DR. JEFFREY F WILLIAMS M.D.
NPI 1225007438
Urology in Glen Ridge, NJ

Q: What is Jeffrey Williams's NPI number?

The NPI number for Jeffrey Williams is 1225007438. It was assigned to this individual provider in the NPPES registry on March 17, 2006.

Q: What is Jeffrey Williams'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 Jeffrey Williams was last updated on March 10, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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 17, 2006PECOS EnrolledAccepts Medicare Assignment

311 BAY AVE STE 200, GLEN RIDGE, NJ 07028(973) 429-0462(973) 429-8765 Get Directions Write a Review

NPPES record last updated: March 10, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Mar 10, 2022, Jun 30, 2021, May 16, 2019 and 1 more (4 updates tracked since 2019).

On this page

About Dr. Jeffrey F Williams M.d. NPPES

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

DR. JEFFREY F WILLIAMS M.D. (NPI 1225007438) is an individual urology provider in Glen Ridge, New Jersey, licensed in New Jersey (25MA07281700) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS, is affiliated with Clara Maass Medical Center, and maintains a secondary practice location in Verona.

NPPES Registry Identity

NPI1225007438

Entity TypeIndividualMale

Primary Taxonomy208800000X

Provider Legal NameDR. JEFFREY F WILLIAMSCredential: M.D.

Location Address311 BAY AVE STE 200Glen Ridge, NJ 07028-1621

Mailing Address1 Diamond Hill RdBerkeley Heights, NJ 07922-2104 · (908) 273-4300

Phone(973) 429-0462

Fax(973) 429-8765

Sole ProprietorNo

Medical School CMSRutgers R W Johnson Medical School (cam/new Bruns/pisc)Graduated 1995

Enumeration DateMarch 17, 2006

Last NPPES UpdateMarch 10, 20224 updates tracked since enumeration

NPPES CertifiedMarch 10, 2022

✔ NPI 1225007438 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyUrologyAllopathic & Osteopathic Physicians

Taxonomy Code208800000X

Licenses✔ Licensed in NJ · 25MA07281700✔ Licensed in NJ · MA07281700

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.

311 BAY AVE STE 200, Glen Ridge, NJ 07028

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Secondary Practice Location 1

Location 1799 Bloomfield Ave Ste 300Verona, NJ 07044-1301 · Phone (973) 429-0462 · Fax (973) 429-8765

Other Identifiers 1

Medicaid8577307NJ

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. Jeffrey F Williams M.d. 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 ID2961427968

PECOS Enrollment IDI20051010000223

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

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

New Jersey Urology LLC

2.2 mi

Urology

1515 BROAD ST, SUITE B130
Bloomfield, NJ 07003

Reassigned Medicare billing, New Jersey enrollment
144 clinicians in this Medicare group

NPI 1588822423 (973) 873-7000

Summit Medical Group PA

14 mi

Multi-Specialty

1 DIAMOND HILL RD, SUMMIT MEDICAL GROUP
Berkeley Heights, NJ 07922

Reassigned Medicare billing, New Jersey enrollment
1,184 clinicians in this Medicare group

NPI 1942254347 (908) 273-4300

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 20

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.

Automated urinalysis test 81003

An automated urinalysis test is a routine examination that checks your urine for various substances. It can help identify potential health issues such as kidney problems or diabetes. The test uses a machine to analyze a small urine sample, providing quick and accurate results.

519 services348 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.

297 services234 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.

168 services137 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.

79 services72 patients

Insertion of needle into vein for collection of blood sample 36415

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

72 services59 patients

Limited ultrasound scan behind abdominal cavity 76775

A limited ultrasound scan behind the abdominal cavity is a non-invasive imaging method that helps visualize structures in the back of your abdomen. This procedure uses sound waves to create pictures of these areas, assisting in diagnosing certain conditions.

61 services57 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.

54 services54 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.

53 services39 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.

47 services47 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.

40 services32 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.

37 services36 patients

Bacterial colony count, urine 87086

A bacterial colony count, urine, is a laboratory test that checks a urine sample for bacteria. It helps to identify if an infection is present in the urinary system. High numbers of bacteria in the urine can indicate a urinary tract infection (UTI).

