1. Home
  2. Directory
  3. New York
  4. New York New York
  5. Anesthesiology
  6. NPI Profile

ELIZABETH DAY
NPI 1942838545
Anesthesiology in New York, NY

Active since March 30, 2020PECOS EnrolledAccepts Medicare Assignment
622 W 168TH ST PH 5-133, NEW YORK, NY 10032(212) 305-3226 Get Directions Write a Review

NPPES record last updated: October 1, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Elizabeth Day NPPES

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

ELIZABETH DAY (NPI 1942838545) is an individual anesthesiology provider in New York, New York, licensed in New Jersey (25MA12589700) and active in the NPI registry since March 2020. She is enrolled in Medicare PECOS, is affiliated with Morristown Medical Center, and is a graduate of Rutgers R W Johnson Medical School (cam/new Bruns/pisc) (2020).

NPPES Registry Identity

NPI1942838545
Entity TypeIndividualFemale
Primary Taxonomy207L00000X
Provider Legal NameELIZABETH DAY
Location Address622 W 168TH ST PH 5-133New York, NY 10032-3720
Mailing Address622 W 168th St Ph 5-133New York, NY 10032-3720 · (212) 305-3226
Phone(212) 305-3226
Sole ProprietorNo
Medical School CMSRutgers R W Johnson Medical School (cam/new Bruns/pisc)Graduated 2020
Enumeration DateMarch 30, 2020
Last NPPES UpdateOctober 1, 2025
NPPES CertifiedOctober 1, 2025
✔ NPI 1942838545 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in NJ · 25MA12589700
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.
622 W 168TH ST PH 5-133, New York, NY 10032
Open in Google Maps ↗

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

Elizabeth Day 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 ID4082112446
PECOS Enrollment IDI20250813004069
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 Elizabeth Day reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Anesthesia Associates Of Morristown PA
28 mi
Specialist
100 MADISON AVE, MORRISTOWN MEDICAL CENTER
Morristown, NJ 07962
  • Reassigned Medicare billing, New Jersey enrollment
  • 207 clinicians in this Medicare group
NPI 1922057678 (201) 943-5831

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

Hospital Affiliations CMS Care Compare 2

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

Morristown Medical Center

Acute Care Hospitals · Morristown, NJ
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number310015
Location100 Madison AveMorristown, NJ 07960 · Morris County
Emergency services Birthing friendly

Hackettstown Medical Center

Acute Care Hospitals · Hackettstown, NJ
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number310115
Location651 Willow Grove StHackettstown, NJ 07840 · Warren County
Emergency services

Other Providers at the Same Location NPPES 17

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

PETER QI MD
Anesthesiology
622 W 168TH ST PH 5-133
NEW YORK, NY 10032
New York County (212) 305-3226
DR. ANDREW ROBERT KNAPP MD
Anesthesiology
622 W 168TH ST PH 5-133
NEW YORK, NY 10032
New York County (212) 305-3226
JIN CHEN
Student in an Organized Health Care Education/Training Program
622 W 168TH ST PH 5-133
NEW YORK, NY 10032
New York County (212) 305-3226
DR. CAROLYN P. THAI DO
Anesthesiology
622 W 168TH ST PH 5-133
NEW YORK, NY 10032
New York County (212) 305-5232
ISABELLE KAO
Anesthesiology
622 W 168TH ST PH 5-133
NEW YORK, NY 10032
New York County (212) 305-3226
JENNIFER FONG
Anesthesiology
622 W 168TH ST PH 5-133
NEW YORK, NY 10032
New York County (212) 305-3226
DR. STEPHEN JOHN LORENZEN MD
Anesthesiology
622 W 168TH ST PH 5-133
NEW YORK, NY 10032
New York County (212) 305-3226
LAURA LOMBARDI-KARL
Pain Medicine (Interventional Pain Medicine)
622 W 168TH ST PH 5-133
NEW YORK, NY 10032
New York County (212) 305-3226

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 Elizabeth Day's NPI number?

The NPI number for Elizabeth Day is 1942838545. It was assigned to this individual provider in the NPPES registry on March 30, 2020.

Where is Elizabeth Day located?

Elizabeth Day practices at 622 W 168th St Ph 5-133, New York, NY 10032. The listed phone number is (212) 305-3226.

What is Elizabeth Day's specialty?

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

Is Elizabeth Day enrolled in Medicare?

Yes. Elizabeth Day 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 Elizabeth Day's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Elizabeth Day reassigns Medicare benefits to Anesthesia Associates Of Morristown PA (Morristown, NJ). 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 Elizabeth Day's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Elizabeth Day affiliated with any hospitals?

According to CMS data, Elizabeth Day is affiliated with Morristown Medical Center and Hackettstown Medical Center.

When was this NPI record last updated?

The NPPES record for Elizabeth Day was last updated on October 1, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 months 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.