BENJAMIN BIEDERMAN MD
NPI 1518428069
Internal Medicine - Gastroenterology in Montclair, NJ

Active since March 27, 2019PECOS EnrolledAccepts Medicare Assignment
88 PARK ST, MONTCLAIR, NJ 07042(201) 630-7638(201) 630-7647 Get Directions Write a Review

NPPES record last updated: April 27, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Apr 27, 2026, Jan 5, 2026, Sep 4, 2025 (3 updates tracked since 2025).

About Benjamin Biederman Md NPPES

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

BENJAMIN BIEDERMAN MD (NPI 1518428069) is an individual gastroenterology provider in Montclair, New Jersey, licensed in New Jersey (25MA12785300) and active in the NPI registry since March 2019. He is enrolled in Medicare PECOS, is affiliated with St Joseph's University Medical Center Inc, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1518428069
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameBENJAMIN BIEDERMANCredential: MD
Location Address88 PARK STMontclair, NJ 07042-5915
Mailing Address1130 Mcbride Ave Fl 3Woodland Park, NJ 07424-3806 · (973) 785-2277 · Fax (973) 785-2355
Fax(201) 630-7647
Sole ProprietorNo
Medical School CMSNew York Medical CollegeGraduated 2019
Enumeration DateMarch 27, 2019
Last NPPES UpdateApril 27, 20263 updates tracked since enumeration
NPPES CertifiedApril 27, 2026
✔ NPI 1518428069 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 NJ · 25MA12785300
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.
88 PARK ST, Montclair, NJ 07042

Secondary Practice Locations 2

Location 1205 Browertown Rd Ste 201Woodland Park, NJ 07424-2610 · Phone (201) 630-7638 · Fax (201) 630-7647
Location 2225 Minnisink RdTotowa, NJ 07512-1804 · Phone (973) 569-6118

Accepted 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

Benjamin Biederman 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 ID7012245640
PECOS Enrollment IDI20250910004424
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 Reassignments

2

Medicare enrollment records show Benjamin Biederman reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Gastroenterology
1130 MCBRIDE AVE
Woodland Park, NJ 07424
  • Reassigned Medicare billing, New Jersey enrollment
  • 117 clinicians in this Medicare group
Internal Medicine
703 MAIN ST
Paterson, NJ 07503
  • Reassigned Medicare billing, New Jersey enrollment
  • 317 clinicians in this Medicare group

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

Hospital Affiliations CMS Care Compare

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

St Joseph's University Medical Center Inc

Acute Care Hospitals · Paterson, NJ
2/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number310019
Location703 Main StPaterson, NJ 07503 · Passaic County
Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 07042 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 15

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

Social Worker (Clinical)
88 PARK ST
MONTCLAIR, NJ 07042
Social Worker (Clinical)
88 PARK ST
MONTCLAIR, NJ 07042
Counselor (Professional)
88 PARK ST
MONTCLAIR, NJ 07042
Internal Medicine (Gastroenterology)
88 PARK ST
MONTCLAIR, NJ 07042
Counselor (Professional)
88 PARK ST
MONTCLAIR, NJ 07042
Social Worker (Clinical)
88 PARK ST
MONTCLAIR, NJ 07042
Social Worker (Clinical)
88 PARK ST
MONTCLAIR, NJ 07042
Community/Behavioral Health
88 PARK ST, SUITE 2
MONTCLAIR, NJ 07042

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 Benjamin Biederman's NPI number?

The NPI number for Benjamin Biederman is 1518428069. It was assigned to this individual provider in the NPPES registry on March 27, 2019.

Where is Benjamin Biederman located?

Benjamin Biederman practices at 88 Park St, Montclair, NJ 07042. The listed phone number is (201) 630-7638.

What is Benjamin Biederman's specialty?

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

Is Benjamin Biederman enrolled in Medicare?

Yes. Benjamin Biederman 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 organizations bill Medicare for Benjamin Biederman's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Benjamin Biederman reassigns Medicare benefits to 2 organizations: Gastroenterology Associates Of New Jersey, LLC (Woodland Park, NJ) and St Josephs Medical Group PC (Paterson, NJ). Each 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 Benjamin Biederman's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Benjamin Biederman accept?

Health plans from Oscar Health list Benjamin Biederman 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 Benjamin Biederman affiliated with any hospitals?

According to CMS data, Benjamin Biederman is affiliated with St Joseph's University Medical Center Inc.

When was this NPI record last updated?

The NPPES record for Benjamin Biederman was last updated on April 27, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.