Ellen Katch O'Brien, MD
Pediatrics Physician · Washington, DC
Ellen Katch O'Brien, MD is a pediatrics physician with a practice address in Washington, District of Columbia, and NPI 1992965008, issued on Jun 11, 2008. Check the license (District of Columbia MD039682, as entered in NPPES) on the District of Columbia Board of Medicine; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Ellen Katch O'Brien
- Credential
- MD
- Primary taxonomy
- Pediatrics Physician 208000000X
- License number
- MD039682 DC
Self-reported in NPPES; status is on the state search - Practice location
- 2141 K St NW, Washington, DC 20037
- Phone
- (202) 833-4543
- Enumerated
- Jun 11, 2008
- Record last updated
- Nov 30, 2011 (not updated in 15 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest pediatrics physician records → All 593 in District of Columbia → Look up another NPI →
Also registered at 2141 K St NW
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Ellen Katch O'Brien in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersDistrict of Columbia Board of Medicine
Search for license MD039682Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Ellen Katch O'Brien among 593 pediatrics physician records in District of Columbia
Ellen Katch O'Brien, MD is one of 593 pediatrics physician records with a practice address in District of Columbia. 20% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2008, is newer than 31% of them.
- NPI issued2008 · 31% of these records are older, 60% newer
- In a Medicare fileNo · 20% of these records are
- In the CMS Doctors and Clinicians fileNo · 13% of these records are
- Record last updated2011 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208000000X and a District of Columbia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
591 pediatrics physician records list a practice address in Washington
They are 591 of the 45,857 NPPES records with a practice address in Washington, and 593 pediatrics physician records in District of Columbia. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 593 in District of Columbia → Every provider in Washington → Pediatrics Physician nationwide →
The 8 pediatrics physician records with the nearest ZIP codes
- Milagros Ariza, M.D.Washington, DC 200371841341229
- Anne Baldwin, MDWashington, DC 200371982772315
- Michelle Barnes Marshall, MDWashington, DC 200371467597765
- Andrew Garrett, MD, MPH, FAAP, FAEMSWashington, DC 200371881676203
- Ellen Hamburger, M.D.Washington, DC 200371558438002
- Jennifer Kaplan, M.D.Washington, DC 200371518034073
- Leonard Lefkowitz, MDWashington, DC 200371386865210
- Ingrid Mendez, MDWashington, DC 200371508878687
Common questions
What is Ellen Katch O'Brien, MD's NPI number?
Ellen Katch O'Brien, MD's National Provider Identifier (NPI) is 1992965008, issued on Jun 11, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Ellen Katch O'Brien, MD located?
The NPPES record lists a practice address at 2141 K St NW, Washington, DC, 20037. Phone: (202) 833-4543. Providers update this record themselves, so call before visiting.
How can I verify Ellen Katch O'Brien, MD's license?
NPPES lists District of Columbia license number MD039682, as entered by the provider. Search the District of Columbia Board of Medicine at https://dchealth.dc.gov/bomed. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.