Elizabeth Mary Conway O'Callahan, MD
Family Medicine Physician · Brooklyn, NY
Elizabeth Mary Conway O'Callahan, MD is a family medicine physician with a practice address in Brooklyn, New York, and NPI 1346773074, issued on Apr 10, 2017. Check the license (New York 305869, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Elizabeth Mary Conway O'Callahan
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- 305869 NY
285671 MA
Self-reported in NPPES; status is on the state search - Practice location
- 165 Smith St, Brooklyn, NY 11201
- Phone
- (212) 441-4380
- Enumerated
- Apr 10, 2017
- Record last updated
- Dec 1, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (212) 867-4353
- Medicare enrollment
- Enrolled (PECOS I20211110001816); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,417 in New York → Look up another NPI →
Also registered at 165 Smith St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Michele Arocena, PA-CPhysician Assistant1134500580
- Megan Corley, N.P.Primary Care Nurse Practitioner1104173301
- Sophie D'SouzaPhysical Therapist1942080155
- Kara Denny, M.D.Internal Medicine Physician1649462524
- Patricia Driscoll, MDInternal Medicine Physician1104359249
- Luisa Guerriera, PAMedical Physician Assistant1245562867
Verify Elizabeth Mary Conway O'Callahan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 305869Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average family medicine physician in 2024
118 Medicare Part D claims for 21 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.
Most prescribed
- Zolpidem Tartrate16 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Mount Sinai School OF MedicineBrooklyn, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Elizabeth Mary Conway O'Callahan among 6,417 family medicine physician records in New York
Elizabeth Mary Conway O'Callahan, MD is one of 6,417 family medicine physician records with a practice address in New York. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 77% of them.
- NPI issued2017 · 77% of these records are older, 20% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated2017 · median 2007 among the 4,188 with a school on file
- Record last updated2021 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
500 family medicine physician records list a practice address in Brooklyn
They are 500 of the 64,057 NPPES records with a practice address in Brooklyn, and 6,417 family medicine physician records in New York.
All 6,417 in New York → Every provider in Brooklyn → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Naganna Channaveeraiah, M.D, MBA, CPEBrooklyn, NY 112011801983390
- Anne Crenesse, MDBrooklyn, NY 112011306807144
- Maritza De La Rosa, M.D.Brooklyn, NY 112011245314392
- Marie Eloi-Stiven, MDBrooklyn, NY 112011326146010
- Barbara Haralson, MDBrooklyn, NY 112011245302702
- Mohammed Khan, MDBrooklyn, NY 112011205804051
- Samantha Lam, D.OBrooklyn, NY 112011306931779
- Fong Lee, MDBrooklyn, NY 112011265496434
Common questions
What is Elizabeth Mary Conway O'Callahan, MD's NPI number?
Elizabeth Mary Conway O'Callahan, MD's National Provider Identifier (NPI) is 1346773074, issued on Apr 10, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Elizabeth Mary Conway O'Callahan, MD located?
The NPPES record lists a practice address at 165 Smith St, Brooklyn, NY, 11201. Phone: (212) 441-4380. Providers update this record themselves, so call before visiting.
How can I verify Elizabeth Mary Conway O'Callahan, MD's license?
NPPES lists New York license number 305869, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Elizabeth Mary Conway O'Callahan, MD prescribe under Medicare Part D?
In 2024, Elizabeth Mary Conway O'Callahan, MD had 118 Medicare Part D claims for 21 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. 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.