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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. JEFFREY SPENCER MD
NPI 1609876853
Anesthesiology in Mount Kisco, NY

Active since July 29, 2005PECOS Enrolled
400 E MAIN ST, NORTHERN WESTCHESTER HOSPITAL, MOUNT KISCO, NY 10549(914) 666-1691 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Jeffrey Spencer Md NPPES

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

DR. JEFFREY SPENCER MD (NPI 1609876853) is an individual anesthesiology provider in Mount Kisco, New York, licensed in New York (175558) and active in the NPI registry since July 2005. He is enrolled in Medicare PECOS and is a graduate of Vanderbilt University School Of Medicine (1987).

NPPES Registry Identity

NPI1609876853
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameDR. JEFFREY SPENCERCredential: MD
Location Address400 E MAIN ST, NORTHERN WESTCHESTER HOSPITALMount Kisco, NY 10549-3417
Mailing Address43 Kensico Dr, 2nd FloorMount Kisco, NY 10549-1009 · (914) 666-8866 · Fax (914) 666-6777
Phone(914) 666-1691
Sole ProprietorNo
Medical School CMSVanderbilt University School Of MedicineGraduated 1987
Enumeration DateJuly 29, 2005
Last NPPES UpdateJuly 13, 2026
✔ NPI 1609876853 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in NY · 175558
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.
400 E MAIN ST, Mount Kisco, NY 10549
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Other Identifiers 1

Medicaid01565008NY

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Jeffrey Spencer Md 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 ID6709878952
PECOS Enrollment IDI20190326000644
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.

Areas of Expertise CMS Part B claims 5

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 other procedure on large bowel using an endoscope 00811
Anesthesia for an endoscopic procedure on the large bowel ensures comfort and relaxation during the procedure. You'll be given medication to make you drowsy or asleep, eliminating any discomfort. The medication can be administered through a vein or inhaled.
70 services70 patients
Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope 00731
This procedure involves the use of an endoscope, a flexible tube with a light and camera, to examine your esophagus, stomach, or upper small bowel. Anesthesia ensures you are comfortable and pain-free during the procedure.
33 services33 patients
Anesthesia for procedure on small and large bowel using an endoscope 00813
Anesthesia for an endoscopic procedure on the small and large bowel ensures comfort and relaxation during the procedure. It involves administering medicine to help you sleep or feel drowsy. This allows the doctor to examine your bowels without causing you discomfort or pain.
28 services28 patients
Anesthesia for exam of colon using an endoscope 00812
Anesthesia for a colon examination with an endoscope is a method used to ensure comfort during the procedure. It involves administering medication to help you relax or sleep, thus reducing discomfort as the endoscope, a thin, flexible tube, is navigated through your colon.
25 services25 patients
Anesthesia for other procedure on large bowel using an endoscope 00811
Anesthesia for an endoscopic procedure on the large bowel ensures comfort and relaxation during the procedure. You'll be given medication to make you drowsy or asleep, eliminating any discomfort. The medication can be administered through a vein or inhaled.
19 services19 patients

Other Providers at the Same Location NPPES 20

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

MS. MICHAEL ARLIA MD
Anesthesiology
400 E MAIN ST, NORTHERN WESTCHESTER HOSPITAL
MOUNT KISCO, NY 10549
Westchester County (914) 666-1691
DR. HERBERTH BALSELLS D.O.
Emergency Medicine
400 E MAIN ST
MOUNT KISCO, NY 10549
Westchester County (914) 666-1254
SABINA MUSOVIC SEFOVIC MD
Anesthesiology (Critical Care Medicine)
400 E MAIN ST
MOUNT KISCO, NY 10549
Westchester County (914) 666-1200
DR. ANDREW MONIK MOGGA MD
Student in an Organized Health Care Education/Training Program
400 E MAIN ST
MOUNT KISCO, NY 10549
Westchester County (914) 666-1931
MAZEN T KHALIFEH MD
Pediatrics (Neonatal-Perinatal Medicine)
400 E MAIN ST, NORTHERN WESTCHESTER HOSPITAL
MOUNT KISCO, NY 10549
Westchester County (914) 666-1862
NANDINI ANANDU MD
Internal Medicine
400 E MAIN ST, NORTHERN WESTCHESTER HOSPITAL
MOUNT KISCO, NY 10549
Westchester County (914) 666-1200
ANISHA DUVVI
Student in an Organized Health Care Education/Training Program
400 E MAIN ST
MOUNT KISCO, NY 10549
Westchester County (914) 666-1931
KAREN S ARTHUR MD
Surgery
400 E MAIN ST, NWH NORTH BUILDING 1ST FLOOR
MOUNT KISCO, NY 10549
Westchester County (914) 242-7640

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 Jeffrey Spencer's NPI number?

The NPI number for Jeffrey Spencer is 1609876853. It was assigned to this individual provider in the NPPES registry on July 29, 2005.

Where is Jeffrey Spencer located?

Jeffrey Spencer practices at 400 E Main St Northern Westchester Hospital, Mount Kisco, NY 10549. The listed phone number is (914) 666-1691.

What is Jeffrey Spencer's specialty?

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

Is Jeffrey Spencer enrolled in Medicare?

Yes. Jeffrey Spencer 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.

When was this NPI record last updated?

The NPPES record for Jeffrey Spencer was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 27 days 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.