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ERIC FEIN M.D.
NPI 1104987502
Anesthesiology in Florham Park, NJ

Active since December 12, 2006PECOS Enrolled
25B VREELAND RD, FLORHAM PARK, NJ 07932(973) 660-9334(973) 660-9732 Get Directions Write a Review

NPPES record last updated: January 17, 2008. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Eric Fein M.d. NPPES

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

ERIC FEIN M.D. (NPI 1104987502) is an individual anesthesiology provider in Florham Park, New Jersey, licensed in New Jersey (MA43823) and active in the NPI registry since December 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1104987502
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameERIC FEINCredential: M.D.
Location Address25B VREELAND RDFlorham Park, NJ 07932-1900
Mailing Address25b Vreeland Rd, Po Box 0037Florham Park, NJ 07932-1900 · (973) 660-9334 · Fax (973) 660-9732
Phone(973) 660-9334
Fax(973) 660-9732
Sole ProprietorNo
Enumeration DateDecember 12, 2006
Last NPPES UpdateJanuary 17, 2008
✔ NPI 1104987502 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in NJ · MA43823
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.
25B VREELAND RD, Florham Park, NJ 07932
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Other Identifiers 3

Medicare UPINC54121
Medicaid0989304NJ
Medicare PIN403916CNKNJ

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Eric Fein M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Eric Fein reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Rwjbh Observation Associates LLC
3.7 mi
Emergency Medicine
94 OLD SHORT HILLS RD
Livingston, NJ 07039
  • Reassigned Medicare billing, New Jersey enrollment
  • 1,913 clinicians in this Medicare group
NPI 1760095806 (888) 724-7123

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

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.

KEITH A. FLEISCHMAN D.O.
Anesthesiology
25B VREELAND RD
FLORHAM PARK, NJ 07932
Morris County (973) 660-9334
HOWARD SPEY M.D.
Anesthesiology
25B VREELAND RD
FLORHAM PARK, NJ 07932
Morris County (973) 660-9334
MARK HAUSDORFF M.D.
Anesthesiology
25B VREELAND RD
FLORHAM PARK, NJ 07932
Morris County (973) 660-9334
SOMA SHANKER M.D.
Anesthesiology
25B VREELAND RD
FLORHAM PARK, NJ 07932
Morris County (973) 660-9334
WIESLAW MAZUR M.D.
Anesthesiology
25B VREELAND RD
FLORHAM PARK, NJ 07932
Morris County (973) 660-9334
VIATCHESLAV KALININE M.D.
Anesthesiology
25B VREELAND RD
FLORHAM PARK, NJ 07932
Morris County (973) 660-9334
ROGELIO T. TRESPICIO M.D.
Anesthesiology
25B VREELAND RD
FLORHAM PARK, NJ 07932
Morris County (973) 660-9334
ALLEN MAIZES M.D.
Anesthesiology
25B VREELAND RD
FLORHAM PARK, NJ 07932
Morris County (973) 660-9334

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 Eric Fein's NPI number?

The NPI number for Eric Fein is 1104987502. It was assigned to this individual provider in the NPPES registry on December 12, 2006.

Where is Eric Fein located?

Eric Fein practices at 25B Vreeland Rd, Florham Park, NJ 07932. The listed phone number is (973) 660-9334.

What is Eric Fein's specialty?

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

Is Eric Fein enrolled in Medicare?

Yes. Eric Fein is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Eric Fein's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Eric Fein reassigns Medicare benefits to Rwjbh Observation Associates LLC (Livingston, 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 Eric Fein's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Eric Fein was last updated on January 17, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.