Hannah J. O'Brien, PA-C
- Medicare patients, 2024
- 294
- Part D claims, 2024
- 205
- MIPS score, 2024
- 95
- Medical group
- 1
- State license
- 1
- Practice address
- 13855 E 14th St, San Leandro, CA 94578
- Practice phone
- Call (510) 357-6500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
San Leandro Hospital
San Leandro, California
Find Hannah 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.
Hannah J. O'Brien is a physician assistant in San Leandro, California
Hannah O'Brien practices at San Leandro Hospital in San Leandro, California.
Hannah O'Brien's NPI, 1780216598, was assigned on February 10, 2020. Hannah O'Brien holds California license PA58222.
- NPI
- 1780216598NPI Registry (opens in a new tab)
- NPI enumeration date
- February 10, 2020
- NPI status
- Active
- Practice phone
- (510) 357-6500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 32
- Medical school graduation
- 2020
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Hannah J. O'Brien practices at San Leandro Hospital in San Leandro, California
Hannah O'Brien's primary practice is San Leandro Hospital, at 13855 E 14th St, San Leandro, CA 94578 in Alameda County. The practice phone is (510) 357-6500.
- San Leandro Hospital13855 E 14th St, San Leandro, CA 94578 · Alameda CountyPhone(510) 357-6500
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Hannah J. O'Brien is affiliated with 1 site of care and 1 medical group
Hannah O'Brien's primary practice is San Leandro Hospital in San Leandro, California. The medical group on file is Alameda Health System.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Hannah J. O'Brien's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Hannah O'Brien practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| San Leandro Hospital | Available with a free account |
Source: Dmand AI Technology Install Data
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Hannah J. O'Brien is one of 11,482 physician assistants in California
Physician assistant is Hannah O'Brien's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Hannah O'Brien is licensed in California.
Specialties and state licenses
- Physician assistant, CaliforniaPrimary
Physician assistants near Hannah O'Brien
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
Hannah J. O'Brien treated 294 Medicare patients in 2024, average age 68
CMS counts 294 Medicare patients who saw Hannah O'Brien in 2024. The largest group is 65 to 74, with 109 patients. 75% of them have high blood pressure, and 63% have high cholesterol. 83% are also on Medicaid. Their average risk score is 2.06, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Hannah O'Brien's median patient age at 44, with 56% women.
Hannah O'Brien's Medicare patients by age, 2024
Hannah O'Brien's Medicare patients by sex, 2024
- Women16656%
- Men12844%
Chronic conditions among Hannah O'Brien's Medicare patients, 2024
- High blood pressure75%
- High cholesterol63%
- Diabetes44%
- Arthritis40%
- Mood disorders35%
- Chronic kidney disease31%
- Anxiety29%
- Depression28%
Share of Medicare patients with each condition. A patient can have several.
Hannah 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 44
Patient panel by sex, all payers
- Women56%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Hannah J. O'Brien wrote 205 Medicare Part D claims in 2024
In 2024, Hannah O'Brien wrote 205 Medicare Part D claims for 125 patients. 86% of them were for generic drugs.
Hannah O'Brien's Part D claims by kind of drug, 2024
- Generic176 claims86%
- Brand-name and other29 claims14%
Drug classes CMS tracks in Hannah O'Brien's Part D claims, 2024
- Opioids5%11 of 205 claims
- Antibiotics22%45 of 205 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
Hannah J. O'Brien scored 95 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 95 out of 100 for Hannah O'Brien for performance year 2024, reported as part of a group.
Hannah O'Brien's MIPS scores, performance year 2024
- 95of 100Final score
- 86.9of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 73of 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 Hannah J. 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 | 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 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 | 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 Hannah J. 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 Hannah J. O'Brien's NPI number?
Hannah J. O'Brien's NPI number is 1780216598. It was assigned on February 10, 2020, and it is active in the NPI Registry.
What does Hannah J. O'Brien specialize in?
Hannah J. O'Brien is a physician assistant in San Leandro, California. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Hannah J. O'Brien practice?
Hannah O'Brien practices at 13855 E 14th St, San Leandro, CA 94578. Hannah O'Brien's primary practice is San Leandro Hospital in San Leandro, California.
What is Hannah J. O'Brien's office phone number?
The practice phone on file for Hannah O'Brien is (510) 357-6500.
What is Hannah J. O'Brien's medical license number?
Hannah O'Brien holds California license PA58222.
What medical group is Hannah J. O'Brien part of?
Hannah O'Brien is linked to Alameda Health System.
What is Hannah J. O'Brien's MIPS score?
Hannah O'Brien's MIPS final score for performance year 2024 is 95 out of 100, reported as part of a group.
How many Medicare patients does Hannah J. O'Brien see?
CMS counts 294 Medicare patients who saw Hannah O'Brien in 2024, with an average age of 68.
How long has Hannah J. O'Brien been practicing?
Hannah O'Brien graduated from medical school in 2020, 6 years ago.
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