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DR. ADRIAN ALBERTO DIEZ MD
NPI 1619499431
Emergency Medicine in Edison, NJ

Active since July 13, 2017PECOS EnrolledAccepts Medicare Assignment
50.33/100
CMS Quality Rating

NPPES record last updated: June 9, 2023. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jun 9, 2023, May 1, 2023, Jul 14, 2022 and 2 more (5 updates tracked since 2017).

About Dr. Adrian Alberto Diez Md NPPES

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

DR. ADRIAN ALBERTO DIEZ MD (NPI 1619499431) is an individual emergency medicine provider in Edison, New Jersey, licensed in New Jersey (25MA10779300) and active in the NPI registry since July 2017. He is enrolled in Medicare PECOS, is affiliated with Overlook Medical Center, and maintains a secondary practice location in New Brunswick.

NPPES Registry Identity

NPI1619499431
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameDR. ADRIAN ALBERTO DIEZCredential: MD
Location Address65 JAMES STEdison, NJ 08820-3947
Mailing Address65 James StEdison, NJ 08820-3947
Phone(732) 321-7000
Sole ProprietorNo
Medical School CMSOtherGraduated 2017
Enumeration DateJuly 13, 2017
Last NPPES UpdateJune 9, 20235 updates tracked since enumeration
NPPES CertifiedJune 9, 2023
✔ NPI 1619499431 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in NJ · 25MA10779300
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
65 JAMES ST, Edison, NJ 08820
Open in Google Maps ↗

Secondary Practice Location 1

Location 11 Robert Wood Johnson PlNew Brunswick, NJ 08901-1928 · Phone (732) 829-2000

Other Identifiers 1

Medicaid0737640NJ

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. Adrian Alberto Diez 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 ID2062833544
PECOS Enrollment IDI20200609003009
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 4

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.

Emergency department visit with high level of medical decision making 99285
An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.
360 services341 patients
Emergency department visit with moderate level of medical decision making 99284
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
123 services119 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
71 services69 patients
Emergency department visit with low level of medical decision making 99283
An emergency department visit for a problem of moderate severity involves immediate medical attention for issues like minor fractures, burns, or high fever. The healthcare team will assess your condition, provide necessary treatment, and may suggest further tests or admission if required.
17 services17 patients

Hospital Affiliations CMS Care Compare 2

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

Overlook Medical Center

Acute Care Hospitals · Summit, NJ
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number310051
Location99 Beauvoir AvenueSummit, NJ 07901 · Union County
Emergency services Birthing friendly

Jfk Medical Center

Acute Care Hospitals · Edison, NJ
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number310108
Location65 James StreetEdison, NJ 08820 · Middlesex County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 08820 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$98.09 typical visit price
range $63.84 – $190.92
Typical copayment $24.52 (range $15.96 – $47.73)
Most-billed visit code 99203
Established Patient
$111.57 typical visit price
range $20.97 – $155.92
Typical copayment $27.89 (range $5.24 – $38.98)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

50.33/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Individually scored
Quality33.33
Improvement Activities40
Cost30.61

Reported Quality Measures

Ultrasound Determination of Pregnancy Location for Pregnant Patients with Abdominal Pain
100%22 patients
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

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.

DR. LAMA EL ZEIN M.D
Family Medicine
65 JAMES ST
EDISON, NJ 08820
Middlesex County (732) 321-7487
MARLINE SPENCER RN, MSN, NP-C
Nurse Practitioner (Gerontology)
65 JAMES ST
EDISON, NJ 08820
Middlesex County (732) 744-5537
MARIA P MASIH MD
Family Medicine
65 JAMES ST
EDISON, NJ 08820
Middlesex County (732) 321-7487
KRISSA MATARLO-SMITH APN
Nurse Practitioner (Adult Health)
65 JAMES ST
EDISON, NJ 08820
Middlesex County (732) 321-7733
ASHLEY MARGARITONDO DPT
Physical Therapist
65 JAMES ST
EDISON, NJ 08820
Middlesex County (732) 321-7000
MICHAEL D. CALI MD
Emergency Medicine
65 JAMES ST
EDISON, NJ 08820
Middlesex County (732) 321-7000
STACEY JOU MD
Physical Medicine & Rehabilitation (Brain Injury Medicine)
65 JAMES ST
EDISON, NJ 08820
Middlesex County (732) 321-7070
MERARI SINGH APN
Nurse Practitioner
65 JAMES ST
EDISON, NJ 08820
Middlesex County (732) 321-7000

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 Adrian Diez's NPI number?

The NPI number for Adrian Diez is 1619499431. It was assigned to this individual provider in the NPPES registry on July 13, 2017.

Where is Adrian Diez located?

Adrian Diez practices at 65 James St, Edison, NJ 08820. The listed phone number is (732) 321-7000.

What is Adrian Diez's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Adrian Diez enrolled in Medicare?

Yes. Adrian Diez 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.

Is Adrian Diez affiliated with any hospitals?

According to CMS data, Adrian Diez is affiliated with Overlook Medical Center and Jfk Medical Center.

When was this NPI record last updated?

The NPPES record for Adrian Diez was last updated on June 9, 2023. 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.