Deirdre Harrington, M.D.
Internal Medicine Physician · Flushing, NY
Deirdre Harrington, M.D. is an internal medicine physician with a practice address in Flushing, New York, and NPI 1811421944, issued on Apr 15, 2017. Check the license (New York 311594, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Deirdre Harrington
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 311594 NY
Self-reported in NPPES; status is on the state search - Practice location
- 5645 Main St, Flushing, NY 11355
- Phone
- (718) 670-2000
- Enumerated
- Apr 15, 2017
- Record last updated
- Apr 27, 2022
- Medicare enrollment
- Enrolled (PECOS I20210917002173); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 12,067 in New York → Look up another NPI →
Also registered at 5645 Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Jonathan Abayev, RPA-CPhysician Assistant1952580102
- Mohammed Abdelrehem, PA-CPhysician Assistant1689569253
- Ghaith AbdullahStudent in an Organized Health Care Education/Training Program1205776382
- Abbas AbediStudent in an Organized Health Care Education/Training Program1598409948
- Mariebelle AbelardeCertified Registered Nurse Anesthetist1396116604
Verify Deirdre Harrington 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 311594Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% fewer Medicare Part D claims than the average internal medicine physician in 2024
460 Medicare Part D claims for 196 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 22 claims were for opioids.
Most prescribed
- Prednisone28 claims
- Cefpodoxime Proxetil25 claims
- Doxycycline Hyclate18 claims
- Pantoprazole Sodium18 claims
- Amoxicillin-Clavulanate Potass15 claims
- Furosemide12 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: $82.91
5 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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.
Bills Medicare through 4 group practices
- East Post Road Medical Services PCWhite Plains, NY
- New York Medical Physician Associates PCPoughkeepsie, NY
- North Shore-Lij Medical PCNew York, NY
- Port Emergency Medical Services PCFar Rockaway, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Deirdre Harrington among 12,067 internal medicine physician records in New York
Deirdre Harrington, M.D. is one of 12,067 internal medicine physician records with a practice address in New York. 79% 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 80% of them.
- NPI issued2017 · 80% of these records are older, 18% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2017 · median 2002 among the 7,221 with a school on file
- Record last updated2022 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
242 internal medicine physician records list a practice address in Flushing
They are 242 of the 6,354 NPPES records with a practice address in Flushing, and 12,067 internal medicine physician records in New York.
All 12,067 in New York → Every provider in Flushing → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
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- Min Cai, M.D.Flushing, NY 113551003813676
- Tak Chan, M.D.Flushing, NY 113551265437842
- Vincent Chua, M.D.Flushing, NY 113551841278579
- Jiangping GanFlushing, NY 113551134199920
- Mohinder Gupta, MDFlushing, NY 113551659337285
- Huajun Huang, M.D.Flushing, NY 113551033172143
- Sherman Klein, M.D.Flushing, NY 113551558340992
Common questions
What is Deirdre Harrington, M.D.'s NPI number?
Deirdre Harrington, M.D.'s National Provider Identifier (NPI) is 1811421944, issued on Apr 15, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Deirdre Harrington, M.D. located?
The NPPES record lists a practice address at 5645 Main St, Flushing, NY, 11355. Phone: (718) 670-2000. Providers update this record themselves, so call before visiting.
How can I verify Deirdre Harrington, M.D.'s license?
NPPES lists New York license number 311594, 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 Deirdre Harrington, M.D. prescribe under Medicare Part D?
In 2024, Deirdre Harrington, M.D. had 460 Medicare Part D claims for 196 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.