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DR. GERARDO VILLARUZ ESTEVEZ MD
NPI 1659379865
Family Medicine - Geriatric Medicine in Edison, NJ

Active since July 12, 2005PECOS EnrolledAccepts Medicare Assignment
1931 OAK TREE RD, SUITE 201, EDISON, NJ 08820(732) 452-0680(732) 452-9136 Get Directions Write a Review

NPPES record last updated: April 11, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Apr 11, 2024, Mar 13, 2017, Mar 28, 2016 (3 updates tracked since 2016).

About Dr. Gerardo Villaruz Estevez Md NPPES

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

DR. GERARDO VILLARUZ ESTEVEZ MD (NPI 1659379865) is an individual geriatric medicine provider in Edison, New Jersey, licensed in New Jersey (25MA05968800) and active in the NPI registry since July 2005. He is enrolled in Medicare PECOS, is affiliated with Robert Wood Johnson University Hospital, and is a graduate of Other (1987).

NPPES Registry Identity

NPI1659379865
Entity TypeIndividualMale
Primary Taxonomy207QG0300X
Provider Legal NameDR. GERARDO VILLARUZ ESTEVEZCredential: MD
Location Address1931 OAK TREE RD, SUITE 201Edison, NJ 08820-2072
Mailing Address1931 Oak Tree Rd, Suite 201Edison, NJ 08820-2072 · (732) 452-0680 · Fax (732) 452-9136
Phone(732) 452-0680
Fax(732) 452-9136
Sole ProprietorNo
Medical School CMSOtherGraduated 1987
Enumeration DateJuly 12, 2005
Last NPPES UpdateApril 11, 20243 updates tracked since enumeration
NPPES CertifiedApril 11, 2024
✔ NPI 1659379865 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyFamily Medicine · Geriatric MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207QG0300X
License✔ Licensed in NJ · 25MA05968800
Definition
A family medicine physician with special knowledge of the aging process and special skills in the diagnostic, therapeutic, preventive and rehabilitative aspects of illness in the elderly. This specialist cares for geriatric patients in the patient's home, the office, long-term care settings such as nursing homes, and the hospital.
Also ListedFamily MedicineTaxonomy 207Q00000X · License 25MA05968800 (NJ)
1931 OAK TREE RD, Edison, NJ 08820
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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

Dr. Gerardo Villaruz Estevez 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 ID4486640463
PECOS Enrollment IDI20040423001002
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

3

Medicare enrollment records show Gerardo Estevez reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Saint Peter's Healthcare System Physician Associates
7.1 mi
General Practice
254 EASTON AVE
New Brunswick, NJ 08901
  • Reassigned Medicare billing, New Jersey enrollment
  • 105 clinicians in this Medicare group
NPI 1548569361 (732) 745-6651
Rwjbh Primary Care Services
14 mi
Internal Medicine
95 OLD SHORT HILLS RD
West Orange, NJ 07052
  • Reassigned Medicare billing, New Jersey enrollment
  • 428 clinicians in this Medicare group
NPI 1265037501 (973) 322-5000
Central Jersey Urgent Care
29 mi
Urgent Care
731 HIGHWAY 35, UNIT G
Ocean, NJ 07712
  • Reassigned Medicare billing, New Jersey enrollment
  • 130 clinicians in this Medicare group
NPI 1316285091 (732) 455-8444

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 10

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 low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
293 services196 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
215 services215 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.
181 services135 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000
An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.
74 services73 patients
Administration of influenza virus vaccine G0008
The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.
73 services73 patients
Influenza vaccine split virus, preservative free 90662
The Influenza Vaccine Split Virus, preservative-free, is a flu shot to protect against the influenza virus. It is made from parts of inactivated flu viruses and doesn't contain preservatives, reducing potential side effects. It helps your body develop immunity to the flu.
72 services72 patients

Hospital Affiliations CMS Care Compare 2

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

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.

Referred Medical Equipment & Supplies CMS DME claims 3

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

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
15 suppliers30 claims63 services$5.54 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
10 suppliers16 claims21 services$0.88 avg. paid by Medicare
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
2 suppliers13 claims13 services$55.51 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 4

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

OAK TREE SURGERY CENTER, LLC
Clinic/Center (Ambulatory Surgical)
1931 OAK TREE RD
EDISON, NJ 08820
Middlesex County (732) 603-8603
THE JEWISH RENAISSANCE FOUNDATION, INC.
Clinic/Center (Federally Qualified Health Center (FQHC))
1931 OAK TREE RD
EDISON, NJ 08820
Middlesex County (732) 482-9600
GERARDO V. ESTEVEZ. MD PA
Family Medicine
1931 OAK TREE RD, SUITE 201
EDISON, NJ 08820
Middlesex County (732) 452-0680
THE JEWISH RENAISSANCE FOUNDATION, INC.
Clinic/Center (Federally Qualified Health Center (FQHC))
1931 OAK TREE RD
EDISON, NJ 08820
Middlesex County (732) 482-9600

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 Gerardo Estevez's NPI number?

The NPI number for Gerardo Estevez is 1659379865. It was assigned to this individual provider in the NPPES registry on July 12, 2005.

Where is Gerardo Estevez located?

Gerardo Estevez practices at 1931 Oak Tree Rd Suite 201, Edison, NJ 08820. The listed phone number is (732) 452-0680.

What is Gerardo Estevez's specialty?

The primary specialty registered for this NPI is Family Medicine, specializing in Geriatric Medicine, with taxonomy code 207QG0300X.

Is Gerardo Estevez enrolled in Medicare?

Yes. Gerardo Estevez 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 Gerardo Estevez's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gerardo Estevez reassigns Medicare benefits to 3 organizations: Saint Peter's Healthcare System Physician Associates (New Brunswick, NJ), Rwjbh Primary Care Services (West Orange, NJ) and Central Jersey Urgent Care (Ocean, 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 Gerardo Estevez's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Gerardo Estevez accept?

Health plans from Ambetter Health and Ambetter Health of Delaware list Gerardo Estevez 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 Gerardo Estevez affiliated with any hospitals?

According to CMS data, Gerardo Estevez is affiliated with Robert Wood Johnson University Hospital and Jfk Medical Center.

When was this NPI record last updated?

The NPPES record for Gerardo Estevez was last updated on April 11, 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.