GREGORY R MULLEN MD
NPI 1689105504
Urology in Livingston, NJ

Q: What is Gregory Mullen's NPI number?

The NPI number for Gregory Mullen is 1689105504. It was assigned to this individual provider in the NPPES registry on March 22, 2017.

Q: What is Gregory Mullen's specialty?

The primary specialty registered for this NPI is Urology with taxonomy code 208800000X.

Q: When was this NPI record last updated?

The NPPES record for Gregory Mullen was last updated on August 3, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.

Active since March 22, 2017PECOS EnrolledAccepts Medicare Assignment

93.71/100

CMS Quality Rating

200 S ORANGE AVE STE 228, LIVINGSTON, NJ 07039(212) 241-6500 Get Directions Write a Review

NPPES record last updated: August 3, 2023. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: May 31, 2023, Mar 22, 2017 (2 updates tracked since 2017).

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About Gregory R Mullen Md NPPES

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

GREGORY R MULLEN MD (NPI 1689105504) is an individual urology provider in Livingston, New Jersey, licensed in New Jersey (25MA11814000) and active in the NPI registry since March 2017. He is enrolled in Medicare PECOS, is affiliated with Newark Beth Israel Medical Center, and is a graduate of Drexel University College Of Medicine (2017).

NPPES Registry Identity

NPI1689105504

Entity TypeIndividualMale

Primary Taxonomy208800000X

Provider Legal NameGREGORY R MULLENCredential: MD

Location Address200 S ORANGE AVE STE 228Livingston, NJ 07039-5817

Mailing Address200 S Orange Ave Ste 228Livingston, NJ 07039-5817

Phone(212) 241-6500

Sole ProprietorYes

Medical School CMSDrexel University College Of MedicineGraduated 2017

Enumeration DateMarch 22, 2017

Last NPPES UpdateAugust 3, 20232 updates tracked since enumeration

NPPES CertifiedAugust 3, 2023

✔ NPI 1689105504 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyUrologyAllopathic & Osteopathic Physicians

Taxonomy Code208800000X

Licenses✔ Licensed in NJ · 25MA11814000✔ Licensed in NY · 312602

Definition

A urologist manages benign and malignant medical and surgical disorders of the genitourinary system and the adrenal gland. This specialist has comprehensive knowledge of and skills in endoscopic, percutaneous and open surgery of congenital and acquired conditions of the urinary and reproductive systems and their contiguous structures.

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

200 S ORANGE AVE STE 228, Livingston, NJ 07039

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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, Oscar Health.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

Gregory R Mullen 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 ID6709123326

PECOS Enrollment IDI20230615003665

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 Gregory Mullen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Barnabas Health Medical Group PC

11 mi

Specialist

225 WILLIAMSON ST
Elizabeth, NJ 07202

Reassigned Medicare billing, New Jersey enrollment
1,894 clinicians in this Medicare group

NPI 1841557246 (888) 724-7123

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 19

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 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.

336 services195 patients

Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231

Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.

242 services149 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

179 services179 patients

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.

172 services131 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

125 services118 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

100 services69 patients

Ultrasound measurement of bladder capacity after voiding 51798

Ultrasound measurement of bladder capacity after voiding is a non-invasive test that uses sound waves to create images of your bladder. It's done after you've emptied your bladder to see if there's any leftover urine, which can help diagnose certain conditions.

85 services68 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

75 services75 patients

Imaging of urinary tract following injection of a contrast agent 74420

This procedure involves injecting a contrast agent into your body to help highlight the urinary tract during imaging. The contrast agent makes your urinary tract more visible on the images, providing detailed information about its structure and function. This can help in diagnosing any potential issues.

70 services50 patients

Complicated removal of foreign body, stone, or stent in urethra or bladder using an endoscope 52315

This is a procedure where an instrument called an endoscope is used to remove an object, stone, or a small tube known as a stent from the bladder or urinary passage. The endoscope allows the process to be done without any large incisions, promoting a quicker recovery.

64 services64 patients

Simple insertion of temporary bladder tube 51702

This procedure involves placing a temporary tube into your bladder to help with urine flow. It's done when the body can't naturally remove urine. The tube is inserted through a small opening and allows urine to drain into a bag. It's usually a short-term solution.

46 services23 patients

Electronic assessment of bladder emptying 51741

Electronic assessment of bladder emptying is a non-invasive test that measures how well your bladder functions. It uses ultrasound technology to create images of your bladder before and after you use the restroom, helping to identify any issues with bladder emptying.

