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DR. LAUREN FLEISCHER M.D.
NPI 1073529228
Anesthesiology in Stony Brook, NY

Active since July 31, 2006PECOS EnrolledAccepts Medicare Assignment
HEALTH SCIENCES CTR, L4, #060, STONY BROOK, NY 11794(631) 444-2975 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Lauren Fleischer M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. LAUREN FLEISCHER M.D. (NPI 1073529228) is an individual anesthesiology provider in Stony Brook, New York, licensed in New York (166571) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS, is affiliated with Suny/stony Brook University Hospital, and is a graduate of Icahn School Of Medicine At Mount Sinai (1983).

NPPES Registry Identity

NPI1073529228
Entity TypeIndividualFemale
Primary Taxonomy207L00000X
Provider Legal NameDR. LAUREN FLEISCHERCredential: M.D.
Location AddressHEALTH SCIENCES CTR, L4, #060Stony Brook, NY 11794-8480
Mailing AddressP.o. Box 1559Stony Brook, NY 11794
Phone(631) 444-2975
Sole ProprietorNo
Medical School CMSIcahn School Of Medicine At Mount SinaiGraduated 1983
Enumeration DateJuly 31, 2006
Last NPPES UpdateJuly 8, 2007
✔ NPI 1073529228 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in NY · 166571
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
HEALTH SCIENCES CTR, Stony Brook, NY 11794
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Other Identifiers 4

Other55H191NY · Empire Bc.bs
Medicare ID-Type Unspecified55H191NY
Medicaid01421241NY
Medicare UPINF60111NY

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Lauren Fleischer M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID3173668415
PECOS Enrollment IDI20100311000018
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Lauren Fleischer reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Stony Brook Anaesthesiology, University Faculty Practice Corporation
0.4 mi
Anesthesiology
SUNY @ STONY BROOK, HSC, L4, RM 060
Stony Brook, NY 11794
  • Reassigned Medicare billing, New York enrollment
  • 103 clinicians in this Medicare group
NPI 1801841184 (631) 444-2976

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 2

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Anesthesia for x-ray or radiation therapy 01922
Anesthesia for x-ray or radiation therapy involves administering medication to help you relax or sleep during the procedure. It's used to ensure comfort, minimize movement, and reduce anxiety. The type of anesthesia used depends on the procedure and patient's health.
49 services49 patients
Anesthesia for other procedure on urinary system through urethra 00910
Anesthesia for a procedure on the urinary system through the urethra involves using medicine to numb sensation in the area. This is done to ensure you feel no pain or discomfort during the procedure. The medicine can be given locally, regionally, or generally, depending on the specifics of your procedure.
14 services14 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Suny/Stony Brook University Hospital

Acute Care Hospitals · Stony Brook, NY
4/5 CMS rating
OwnershipGovernment - State
CMS Certification Number330393
LocationHealth Sciences Center SunyStony Brook, NY 11794 · Suffolk County
Emergency services Birthing friendly

Other Providers at the Same Location NPPES 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. SYED ALI AZIM M.D.
Anesthesiology
HEALTH SCIENCES CTR, L4, #060
STONY BROOK, NY 11794
Suffolk County (631) 444-2975
ROGER FAN MD
Internal Medicine (Cardiovascular Disease)
HEALTH SCIENCES CTR, T16-080
STONY BROOK, NY 11794
Suffolk County (631) 444-1226
DR. OLENA KSOVRELI M.D.
Internal Medicine
HEALTH SCIENCES CTR, STONY BROOK UNIVERSITY
STONY BROOK, NY 11794
Suffolk County (631) 444-8478

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Lauren Fleischer's NPI number?

The NPI number for Lauren Fleischer is 1073529228. It was assigned to this individual provider in the NPPES registry on July 31, 2006.

Where is Lauren Fleischer located?

Lauren Fleischer practices at Health Sciences Ctr L4, #060, Stony Brook, NY 11794. The listed phone number is (631) 444-2975.

What is Lauren Fleischer's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Lauren Fleischer enrolled in Medicare?

Yes. Lauren Fleischer is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Lauren Fleischer's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Lauren Fleischer reassigns Medicare benefits to Stony Brook Anaesthesiology, University Faculty Practice Corporation (Stony Brook, NY). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Lauren Fleischer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Lauren Fleischer affiliated with any hospitals?

According to CMS data, Lauren Fleischer is affiliated with Suny/Stony Brook University Hospital.

When was this NPI record last updated?

The NPPES record for Lauren Fleischer was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.