Kathleen Tierney-Oconnor, M.D.
Pediatrics Physician · Great Neck, NY
Kathleen Tierney-Oconnor, M.D. is a pediatrics physician with a practice address in Great Neck, New York, and NPI 1295874741, issued on Feb 5, 2007. Check the license (New York 201656, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Kathleen Tierney-Oconnor
- Credential
- M.D.
- Primary taxonomy
- Pediatrics Physician 208000000X
- License number
- 201656 NY
Self-reported in NPPES; status is on the state search - Practice location
- 833 Northern Blvd, Great Neck, NY 11021
- Phone
- (516) 504-0606
- Enumerated
- Feb 5, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (516) 504-0808
- Entity
- Type 1 · individual
8 nearest pediatrics physician records → All 5,795 in New York → Look up another NPI →
Also registered at 833 Northern Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Kathleen Tierney-Oconnor 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 201656Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
73% fewer Medicare Part D claims than the average pediatrics physician in 2024
103 Medicare Part D claims, against an average of 375 among the 5,609 providers of this specialty who prescribed in Part D.
Most prescribed
- Chlorhexidine Gluconate14 claims
- Mupirocin12 claims
- Nystatin12 claims
- Mometasone Furoate11 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.
Industry payments in 2024: $401.99
19 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer Inc. The 21,580 providers of this specialty with any payment received $842.05 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Kathleen Tierney-Oconnor among 5,795 pediatrics physician records in New York
Kathleen Tierney-Oconnor, M.D. is one of 5,795 pediatrics physician records with a practice address in New York. 36% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 49% of them.
- NPI issued2007 · 49% of these records are older, 41% newer
- In a Medicare fileYes · 36% of these records are
- In the CMS Doctors and Clinicians fileNo · 8% of these records are
- Record last updated2007 · 66% 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 New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
35 pediatrics physician records list a practice address in Great Neck
They are 35 of the 2,508 NPPES records with a practice address in Great Neck, and 5,795 pediatrics physician records in New York.
All 5,795 in New York → Every provider in Great Neck → Pediatrics Physician nationwide →
The 8 pediatrics physician records with the nearest ZIP codes
- Daniel Benilevi, M.D.Great Neck, NY 110211912941071
- Joshua Frank, MDGreat Neck, NY 110211952494098
- Eric Gould, M.D.Great Neck, NY 110211043304678
- Robert Gould, M.D.Great Neck, NY 110211588740336
- Jacob Grijnsztein, MDGreat Neck, NY 110211083708390
- Susan Hyman, MDGreat Neck, NY 110211881789097
- Michael Khadavi, MDGreat Neck, NY 110211982612883
- Marina Milman, MDGreat Neck, NY 110211598859803
Common questions
What is Kathleen Tierney-Oconnor, M.D.'s NPI number?
Kathleen Tierney-Oconnor, M.D.'s National Provider Identifier (NPI) is 1295874741, issued on Feb 5, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Kathleen Tierney-Oconnor, M.D. located?
The NPPES record lists a practice address at 833 Northern Blvd, Great Neck, NY, 11021. Phone: (516) 504-0606. Providers update this record themselves, so call before visiting.
How can I verify Kathleen Tierney-Oconnor, M.D.'s license?
NPPES lists New York license number 201656, 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 Kathleen Tierney-Oconnor, M.D. prescribe under Medicare Part D?
In 2024, Kathleen Tierney-Oconnor, M.D. had 103 Medicare Part D claims; the average among pediatrics physician prescribers was 375. 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.