Celiac DiseaseDiagnosis, DifferentialEosinophilic Esophagitis
Dr. Rebecca F. O'Brien, MD
NPI1144339631
- Part D claims, 2024
- 11
- Publications
- 1
- Hospital affiliations
- 1
- Industry payments
- $131
- Medical group
- 1
- Practice address
- 300 Longwood Avenue, Boston, MA 02115
- Practice phone
- Call (617) 735-6000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. O'Brien'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.
Dr. Rebecca F. O'Brien is a pediatrician in Boston, Massachusetts
Dr. O'Brien practices at Boston Children's Hospital in Boston, Massachusetts, part of The Children's Hospital.
Dr. O'Brien's NPI, 1144339631, was assigned on August 29, 2006. Dr. O'Brien graduated from University of Massachusetts Medical School in 1983. Dr. O'Brien holds Massachusetts license 53833.
NPI and contact details
- NPI
- 1144339631NPI Registry (opens in a new tab)
- NPI enumeration date
- August 29, 2006
- NPI status
- Active
- Practice phone
- (617) 735-6000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 69
- Medical school graduation
- 1983
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Rebecca F. O'Brien practices at Boston Children's Hospital in Boston, Massachusetts
Dr. O'Brien's primary practice is Boston Children's Hospital, at 300 Longwood Avenue, Boston, MA 02115 in Suffolk County. The practice phone is (617) 735-6000.
- Boston Children's Hospital300 Longwood Avenue, Boston, MA 02115 · Suffolk CountyPhone(617) 735-6000
Source: Dmand AI Affiliation Data
Dr. Rebecca F. O'Brien is affiliated with 2 sites of care and 1 medical group
Dr. O'Brien's primary practice is Boston Children's Hospital in Boston, Massachusetts, part of The Children's Hospital. The medical group on file is Boston Children's Hospital. Dmand AI also links Dr. O'Brien to 1 more dialysis center, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Rebecca F. O'Brien's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. O'Brien practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Boston Children's Hospital | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dmand AI maps EHR vendors, IT decision makers and buying committees across The Children's Hospital and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Rebecca F. O'Brien is one of 2,101 pediatricians in Massachusetts
Pediatrics is Dr. O'Brien's primary specialty in the NPI Registry, under taxonomy code 208000000X. Dr. O'Brien is licensed in Massachusetts.
Specialties and state licenses
- Pediatrics, MassachusettsPrimary
Pediatricians near Dr. O'Brien
Counts of pediatricians with a Dmand AI profile, by place and practice. Each opens the list.
2,101pediatricians in Massachusetts725pediatricians in Boston351pediatricians at Boston Children's Hospital
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Rebecca F. O'Brien's patients have a median age of 19
Across all payers, Dmand AI patient panel data puts Dr. O'Brien's median patient age at 19, with 78% women.
Dr. O'Brien's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 19
Patient panel by sex, all payers
- Women78%
- Men21%
Source: Dmand AI Patient Panel Data
Dr. Rebecca F. O'Brien wrote 11 Medicare Part D claims in 2024
In 2024, Dr. O'Brien wrote 11 Medicare Part D claims.
Part D claims, 202411
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
For MedTech and pharma teams
Find pediatricians like Dr. O'Brien by procedure volume and prescribing
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Dr. Rebecca F. O'Brien has 1 publication on record
Dmand AI links 1 paper to Dr. O'Brien.
Papers1
Recent publications by Dr. O'Brien
See who Dr. O'Brien researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. O'Brien works with, so you can find a warm path to the right pediatricians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Rebecca F. O'Brien received $131 in industry payments in 2023
CMS Open Payments shows 1 general payment to Dr. O'Brien from 1 drug or device company in 2023. Food and beverage make up the largest share, 100% of the total. Exeltis, USA Inc. paid the most, $131.
Companies that paid Dr. O'Brien the most, 2023 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Rebecca F. O'Brien graduated from University of Massachusetts Medical School
Dr. O'Brien graduated from University of Massachusetts Medical School in 1983.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Rebecca F. O'Brien'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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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 Dr. Rebecca F. O'Brien
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Rebecca F. O'Brien's NPI number?
Dr. Rebecca F. O'Brien's NPI number is 1144339631. It was assigned on August 29, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Rebecca F. O'Brien?
Dr. Rebecca F. O'Brien is a pediatrician in Boston, Massachusetts. The primary specialty in the NPI Registry is Pediatrics Physician (taxonomy code 208000000X).
Where does Dr. Rebecca F. O'Brien practice?
Dr. O'Brien practices at 300 Longwood Avenue, Boston, MA 02115. Dr. O'Brien's primary practice is Boston Children's Hospital in Boston, Massachusetts, part of The Children's Hospital. Dmand AI also links Dr. O'Brien to 1 dialysis center.
What is Dr. Rebecca F. O'Brien's office phone number?
The practice phone on file for Dr. O'Brien is (617) 735-6000.
What is Dr. Rebecca F. O'Brien's medical license number?
Dr. O'Brien holds Massachusetts license 53833.
Which hospitals is Dr. Rebecca F. O'Brien affiliated with?
Dr. O'Brien practices at Boston Children's Hospital in Boston, Massachusetts.
What medical group is Dr. Rebecca F. O'Brien part of?
Dr. O'Brien is linked to Boston Children's Hospital.
Where did Dr. Rebecca F. O'Brien go to medical school?
Dr. O'Brien graduated from University of Massachusetts Medical School in 1983.
Has Dr. Rebecca F. O'Brien received payments from drug or device companies?
CMS Open Payments shows $131 in general payments to Dr. O'Brien from 1 company from 2023 to 2023. The largest total came from Exeltis, USA Inc.
How long has Dr. Rebecca F. O'Brien been practicing?
Dr. O'Brien graduated from medical school in 1983, 43 years ago.
Does Dr. Rebecca F. O'Brien do research?
Dmand AI links 1 publication to Dr. O'Brien.
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