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DENNIS GEORGE GRECH MD
NPI 1144314022
Anesthesiology in Newark, NJ

Active since October 03, 2006PECOS EnrolledAccepts Medicare Assignment
73.27/100
CMS Quality Rating
150 BERGEN ST, NEWARK, NJ 07103(856) 235-1983 Get Directions Write a Review

NPPES record last updated: December 8, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Dec 8, 2022, Oct 13, 2022 (2 updates tracked since 2022).

About Dennis George Grech Md NPPES

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

DENNIS GEORGE GRECH MD (NPI 1144314022) is an individual anesthesiology provider in Newark, New Jersey, licensed in New Jersey (25MA08151600) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS, is affiliated with The University Hospital, and maintains a secondary practice location in Hackensack.

NPPES Registry Identity

NPI1144314022
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameDENNIS GEORGE GRECHCredential: MD
Location Address150 BERGEN STNewark, NJ 07103-2496
Mailing AddressPo Box 18914Newark, NJ 07191-8914 · (201) 488-0066 · Fax (201) 488-6769
Phone(856) 235-1983
Sole ProprietorNo
Medical School CMSOtherGraduated 2001
Enumeration DateOctober 3, 2006
Last NPPES UpdateDecember 8, 20222 updates tracked since enumeration
NPPES CertifiedDecember 8, 2022
✔ NPI 1144314022 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in NJ · 25MA08151600
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.
150 BERGEN ST, Newark, NJ 07103
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Secondary Practice Location 1

Location 130 Prospect AveHackensack, NJ 07601-1914 · Phone (201) 488-0066 · Fax (201) 488-6769

Other Identifiers 3

Medicaid02823710NY
OtherP00376802NJ · Railroad Medicare
Medicaid0114286NJ

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, Ambetter Health of Delaware.Insurance ›

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

Dennis George Grech 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 ID6608979380
PECOS Enrollment IDI20070319000189
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 Dennis Grech reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

University Physician Associates Of New Jersey Inc
Same address
Anesthesiology
150 BERGEN ST
Newark, NJ 07103
  • Reassigned Medicare billing, New Jersey enrollment
  • 57 clinicians in this Medicare group
NPI 1225048820 (973) 972-5007

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 shock wave therapy for urinary system stones without water bath 00873
Anesthesia for shock wave therapy helps in comfortably breaking down urinary system stones. This is done without a water bath, using a device that sends shock waves to disintegrate the stones into small pieces, making them easier to pass naturally.
88 services83 patients
Anesthesia for procedure on anus and rectum 00902
Anesthesia for procedures on the anus and rectum ensures comfort during medical procedures. It involves the administration of medication to numb the area or induce sleep, so you don't feel pain or discomfort. This helps doctors perform necessary procedures smoothly and effectively.
33 services33 patients

Hospital Affiliations CMS Care Compare

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

The University Hospital

Acute Care Hospitals · Newark, NJ
1/5 CMS rating
OwnershipGovernment - State
CMS Certification Number310119
Location150 Bergen StNewark, NJ 07103 · Essex County
Emergency services Birthing friendly

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

73.27/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality44.89
Promoting Interoperability83
Improvement Activities40
Cost47.69

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.

MR. ARIEL LIPPA, LPC, LCADC, NCC.
Counselor (Professional)
150 BERGEN ST
NEWARK, NJ 07103
Essex County (973) 972-4300
GABRIEL HANNA
Student in an Organized Health Care Education/Training Program
150 BERGEN ST
NEWARK, NJ 07103
Essex County (201) 397-5249
ADRIANA NOEMI GONZALEZ MD
Emergency Medicine
150 BERGEN ST
NEWARK, NJ 07103
Essex County (973) 972-4300
DR. SAFIA ANSARI DO
Student in an Organized Health Care Education/Training Program
150 BERGEN ST
NEWARK, NJ 07103
Essex County (973) 972-4300
MERRY ZHAI MD
Student in an Organized Health Care Education/Training Program
150 BERGEN ST
NEWARK, NJ 07103
Essex County (973) 972-4300
HEATHER WANG
Student in an Organized Health Care Education/Training Program
150 BERGEN ST
NEWARK, NJ 07103
Essex County (973) 972-4300
KOPAL BANSAL MD
Student in an Organized Health Care Education/Training Program
150 BERGEN ST
NEWARK, NJ 07103
Essex County (973) 972-4300
ADRIENNE-VYOLET BALK MD
Student in an Organized Health Care Education/Training Program
150 BERGEN ST
NEWARK, NJ 07103
Essex County (973) 972-4300

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 Dennis Grech's NPI number?

The NPI number for Dennis Grech is 1144314022. It was assigned to this individual provider in the NPPES registry on October 3, 2006.

Where is Dennis Grech located?

Dennis Grech practices at 150 Bergen St, Newark, NJ 07103. The listed phone number is (856) 235-1983.

What is Dennis Grech's specialty?

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

Is Dennis Grech enrolled in Medicare?

Yes. Dennis Grech 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 Dennis Grech's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Dennis Grech reassigns Medicare benefits to University Physician Associates Of New Jersey Inc (Newark, 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 Dennis Grech's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Dennis Grech accept?

Health plans from Ambetter Health and Ambetter Health of Delaware list Dennis Grech as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Dennis Grech affiliated with any hospitals?

According to CMS data, Dennis Grech is affiliated with The University Hospital.

When was this NPI record last updated?

The NPPES record for Dennis Grech was last updated on December 8, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.