Erin Rose O'Day, PA-C
- Medicare patients, 2024
- 46
- Part D claims, 2024
- 70
- Hospital affiliations
- 4
- Medical groups
- 5
- State license
- 1
- Practice address
- 55 Fruit Street, Boston, MA 02114
- Practice phone
- Call (617) 726-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Erin O'Day'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 Rose O'Day is a physician assistant in Boston, Massachusetts
Erin O'Day practices at Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham.
Erin O'Day's NPI, 1578144911, was assigned on April 17, 2021. Erin O'Day holds Maine license PA2935.
- NPI
- 1578144911NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2961896634
- NPI enumeration date
- April 17, 2021
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (617) 726-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 31
- Medical school graduation
- 2021
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Erin Rose O'Day practices at Massachusetts General Hospital in Boston, Massachusetts
Erin O'Day's primary practice is Massachusetts General Hospital, at 55 Fruit Street, Boston, MA 02114 in Suffolk County. The practice phone is (617) 726-2000.
- Massachusetts General Hospital55 Fruit Street, Boston, MA 02114 · Suffolk CountyPhone(617) 726-2000
Source: Dmand AI Affiliation Data
Erin Rose O'Day is affiliated with 5 sites of care and 5 medical groups
Erin O'Day's primary practice is Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham. Erin O'Day is also affiliated with Nantucket Cottage Hospital. The medical group on file is Nantucket Cottage Hospital. Dmand AI also links Erin O'Day to 2 more hospitals, 4 medical groups and 1 community health center, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Erin Rose O'Day's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Erin O'Day practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Massachusetts General Hospital | Available with a free account |
| +4 more sites and 4 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Erin Rose O'Day is one of 3,922 physician assistants in Massachusetts
Physician assistant is Erin O'Day's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Erin O'Day is licensed in Maine.
Specialties and state licenses
- Physician assistant, MainePrimary
Physician assistants near Erin O'Day
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
Erin Rose O'Day treated 46 Medicare patients in 2024, average age 77
CMS counts 46 Medicare patients who saw Erin O'Day in 2024. The largest group is 65 to 74, with 16 patients. 74% of them have high blood pressure, and 70% have high cholesterol. Their average risk score is 1.42, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Erin O'Day's median patient age at 62, with 60% women.
Erin O'Day's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Erin O'Day's Medicare patients by sex, 2024
- Women2350%
- Men2350%
Chronic conditions among Erin O'Day's Medicare patients, 2024
- High blood pressure74%
- High cholesterol70%
- Arthritis48%
- Ischemic heart disease46%
- Atrial fibrillation35%
- Heart failure35%
- Mood disorders26%
- Anxiety24%
Share of Medicare patients with each condition. A patient can have several.
Erin O'Day's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 62
Patient panel by sex, all payers
- Women60%
- Men39%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Erin Rose O'Day wrote 70 Medicare Part D claims in 2024
In 2024, Erin O'Day wrote 70 Medicare Part D claims for 55 patients. 90% of them were for generic drugs.
Erin O'Day's Part D claims by kind of drug, 2024
- Generic63 claims90%
- Brand-name and other7 claims10%
Drug classes CMS tracks in Erin O'Day's Part D claims, 2024
- Antibiotics46%32 of 70 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
How Erin Rose O'Day takes part in Medicare
Erin O'Day 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)
For MedTech and pharma teams
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Sources for Erin Rose O'Day'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 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 | 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 Erin Rose O'Day
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 Rose O'Day's NPI number?
Erin Rose O'Day's NPI number is 1578144911. It was assigned on April 17, 2021, and it is active in the NPI Registry.
What does Erin Rose O'Day specialize in?
Erin Rose O'Day is a physician assistant in Boston, Massachusetts. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Erin Rose O'Day practice?
Erin O'Day practices at 55 Fruit Street, Boston, MA 02114. Erin O'Day's primary practice is Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham. Dmand AI also links Erin O'Day to 2 hospitals, 4 medical groups and 1 community health center.
What is Erin Rose O'Day's office phone number?
The practice phone on file for Erin O'Day is (617) 726-2000.
What is Erin Rose O'Day's medical license number?
Erin O'Day holds Maine license PA2935.
Which hospitals is Erin Rose O'Day affiliated with?
Erin O'Day practices at Massachusetts General Hospital in Boston, Massachusetts. Erin O'Day is also affiliated with Nantucket Cottage Hospital. Dmand AI links Erin O'Day to 2 more hospitals.
What medical group is Erin Rose O'Day part of?
Erin O'Day is linked to Nantucket Cottage Hospital. Dmand AI links Erin O'Day to 4 more medical groups.
Does Erin Rose O'Day accept Medicare?
Yes. CMS lists Erin O'Day as accepting Medicare assignment.
How many Medicare patients does Erin Rose O'Day see?
CMS counts 46 Medicare patients who saw Erin O'Day in 2024, with an average age of 77.
How long has Erin Rose O'Day been practicing?
Erin O'Day graduated from medical school in 2021, 5 years ago.
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