Marissa Oconnor
- Medicare patients, 2024
- 151
- Hospital affiliations
- 1
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2017
- Practice address
- 330 Mount Auburn Street, Cambridge, MA 02138
- Practice phone
- Call (617) 492-3500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Marissa Oconnor'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 Oconnor is a nurse anesthetist in Cambridge, Massachusetts
Marissa Oconnor practices at Mount Auburn Hospital in Cambridge, Massachusetts, part of Beth Israel Lahey Health.
Marissa Oconnor's NPI, 1497271662, was assigned on August 18, 2017. Marissa Oconnor holds Massachusetts license RN2294239.
- NPI
- 1497271662NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9032461553
- NPI enumeration date
- August 18, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (617) 492-3500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Marissa Oconnor practices at Mount Auburn Hospital in Cambridge, Massachusetts
Marissa Oconnor's primary practice is Mount Auburn Hospital, at 330 Mount Auburn Street, Cambridge, MA 02138 in Middlesex County. The practice phone is (617) 492-3500.
- Mount Auburn Hospital330 Mount Auburn Street, Cambridge, MA 02138 · Middlesex CountyPhone(617) 492-3500
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Marissa Oconnor is affiliated with 1 site of care and 1 medical group
Marissa Oconnor's primary practice is Mount Auburn Hospital in Cambridge, Massachusetts, part of Beth Israel Lahey Health. The medical group on file is Harvard Medical Faculty Physicians at Beth Israel Deaconess Medical Center.
Sources: Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Marissa Oconnor's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Marissa Oconnor practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mount Auburn Hospital | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Beth Israel Lahey Health and 6.2K+ hospitals, with verified contacts in the same login.
Marissa Oconnor is one of 1,027 nurse anesthetists in Massachusetts
Nurse anesthetist, certified registered is Marissa Oconnor's primary specialty in the NPI Registry, under taxonomy code 367500000X. Marissa Oconnor is licensed in Massachusetts.
Specialties and state licenses
- Certified registered nurse anesthetist, MassachusettsPrimary
Nurse anesthetists near Marissa Oconnor
Counts of nurse anesthetists 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 Oconnor treated 151 Medicare patients in 2024, average age 74
CMS counts 151 Medicare patients who saw Marissa Oconnor in 2024. The largest group is 75 to 84, with 68 patients. 74% of them have high cholesterol, and 64% have high blood pressure. 19% are also on Medicaid. Their average risk score is 1.09, where 1.00 is the Medicare average.
Marissa Oconnor's Medicare patients by age, 2024
Marissa Oconnor's Medicare patients by sex, 2024
- Women10066%
- Men5134%
Chronic conditions among Marissa Oconnor's Medicare patients, 2024
- High cholesterol74%
- High blood pressure64%
- Arthritis50%
- Anxiety31%
- Mood disorders29%
- Cancer28%
- Ischemic heart disease28%
- Depression27%
Share of Medicare patients with each condition. A patient can have several.
Source: Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Marissa Oconnor takes part in Medicare
Marissa Oconnor accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
Sources for Marissa Oconnor'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 DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Medicare Physician & Other Practitioners - 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) |
| 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 Oconnor
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 Oconnor's NPI number?
Marissa Oconnor's NPI number is 1497271662. It was assigned on August 18, 2017, and it is active in the NPI Registry.
What does Marissa Oconnor specialize in?
Marissa Oconnor is a nurse anesthetist in Cambridge, Massachusetts. The primary specialty in the NPI Registry is Certified Registered Nurse Anesthetist (taxonomy code 367500000X).
Where does Marissa Oconnor practice?
Marissa Oconnor practices at 330 Mount Auburn Street, Cambridge, MA 02138. Marissa Oconnor's primary practice is Mount Auburn Hospital in Cambridge, Massachusetts, part of Beth Israel Lahey Health.
What is Marissa Oconnor's office phone number?
The practice phone on file for Marissa Oconnor is (617) 492-3500.
What is Marissa Oconnor's medical license number?
Marissa Oconnor holds Massachusetts license RN2294239, one of 2 state licenses on file.
Which hospitals is Marissa Oconnor affiliated with?
Marissa Oconnor practices at Mount Auburn Hospital in Cambridge, Massachusetts.
What medical group is Marissa Oconnor part of?
Marissa Oconnor is linked to Harvard Medical Faculty Physicians at Beth Israel Deaconess Medical Center.
Does Marissa Oconnor accept Medicare?
Yes. CMS lists Marissa Oconnor as accepting Medicare assignment.
How many Medicare patients does Marissa Oconnor see?
CMS counts 151 Medicare patients who saw Marissa Oconnor in 2024, with an average age of 74.
How long has Marissa Oconnor been practicing?
Marissa Oconnor's NPI was assigned in 2017.
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