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VIVIEN HSU MD
NPI 1992875421
Internal Medicine - Rheumatology in New Brunswick, NJ

Active since November 09, 2006PECOS EnrolledAccepts Medicare Assignment
125 PATERSON ST, CLINICAL ACADEMIC BUILDING - SUITE 5200A, NEW BRUNSWICK, NJ 08901(732) 235-7217 Get Directions Write a Review

NPPES record last updated: April 17, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Vivien Hsu Md NPPES

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

VIVIEN HSU MD (NPI 1992875421) is an individual rheumatology provider in New Brunswick, New Jersey, licensed in New Jersey (25MA04721500) and active in the NPI registry since November 2006. She is enrolled in Medicare PECOS, is affiliated with Robert Wood Johnson University Hospital, and is a graduate of Rutgers New Jersey Medical School (1983).

NPPES Registry Identity

NPI1992875421
Entity TypeIndividualFemale
Primary Taxonomy207RR0500X
Provider Legal NameVIVIEN HSUCredential: MD
Location Address125 PATERSON ST, CLINICAL ACADEMIC BUILDING - SUITE 5200ANew Brunswick, NJ 08901-1962
Mailing Address66 W Gilbert St, 2nd FloorTinton Falls, NJ 07701-4947 · (732) 212-0051 · Fax (732) 212-0713
Phone(732) 235-7217
Sole ProprietorNo
Medical School CMSRutgers New Jersey Medical SchoolGraduated 1983
Enumeration DateNovember 9, 2006
Last NPPES UpdateApril 17, 2024
NPPES CertifiedApril 17, 2024
✔ NPI 1992875421 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians
Taxonomy Code207RR0500X
License✔ Licensed in NJ · 25MA04721500
Definition
An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.
Also ListedInternal MedicineTaxonomy 207R00000X · License 25MA04721500 (NJ)
125 PATERSON ST, New Brunswick, NJ 08901
Open in Google Maps ↗

Other Identifiers 1

Medicaid7064900NJ

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

Vivien Hsu 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 ID7911921085
PECOS Enrollment IDI20060117000793
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 Vivien Hsu reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Rutgers Health-Rwj Scleroderma Program
Same address
Rheumatology
125 PATERSON ST, SUITE 5200A
New Brunswick, NJ 08901
  • Reassigned Medicare billing, New Jersey enrollment
  • 6 clinicians in this Medicare group
NPI 1003988635 (732) 235-7217
Rutgers Health-Rwj Scleroderma Program
Same address
Rheumatology
125 PATERSON ST, SUITE 5200A
New Brunswick, NJ 08901
  • Reassigned Medicare billing, New Jersey enrollment
  • 641 clinicians in this Medicare group
NPI 1003988635 (732) 235-7217

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 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.

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
151 services99 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
46 services37 patients
Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or G2212
This service refers to extended doctor visits where your healthcare provider spends additional time evaluating and managing your health beyond the primary procedure's required time. This includes each extra 15 minutes spent by the physician on the same day as the primary service.
24 services18 patients
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205
This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.
16 services16 patients

Hospital Affiliations CMS Care Compare 3

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

Robert Wood Johnson University Hospital

Acute Care Hospitals · New Brunswick, NJ
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number310038
LocationOne Robert Wood Johnson PlaceNew Brunswick, NJ 08901 · Middlesex County
Emergency services Birthing friendly

Monmouth Medical Center

Acute Care Hospitals · Long Branch, NJ
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number310075
Location300 Second AvenueLong Branch, NJ 07740 · Monmouth County
Emergency services Birthing friendly

Centrastate Medical Center

Acute Care Hospitals · Freehold, NJ
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number310111
Location901 West Main StreetFreehold, NJ 07728 · Monmouth County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 08901 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.

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
3 suppliers48 claims48 services$60.02 avg. paid by Medicare
Portable oxygen concentrator, rental E1392
DME-Oxygen and Supplies · category DC002N
3 suppliers48 claims48 services$30.02 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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. RICARDO E VERDINER MD
Anesthesiology (Critical Care Medicine)
125 PATERSON ST
NEW BRUNSWICK, NJ 08901
Middlesex County (732) 235-6155
DR. IMRAN KHAN M.D., PH.D.
Internal Medicine
125 PATERSON ST, SUITE 5200
NEW BRUNSWICK, NJ 08901
Middlesex County (732) 235-6531
RUTGERS HEALTH-RWJ SCLERODERMA PROGRAM
Internal Medicine (Rheumatology)
125 PATERSON ST, SUITE 5200A
NEW BRUNSWICK, NJ 08901
Middlesex County (732) 235-7217
DOROTEA DEFRANCESCO PA
Physician Assistant (Surgical)
125 PATERSON ST, SUITE 4100
NEW BRUNSWICK, NJ 08901
Middlesex County (732) 235-7800
KRISH KHATRI M.D.
Internal Medicine (Endocrinology, Diabetes & Metabolism)
125 PATERSON ST
NEW BRUNSWICK, NJ 08901
Middlesex County (732) 235-7751
ADEOLA AWOMOLO MD
Obstetrics & Gynecology (Maternal & Fetal Medicine)
125 PATERSON ST
NEW BRUNSWICK, NJ 08901
Middlesex County (718) 909-4661
DR. MANISH S PATEL MD
Internal Medicine
125 PATERSON ST, ROOM 2330
NEW BRUNSWICK, NJ 08901
Middlesex County (732) 235-6539
FRANK JIANG
Internal Medicine
125 PATERSON ST, CLINICAL ACADEMIC BUILDING - SUITE 5100A
NEW BRUNSWICK, NJ 08901
Middlesex County (832) 235-6968

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 Vivien Hsu's NPI number?

The NPI number for Vivien Hsu is 1992875421. It was assigned to this individual provider in the NPPES registry on November 9, 2006.

Where is Vivien Hsu located?

Vivien Hsu practices at 125 Paterson St Clinical Academic Building - Suite 5200A, New Brunswick, NJ 08901. The listed phone number is (732) 235-7217.

What is Vivien Hsu's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

Is Vivien Hsu enrolled in Medicare?

Yes. Vivien Hsu 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 Vivien Hsu's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Vivien Hsu reassigns Medicare benefits to 2 organizations: Rutgers Health-Rwj Scleroderma Program (New Brunswick, NJ) and Rutgers Health-Rwj Scleroderma Program (New Brunswick, 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 Vivien Hsu's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Vivien Hsu accept?

Health plans from Ambetter Health and Ambetter Health of Delaware list Vivien Hsu 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 Vivien Hsu affiliated with any hospitals?

According to CMS data, Vivien Hsu is affiliated with Robert Wood Johnson University Hospital, Monmouth Medical Center and Centrastate Medical Center.

When was this NPI record last updated?

The NPPES record for Vivien Hsu was last updated on April 17, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.