal O'Halloran practice?
Ellen O'Halloran practices at 75 Nielson Street, Watsonville, CA 95076. Ellen O'Halloran's primary practice is Watsonville Community Hospital in Watsonville, California, part of Pajaro Valley Health Care District.
What is Ellen Hucal O'Halloran's office phone number?
The practice phone on file for Ellen O'Halloran is (831) 724-4741.
What is Ellen Hucal O'Halloran's medical license number?
Ellen O'Halloran holds California license PA52551.
Which hospitals is Ellen Hucal O'Halloran affiliated with?
Ellen O'Halloran practices at Watsonville Community Hospital in Watsonville, California.
What medical group is Ellen Hucal O'Halloran part of?
Ellen O'Halloran is linked to Vituity.
Does Ellen Hucal O'Halloran accept Medicare?
Yes. CMS data shows Ellen O'Halloran billed Medicare for 37 services in 2024.
What is Ellen Hucal O'Halloran's MIPS score?
Ellen O'Halloran's MIPS final score for performance year 2024 is 97 out of 100, reported as part of a group.
How many Medicare patients does Ellen Hucal O'Halloran see?
CMS counts 33 Medicare patients who saw Ellen O'Halloran in 2024, with an average age of 56.
What services does Ellen Hucal O'Halloran bill to Medicare?
In 2024, Ellen O'Halloran's most billed Medicare services were emergency department visit (99284) and emergency department visit (99285).
How long has Ellen Hucal O'Halloran been practicing?
Ellen O'Halloran's NPI was assigned in 2015.
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