27 services22 patients

Bacterial urine culture 87088

A bacterial urine culture is a laboratory test that checks for bacteria in your urine. It helps identify the type of bacteria causing an infection, enabling the selection of the most effective treatment. The test involves collecting a urine sample in a sterile container.

27 services22 patients

Psa (prostate specific antigen) measurement, total 84153

PSA measurement is a simple blood test that checks for a specific protein produced by your body. High levels could indicate a health issue that needs further investigation. It's often used to monitor general wellness and is part of routine health screening.

26 services25 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

23 services20 patients

Bacterial culture for aerobic isolates 87077

A bacterial culture for aerobic isolates is a lab test that helps identify bacteria that thrive in oxygen-rich environments. A sample from the suspected infection site is collected, then placed in a special medium that promotes bacterial growth. After a set period, the lab identifies any bacteria present, aiding in accurate diagnosis and treatment.

15 services15 patients

Evaluation of antimicrobial drug (antibiotic, antifungal, antiviral), microdilution or agar dilution 87186

This process checks how well certain drugs, like antibiotics, can fight against infections. It involves mixing the drug with a microbe (like bacteria or a virus) in a lab. By observing how the microbe reacts, it helps determine the best drug to treat your infection.

15 services15 patients

Complete ultrasound scan behind abdominal cavity 76770

A complete ultrasound scan behind the abdominal cavity is a non-invasive imaging procedure. It uses sound waves to create pictures of the structures and organs located at the back of your abdomen. It helps in diagnosing health conditions and monitoring ongoing treatments.

12 services12 patients

Biopsy of prostate gland 55700

A biopsy of the prostate gland is a procedure where a small sample of tissue is taken from your body's internal gland, located near the bladder, for testing. This helps in diagnosing potential health issues. It's usually done with a fine needle and imaging technology for accuracy.

11 services11 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.

11 services11 patients

Hospital Affiliations CMS Care Compare 2

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

Clara Maass Medical Center

Acute Care Hospitals · Belleville, NJ

1/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number310009

LocationOne Clara Maass DriveBelleville, NJ 07109 · Essex County

Emergency services Birthing friendly

Hackensack Meridian Health, Mountainside Medical

Acute Care Hospitals · Montclair, NJ

2/5 CMS rating

OwnershipProprietary

CMS Certification Number310054

Location1 Bay AvenueMontclair, NJ 07042 · Essex County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 07028 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.

Referred Medical Equipment & Supplies CMS DME claims

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

Intermittent urinary catheter; straight tip, with or without coating (teflon, silicone, silicone elastomer, or hydrophilic, etc.), each A4351

DME-Orthotic Devices · category DF008N

2 suppliers15 claims2,250 services$1.63 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 3

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

DR. JAMES SAIDI M.D.

Urology

311 BAY AVE STE 200
GLEN RIDGE, NJ 07028

Essex County (973) 429-0462

MARYERLL SOCORRO TEVES APN

Nurse Practitioner

311 BAY AVE STE 200
GLEN RIDGE, NJ 07028

Essex County (973) 577-2883

DR. KONSTANTIN WALMSLEY M.D.

Urology

311 BAY AVE STE 200
GLEN RIDGE, NJ 07028

Essex County (973) 429-0462

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 Jeffrey Williams's NPI number?

The NPI number for Jeffrey Williams is 1225007438. It was assigned to this individual provider in the NPPES registry on March 17, 2006.

Where is Jeffrey Williams located?

Jeffrey Williams practices at 311 Bay Ave Ste 200, Glen Ridge, NJ 07028. The listed phone number is (973) 429-0462.

What is Jeffrey Williams's specialty?

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

Is Jeffrey Williams enrolled in Medicare?

Yes. Jeffrey Williams 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 Jeffrey Williams's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Jeffrey Williams reassigns Medicare benefits to 2 organizations: New Jersey Urology LLC (Bloomfield, NJ) and Summit Medical Group PA (Berkeley Heights, 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 Jeffrey Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Jeffrey Williams affiliated with any hospitals?

According to CMS data, Jeffrey Williams is affiliated with Clara Maass Medical Center and Hackensack Meridian Health, Mountainside Medical.

When was this NPI record last updated?

The NPPES record for Jeffrey Williams was last updated on March 10, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.