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LUIS DIAZ MD
NPI 1861966178
Internal Medicine in Fair Lawn, NJ

Active since January 20, 2019PECOS EnrolledAccepts Medicare Assignment
14-01 BROADWAY STE B, FAIR LAWN, NJ 07410(201) 791-4544 Get Directions Write a Review

NPPES record last updated: November 10, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Nov 10, 2025, Sep 17, 2025, Jan 20, 2019 (3 updates tracked since 2019).

About Luis Diaz Md NPPES

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

LUIS DIAZ MD (NPI 1861966178) is an individual internal medicine provider in Fair Lawn, New Jersey, licensed in New Jersey (25MA12831900) and active in the NPI registry since January 2019. He is enrolled in Medicare PECOS, maintains a secondary practice location in Middle Village, and is a graduate of Other (2013).

NPPES Registry Identity

NPI1861966178
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameLUIS DIAZCredential: MD
Location Address14-01 BROADWAY STE BFair Lawn, NJ 07410-2001
Mailing Address680 Kinderkamack Rd Ste 300Oradell, NJ 07649-1600 · (305) 781-9994
Phone(201) 791-4544
Sole ProprietorNo
Medical School CMSOtherGraduated 2013
Enumeration DateJanuary 20, 2019
Last NPPES UpdateNovember 10, 20253 updates tracked since enumeration
NPPES CertifiedNovember 10, 2025
✔ NPI 1861966178 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Licenses✔ Licensed in NJ · 25MA12831900✔ Licensed in NY · P12405
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
14-01 BROADWAY STE B, Fair Lawn, NJ 07410
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Secondary Practice Location 1

Location 17721 66th DrMiddle Village, NY 11379-2620 · Phone (305) 781-9994

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

Luis Diaz 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 ID8921504507
PECOS Enrollment IDI20251002001014
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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 07410 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
$144.86 typical visit price
range $63.84 – $190.92
Typical copayment $36.21 (range $15.96 – $47.73)
Most-billed visit code 99204
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.

Other Providers at the Same Location NPPES

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

DR. NILAY RAMESH SHAH MD
Psychiatry & Neurology (Clinical Neurophysiology)
14-01 BROADWAY STE B
FAIR LAWN, NJ 07410
Bergen County (201) 791-4544

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 Luis Diaz's NPI number?

The NPI number for Luis Diaz is 1861966178. It was assigned to this individual provider in the NPPES registry on January 20, 2019.

Where is Luis Diaz located?

Luis Diaz practices at 14-01 Broadway Ste B, Fair Lawn, NJ 07410. The listed phone number is (201) 791-4544.

What is Luis Diaz's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Luis Diaz enrolled in Medicare?

Yes. Luis Diaz 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 Luis Diaz was last updated on November 10, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.