Marissa G. O'Connor
- Medicare patients, 2024
- 17
- Affiliated sites
- 1
- Medical groups
- 2
- State license
- 1
- Year NPI issued
- 2019
- Practice address
- 770 Grand Blvd Ste 17 Suite 17, Deer Park, NY 11729
- Practice phone
- Call (516) 361-3576
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
North Shore-lij Medical - Behavioral & Mental Health - Deer Park (Grand Blvd)
Multi-specialty group site · Deer Park, New York
Find Marissa 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.
Marissa G. O'Connor is a social worker in New Hyde Park, New York
Marissa O'Connor practices at North Shore-lij Medical - Behavioral & Mental Health - Deer Park (Grand Blvd) in Deer Park, New York.
Marissa O'Connor's NPI, 1386286896, was assigned on October 16, 2019.
- NPI
- 1386286896NPI Registry (opens in a new tab)
- NPI enumeration date
- October 16, 2019
- NPI status
- Active
- Practice phone
- (516) 361-3576
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 35
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Marissa G. O'Connor practices in Deer Park and New Hyde Park
Marissa O'Connor's primary practice is North Shore-lij Medical - Behavioral & Mental Health - Deer Park (Grand Blvd), at 770 Grand Blvd Ste 17 Suite 17, Deer Park, NY 11729. The practice phone is (516) 361-3576. The NPI Registry lists Marissa O'Connor's practice address as 1991 Marcus Ave, New Hyde Park, NY 11042.
- North Shore-lij Medical - Behavioral & Mental Health - Deer Park (Grand Blvd)Primary770 Grand Blvd Ste 17 Suite 17, Deer Park, NY 11729Phone(516) 361-3576
- NPI Registry address1991 Marcus Ave, New Hyde Park, NY 11042 · Nassau County
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Marissa G. O'Connor is affiliated with 1 site of care and 2 medical groups
Marissa O'Connor's primary practice is North Shore-lij Medical - Behavioral & Mental Health - Deer Park (Grand Blvd) in Deer Park, New York. The medical group on file is Northwell Health Physician Partners Cardiology at Great Neck. Dmand AI also links Marissa O'Connor to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Marissa G. O'Connor's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Marissa O'Connor practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| North Shore-lij Medical - Behavioral & Mental Health - Deer Park (Grand Blvd) | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Marissa G. O'Connor is one of 4,070 social workers in New York
Social worker is Marissa O'Connor's primary specialty in the NPI Registry, under taxonomy code 104100000X.
Specialties and state licenses
- Social workerPrimary
Social workers near Marissa O'Connor
Counts of social workers 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
Marissa G. O'Connor treated 17 Medicare patients in 2024, average age 71
CMS counts 17 Medicare patients who saw Marissa O'Connor in 2024. 75% of them have mood disorders, and 71% have high cholesterol. Their average risk score is 1.20, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Marissa O'Connor's median patient age at 32, with 33% women.
Chronic conditions among Marissa O'Connor's Medicare patients, 2024
- Mood disorders75%
- High cholesterol71%
- High blood pressure65%
Share of Medicare patients with each condition. A patient can have several.
Marissa 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 32
Patient panel by sex, all payers
- Women33%
- Men67%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Sources for Marissa G. 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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (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 Marissa G. 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 Marissa G. O'Connor's NPI number?
Marissa G. O'Connor's NPI number is 1386286896. It was assigned on October 16, 2019, and it is active in the NPI Registry.
What does Marissa G. O'Connor specialize in?
Marissa G. O'Connor is a social worker in New Hyde Park, New York. The primary specialty in the NPI Registry is Social Worker (taxonomy code 104100000X).
Where does Marissa G. O'Connor practice?
Marissa O'Connor practices at 770 Grand Blvd Ste 17 Suite 17, Deer Park, NY 11729. Marissa O'Connor also practices at 1991 Marcus Ave, New Hyde Park, NY 11042. Marissa O'Connor's primary practice is North Shore-lij Medical - Behavioral & Mental Health - Deer Park (Grand Blvd) in Deer Park, New York. Dmand AI also links Marissa O'Connor to 1 medical group.
What is Marissa G. O'Connor's office phone number?
The practice phone on file for Marissa O'Connor is (516) 361-3576.
What medical group is Marissa G. O'Connor part of?
Marissa O'Connor is linked to Northwell Health Physician Partners Cardiology at Great Neck. Dmand AI links Marissa O'Connor to 1 more medical group.
How many Medicare patients does Marissa G. O'Connor see?
CMS counts 17 Medicare patients who saw Marissa O'Connor in 2024, with an average age of 71.
How long has Marissa G. O'Connor been practicing?
Marissa O'Connor graduated from medical school in 2017, 9 years ago.
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