38 services32 patients

Diagnostic exam of bladder and urethra using an endoscope 52000

This procedure involves using a thin, flexible tube with a light, called an endoscope, to examine the bladder and urethra. It helps in identifying any abnormalities or issues that may be causing discomfort or other symptoms.

33 services32 patients

Insertion of stent in ureter using an endoscope 52332

This procedure involves placing a small, flexible tube (stent) in your body's drainage system to help urine flow from the kidneys to the bladder. An endoscope, a thin tube with a light and camera, is used for precise placement.

30 services24 patients

Crushing of stone of ureter with insertion of stent using an endoscope 52356

This procedure involves using a thin, flexible tube (endoscope) to locate and break down kidney stones in the ureter. After this, a small tube (stent) is inserted to help maintain an open pathway for urine to flow.

23 services21 patients

Telephone medical discussion with physician, 5-10 minutes 99441

A telephone medical discussion with a physician is a brief, 5-10 minute call where you can discuss your health concerns. It's a convenient way to receive medical advice without needing to visit a clinic. It's important to prepare questions in advance to make the most of this time.

17 services17 patients

Ultrasound scan of pelvic region through rectum 76872

An ultrasound scan of the pelvic region through the rectum is a medical procedure where a small, smooth device is gently inserted into the rectum. This device uses sound waves to create images of the internal structures in the lower abdomen, aiding in diagnosis and treatment planning.

14 services14 patients

Removal or manipulation of stone in ureter or kidney using an endoscope 52352

This procedure involves using a thin, flexible instrument called an endoscope to locate and remove or break down stones in the urinary tract. It's a non-invasive method that helps to alleviate discomfort and improve urinary function.

13 services13 patients

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

11 services11 patients

Hospital Affiliations CMS Care Compare 3

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

Newark Beth Israel Medical Center

Acute Care Hospitals · Newark, NJ

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number310002

Location201 Lyons AveNewark, NJ 07112 · Essex County

Emergency services Birthing friendly

Cooperman Barnabas Medical Center

Acute Care Hospitals · Livingston, NJ

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number310076

Location94 Old Short Hills RoadLivingston, NJ 07039 · Essex County

Emergency services Birthing friendly

The University Hospital

Acute Care Hospitals · Newark, NJ

1/5 CMS rating

OwnershipGovernment - State

CMS Certification Number310119

Location150 Bergen StNewark, NJ 07103 · Essex County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 07039 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

$79.09 typical visit price

range $20.97 – $155.92

Typical copayment $19.77 (range $5.24 – $38.98)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

93.71/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored through an Alternative Payment Model

Quality

77.79

Promoting Interoperability

100

Improvement Activities

Other Providers at the Same Location NPPES 3

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

MRS. ELIZABETH VOCATURO-CHELCHOWSKI MSN, FNP-C, RN, CWON

Nurse Practitioner (Family)

200 S ORANGE AVE STE 228
LIVINGSTON, NJ 07039

Essex County (973) 322-0133

LILY RYAN DIMARTINO PA-C

Physician Assistant

200 S ORANGE AVE STE 228
LIVINGSTON, NJ 07039

Essex County (973) 322-0133

DR. ARI PHILLIP BERNSTEIN MD

Urology

200 S ORANGE AVE STE 228
LIVINGSTON, NJ 07039

Essex County (973) 322-0133

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 Gregory Mullen's NPI number?

The NPI number for Gregory Mullen is 1689105504. It was assigned to this individual provider in the NPPES registry on March 22, 2017.

Where is Gregory Mullen located?

Gregory Mullen practices at 200 S Orange Ave Ste 228, Livingston, NJ 07039. The listed phone number is (212) 241-6500.

What is Gregory Mullen's specialty?

The primary specialty registered for this NPI is Urology with taxonomy code 208800000X.

Is Gregory Mullen enrolled in Medicare?

Yes. Gregory Mullen 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 organization bills Medicare for Gregory Mullen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Mullen reassigns Medicare benefits to Barnabas Health Medical Group PC (Elizabeth, NJ). 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 Gregory Mullen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Gregory Mullen accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Oscar Health list Gregory Mullen 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 Gregory Mullen affiliated with any hospitals?

According to CMS data, Gregory Mullen is affiliated with Newark Beth Israel Medical Center, Cooperman Barnabas Medical Center and The University Hospital.

When was this NPI record last updated?

The NPPES record for Gregory Mullen was last updated on August 3, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.