NPPES file of Aug 9, 2026

Glenn Fleischhacker, D.O.

Anesthesiology Physician · Plainview, NY

Glenn Fleischhacker, D.O. is an anesthesiology physician with a practice address in Plainview, New York, and NPI 1871599597, issued on Jun 27, 2005. Check the license (New York 188267, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1871599597
Name
Glenn Fleischhacker
Credential
D.O.
Primary taxonomy
Anesthesiology Physician 207L00000X
License number
188267 NY
Self-reported in NPPES; status is on the state search
Practice location
888 Old Country RD, Plainview, NY 11803
Phone
(516) 719-3000
Enumerated
Jun 27, 2005
Record last updated
Mar 20, 2023
Medicaid ID
01528472 NY
Medicare enrollment
Enrolled (PECOS I20051025000439); accepts Medicare assignment
Medical or professional school
New York College Of Osteo Medicine Of New York Institute Of Technology, 1990
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 888 Old Country RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Ahmed AbdeltawabPhysician Assistant1700745536
  2. Zachary Aberman, M.D.Orthopaedic Surgery Physician1679005391
  3. Alina Abraham, DOStudent in an Organized Health Care Education/Training Program1528908134
  4. Brandon Abrenica, DOStudent in an Organized Health Care Education/Training Program1093655995
  5. Sadaf AfifStudent in an Organized Health Care Education/Training Program1568265882
  6. Christina AgarunovPhysician Assistant1174934442

Verify Glenn Fleischhacker in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
    Search for license 188267
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the New York license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. North Shore - Lij Anesthesiology, PCPlainview, NY

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Glenn Fleischhacker among 5,062 anesthesiology physician records in New York

Glenn Fleischhacker, D.O. is one of 5,062 anesthesiology physician records with a practice address in New York. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 84% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 71% of these records are
  • Graduated1990 · median 2006 among the 3,612 with a school on file
  • Record last updated2023 · 56% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

15 anesthesiology physician records list a practice address in Plainview

They are 15 of the 1,588 NPPES records with a practice address in Plainview, and 5,062 anesthesiology physician records in New York.

The 8 anesthesiology physician records with the nearest ZIP codes

  1. Stuart Behrens, M.D.Plainview, NY 118031477559185
  2. Saul Dilson, D.O.Plainview, NY 118031467458174
  3. Steven Fratello, M.D.Plainview, NY 118031477559193
  4. Benjamin Kirschenbaum, M.D.Plainview, NY 118031710088539
  5. Philip Kurlander, M.D.Plainview, NY 118031073614806
  6. Kenneth Leung, M.D.Plainview, NY 118031700882438
  7. Ashok Masand, M.D.Plainview, NY 118031528142023
  8. James McLoughlin, M.D.Plainview, NY 118031134125867

Common questions

What is Glenn Fleischhacker, D.O.'s NPI number?

Glenn Fleischhacker, D.O.'s National Provider Identifier (NPI) is 1871599597, issued on Jun 27, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Glenn Fleischhacker, D.O. located?

The NPPES record lists a practice address at 888 Old Country RD, Plainview, NY, 11803. Phone: (516) 719-3000. Providers update this record themselves, so call before visiting.

How can I verify Glenn Fleischhacker, D.O.'s license?

NPPES lists New York license number 188267, 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.

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.