Erin Cassidy O'Connor
- Part D claims, 2024
- 116
- Hospital affiliations
- 1
- Industry payments
- $208
- Medical group
- 1
- State license
- 1
- Practice address
- 1101 Van Ness Avenue, San Francisco, CA 94109
- Practice phone
- Call (415) 600-6000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Erin O'Connor'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.
Erin Cassidy O'Connor is a nurse practitioner in San Francisco, California
Erin O'Connor practices at California Pacific Medical Center Van Ness Campus in San Francisco, California, part of Sutter Health.
Erin O'Connor's NPI, 1093561813, was assigned on April 24, 2024. Erin O'Connor holds California license NP95031124.
- NPI
- 1093561813NPI Registry (opens in a new tab)
- NPI enumeration date
- April 24, 2024
- NPI status
- Active
- Practice phone
- (415) 600-6000
- 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
Erin Cassidy O'Connor practices at California Pacific Medical Center Van Ness Campus in San Francisco, California
Erin O'Connor's primary practice is California Pacific Medical Center Van Ness Campus, at 1101 Van Ness Avenue, San Francisco, CA 94109 in San Francisco County. The practice phone is (415) 600-6000.
- California Pacific Medical Center Van Ness Campus1101 Van Ness Avenue, San Francisco, CA 94109 · San Francisco CountyPhone(415) 600-6000
Source: Dmand AI Affiliation Data
Erin Cassidy O'Connor is affiliated with 2 sites of care and 1 medical group
Erin O'Connor's primary practice is California Pacific Medical Center Van Ness Campus in San Francisco, California, part of Sutter Health. The medical group on file is Mission Neighborhood Health Center. Dmand AI also links Erin O'Connor to 1 more community health center, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Erin Cassidy O'Connor's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Erin O'Connor practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| California Pacific Medical Center Van Ness Campus | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Erin Cassidy O'Connor is one of 5,983 nurse practitioners in California
Nurse practitioner is Erin O'Connor's primary specialty in the NPI Registry, under taxonomy code 363L00000X. Erin O'Connor is licensed in California.
Specialties and state licenses
- Nurse practitioner, CaliforniaPrimary
Nurse practitioners near Erin O'Connor
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
Erin Cassidy O'Connor's patients have a median age of 57
Across all payers, Dmand AI patient panel data puts Erin O'Connor's median patient age at 57, with 67% women.
Erin O'Connor's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 57
Patient panel by sex, all payers
- Women67%
- Men28%
Source: Dmand AI Patient Panel Data
Erin Cassidy O'Connor wrote 116 Medicare Part D claims in 2024
In 2024, Erin O'Connor wrote 116 Medicare Part D claims for 70 patients. 94% of them were for generic drugs.
Erin O'Connor's Part D claims by kind of drug, 2024
- Generic109 claims94%
- Brand-name and other7 claims6%
Drug classes CMS tracks in Erin O'Connor's Part D claims, 2024
- Antibiotics11%13 of 116 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
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Erin Cassidy O'Connor received $208 in industry payments in 2025
CMS Open Payments shows 2 general payments to Erin O'Connor from 2 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Vertex Pharmaceuticals Incorporated paid the most, $118.
Companies that paid Erin O'Connor 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 Erin Cassidy O'Connor'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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider (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 Erin Cassidy O'Connor
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Erin Cassidy O'Connor's NPI number?
Erin Cassidy O'Connor's NPI number is 1093561813. It was assigned on April 24, 2024, and it is active in the NPI Registry.
What does Erin Cassidy O'Connor specialize in?
Erin Cassidy O'Connor is a nurse practitioner in San Francisco, California. The primary specialty in the NPI Registry is Nurse Practitioner (taxonomy code 363L00000X).
Where does Erin Cassidy O'Connor practice?
Erin O'Connor practices at 1101 Van Ness Avenue, San Francisco, CA 94109. Erin O'Connor's primary practice is California Pacific Medical Center Van Ness Campus in San Francisco, California, part of Sutter Health. Dmand AI also links Erin O'Connor to 1 community health center.
What is Erin Cassidy O'Connor's office phone number?
The practice phone on file for Erin O'Connor is (415) 600-6000.
What is Erin Cassidy O'Connor's medical license number?
Erin O'Connor holds California license NP95031124.
Which hospitals is Erin Cassidy O'Connor affiliated with?
Erin O'Connor practices at California Pacific Medical Center Van Ness Campus in San Francisco, California.
What medical group is Erin Cassidy O'Connor part of?
Erin O'Connor is linked to Mission Neighborhood Health Center.
Has Erin Cassidy O'Connor received payments from drug or device companies?
CMS Open Payments shows $208 in general payments to Erin O'Connor from 2 companies from 2025 to 2025. The largest total came from Vertex Pharmaceuticals Incorporated.
How long has Erin Cassidy O'Connor been practicing?
Erin O'Connor's NPI was assigned in 2024.
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