Colleen E. O'Connor, PA
- Part D claims, 2024
- 260
- Hospital affiliations
- 1
- Industry payments
- $58
- Medical groups
- 2
- 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 Colleen O'Connor's professional email, personal email and mobile number
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Colleen E. O'Connor is a physician assistant in Boston, Massachusetts
Colleen O'Connor practices at Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham.
Colleen O'Connor's NPI, 1730116815, was assigned on June 26, 2006. Colleen O'Connor holds Massachusetts license 2387.
- NPI
- 1730116815NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9032113808
- NPI enumeration date
- June 26, 2006
- 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
- 51
- Medical school graduation
- 2001
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Colleen E. O'Connor practices at Massachusetts General Hospital in Boston, Massachusetts
Colleen O'Connor'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
Colleen E. O'Connor is affiliated with 2 sites of care and 2 medical groups
Colleen O'Connor's primary practice is Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham. The medical group on file is Massachusetts General Physicians Organization (MGPO). Dmand AI also links Colleen O'Connor to 1 more community health center and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Colleen E. O'Connor's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Colleen O'Connor practices, 2 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 |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Colleen E. O'Connor is one of 3,922 physician assistants in Massachusetts
Physician assistant is Colleen O'Connor's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Colleen O'Connor is licensed in Massachusetts.
Specialties and state licenses
- Physician assistant, MassachusettsPrimary
Physician assistants near Colleen O'Connor
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
Colleen E. O'Connor's patients have a median age of 76
Across all payers, Dmand AI patient panel data puts Colleen O'Connor's median patient age at 76, with 46% women.
Colleen 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 76
Patient panel by sex, all payers
- Women46%
- Men54%
Source: Dmand AI Patient Panel Data
Colleen E. O'Connor wrote 260 Medicare Part D claims in 2024
In 2024, Colleen O'Connor wrote 260 Medicare Part D claims for 178 patients. 91% of them were for generic drugs.
Colleen O'Connor's Part D claims by kind of drug, 2024
- Generic236 claims91%
- Brand-name24 claims9%
Drug classes CMS tracks in Colleen O'Connor's Part D claims, 2024
- Opioids11%29 of 260 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 Colleen E. O'Connor takes part in Medicare
Colleen O'Connor 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)
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Colleen E. O'Connor received $58 in industry payments in 2025
CMS Open Payments shows 1 general payment to Colleen O'Connor from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Pfizer Inc. paid the most, $58.
Companies that paid Colleen 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 Colleen E. 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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 Colleen E. 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 Colleen E. O'Connor's NPI number?
Colleen E. O'Connor's NPI number is 1730116815. It was assigned on June 26, 2006, and it is active in the NPI Registry.
What does Colleen E. O'Connor specialize in?
Colleen E. O'Connor is a physician assistant in Boston, Massachusetts. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Colleen E. O'Connor practice?
Colleen O'Connor practices at 55 Fruit Street, Boston, MA 02114. Colleen O'Connor's primary practice is Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham. Dmand AI also links Colleen O'Connor to 1 community health center and 1 medical group.
What is Colleen E. O'Connor's office phone number?
The practice phone on file for Colleen O'Connor is (617) 726-2000.
What is Colleen E. O'Connor's medical license number?
Colleen O'Connor holds Massachusetts license 2387.
Which hospitals is Colleen E. O'Connor affiliated with?
Colleen O'Connor practices at Massachusetts General Hospital in Boston, Massachusetts.
What medical group is Colleen E. O'Connor part of?
Colleen O'Connor is linked to Massachusetts General Physicians Organization (MGPO). Dmand AI links Colleen O'Connor to 1 more medical group.
Does Colleen E. O'Connor accept Medicare?
Yes. CMS lists Colleen O'Connor as accepting Medicare assignment.
Has Colleen E. O'Connor received payments from drug or device companies?
CMS Open Payments shows $58 in general payments to Colleen O'Connor from 1 company from 2025 to 2025. The largest total came from Pfizer Inc.
How long has Colleen E. O'Connor been practicing?
Colleen O'Connor graduated from medical school in 2001, 25 years ago.
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