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DR. PAUL E NACIER M.D.
NPI 1003873902
Internal Medicine - Gastroenterology in Brooklyn, NY

Active since April 26, 2006PECOS Enrolled
124 E 43RD ST, SUITE 1, BROOKLYN, NY 11203(718) 940-6166(718) 940-4964 Get Directions Write a Review

NPPES record last updated: January 16, 2015. Verified against the NPPES registry weekly; last sync: November 08, 2026.

About Dr. Paul E Nacier M.d. NPPES

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

DR. PAUL E NACIER M.D. (NPI 1003873902) is an individual gastroenterology provider in Brooklyn, New York, licensed in New York (144585) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1003873902
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameDR. PAUL E NACIERCredential: M.D.
Location Address124 E 43RD ST, SUITE 1Brooklyn, NY 11203-3049
Mailing Address124 E 43rd St, Suite 1Brooklyn, NY 11203-3049 · (718) 940-6166 · Fax (718) 940-4964
Phone(718) 940-6166
Fax(718) 940-4964
Sole ProprietorYes
Enumeration DateApril 26, 2006
Last NPPES UpdateJanuary 16, 2015
✔ NPI 1003873902 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in NY · 144585
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
124 E 43RD ST, Brooklyn, NY 11203
Open in Google Maps ↗

Other Identifiers 2

Medicare UPINB14362NY
OtherA300058444NY · Ptan

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Paul E Nacier 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 Paul Nacier reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

New York University
1,034 mi
Cardiovascular Disease
3301 QUANTUM BLVD
Boynton Beach, FL 33426
  • Reassigned Medicare billing, New York enrollment
  • 7,712 clinicians in this Medicare group
NPI 1285826438 (877) 648-2964

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11203 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
$154.28 typical visit price
range $67.40 – $203.53
Typical copayment $38.57 (range $16.85 – $50.88)
Most-billed visit code 99204
Established Patient
$117.62 typical visit price
range $21.66 – $164.45
Typical copayment $29.40 (range $5.41 – $41.11)
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 2

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

MISS SHARON A THOMAS RN, MSN, FNP
Nurse Practitioner (Family)
124 E 43RD ST, SUITE 1
BROOKLYN, NY 11203
Kings County (718) 940-6199
PAUL EDGARD NACIER, PHYSICIAN, P.C.
Internal Medicine (Gastroenterology)
124 E 43RD ST, SUITE 1
BROOKLYN, NY 11203
Kings County (718) 940-6166

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 Paul Nacier's NPI number?

The NPI number for Paul Nacier is 1003873902. It was assigned to this individual provider in the NPPES registry on April 26, 2006.

Where is Paul Nacier located?

Paul Nacier practices at 124 E 43rd St Suite 1, Brooklyn, NY 11203. The listed phone number is (718) 940-6166.

What is Paul Nacier's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Paul Nacier enrolled in Medicare?

Yes. Paul Nacier is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Paul Nacier's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Paul Nacier reassigns Medicare benefits to New York University (Boynton Beach, FL). 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 Paul Nacier'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 Paul Nacier was last updated on January 16, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.