Dr. Katherine Louise O'Brien, MD
- Publications
- 193
- Clinical trials
- 2
- Industry payments
- $5,568
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 600 N Wolfe St, Baltimore, MD 21287-0005
- Practice phone
- Call (410) 614-3917
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
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. Katherine Louise O'Brien is a pediatrician in Baltimore, Maryland
Dr. O'Brien practices in Baltimore, Maryland.
Dr. O'Brien's NPI, 1447297478, was assigned on May 31, 2006. Dr. O'Brien graduated from McGill University Faculty of Medicine in 1988. Dr. O'Brien's Maryland license number on file is D42847.
- NPI
- 1447297478NPI Registry (opens in a new tab)
- NPI enumeration date
- May 31, 2006
- NPI status
- Active
- Practice phone
- (410) 614-3917
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Medical school graduation
- 1988
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. Katherine Louise O'Brien's practice address is in Baltimore, Maryland
Dr. O'Brien's practice address in the NPI Registry is 600 N Wolfe St, Baltimore, MD 21287-0005. The practice phone is (410) 614-3917.
- NPI Registry address600 N Wolfe St, Baltimore, MD 21287-0005Phone(410) 614-3917
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Katherine Louise O'Brien's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. O'Brien practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr. O'Brien's practice | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Katherine Louise O'Brien is one of 1,376 pediatricians in Maryland
Pediatrics is Dr. O'Brien's primary specialty in the NPI Registry, under taxonomy code 208000000X. Dr. O'Brien has a license on file in Maryland.
Specialties and state licenses
- Pediatrics, MarylandPrimary
Pediatricians near Dr. O'Brien
Counts of pediatricians 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
Dr. Katherine Louise O'Brien's patients have a median age of 15
Across all payers, Dmand AI patient panel data puts Dr. O'Brien's median patient age at 15, with 100% 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 15
Patient panel by sex, all payers
- Women100%
- Men0%
Source: Dmand AI Patient Panel Data
Dr. Katherine Louise O'Brien has 193 publications on record
Dmand AI links 193 papers to Dr. O'Brien, published from 2000 to 2021. 2017 was the busiest year, with 12. The most frequent topics are Pneumococcal Infections, Pneumococcal Vaccines and Streptococcus pneumoniae. Dr. O'Brien has published most often in Clin Infect Dis. Dr. O'Brien's most frequent co-authors are Daniel Feikin, MD, James Patrick Watt, MD and Karen L. Kotloff, MD.
Dr. O'Brien's papers by year, 2012 to 2021
Topics Dr. O'Brien writes about most
- Pneumococcal Infections
- Pneumococcal Vaccines
- Streptococcus pneumoniae
- Indians, North American
- Vaccines, Conjugate
- Pneumonia
- Nasopharynx
- Carrier State
Dr. O'Brien's most frequent co-authors
- Daniel Feikin, MD18 shared papers
- James Patrick Watt, MD14 shared papers
- Karen L. Kotloff, MD13 shared papers
Recent publications by Dr. O'Brien
Pediatr Pulmonol
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. Katherine Louise O'Brien has worked on 2 clinical trials
Dmand AI links Dr. O'Brien to 2 clinical trials. Conditions studied include Pneumococcal Infections and Streptococcal Infections. Johns Hopkins Bloomberg School of Public Health sponsors the most, 2.
Conditions in Dr. O'Brien's trials
- Pneumococcal Infections
- Streptococcal Infections
Recent clinical trials with Dr. O'Brien
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Katherine Louise O'Brien received $5,568 in industry payments from 2016 to 2019
CMS Open Payments shows 7 general payments to Dr. O'Brien from 5 drug and device companies from 2016 to 2019. Consulting fees make up the largest share, 92% of the total. GlaxoSmithKline, LLC. paid the most, $3,680. It also lists 5 research payments totaling $2,205 in 2018.
General payments to Dr. O'Brien by program year, 2016 to 2019
General payments to Dr. O'Brien by kind, 2016 to 2019
- Consulting fees$5,13092%
- Food and beverage$4388%
Companies that paid Dr. O'Brien the most, 2016 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Katherine Louise O'Brien has 2 awards and honors on record
Dmand AI lists 2 awards for Dr. O'Brien, most recently Presidents Early Career Award in Science and Engineering in 2011.
Awards and honors for Dr. O'Brien
- 2011
- Presidents Early Career Award in Science and Engineering
- 2007
- Sabin Young Scientist Award
Source: Dmand AI Professional Profile Data
Dr. Katherine Louise O'Brien graduated from McGill University Faculty of Medicine
Dr. O'Brien graduated from McGill University Faculty of Medicine in 1988.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Katherine Louise 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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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. Katherine Louise O'Brien
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What is Dr. Katherine Louise O'Brien's NPI number?
Dr. Katherine Louise O'Brien's NPI number is 1447297478. It was assigned on May 31, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Katherine Louise O'Brien?
Dr. Katherine Louise O'Brien is a pediatrician in Baltimore, Maryland. The primary specialty in the NPI Registry is Pediatrics Physician (taxonomy code 208000000X).
Where does Dr. Katherine Louise O'Brien practice?
Dr. O'Brien practices at 600 N Wolfe St, Baltimore, MD 21287-0005.
What is Dr. Katherine Louise O'Brien's office phone number?
The practice phone on file for Dr. O'Brien is (410) 614-3917.
What is Dr. Katherine Louise O'Brien's medical license number?
Dr. O'Brien's Maryland license number on file is D42847.
Where did Dr. Katherine Louise O'Brien go to medical school?
Dr. O'Brien graduated from McGill University Faculty of Medicine in 1988.
Has Dr. Katherine Louise O'Brien received payments from drug or device companies?
CMS Open Payments shows $5,568 in general payments to Dr. O'Brien from 5 companies from 2016 to 2019. The largest total came from GlaxoSmithKline, LLC.
How long has Dr. Katherine Louise O'Brien been practicing?
Dr. O'Brien graduated from medical school in 1988, 38 years ago.
Does Dr. Katherine Louise O'Brien do research?
Dmand AI links 193 publications to Dr. O'Brien, published from 2000 to 2021. Dr. O'Brien has worked on 2 clinical trials.
Who does Dr. Katherine Louise O'Brien publish with?
Dr. O'Brien's most frequent co-authors are Daniel Feikin, MD (18 shared papers), James Patrick Watt, MD (14 shared papers) and Karen L. Kotloff, MD (13 shared papers).
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