1. Home
  2. Directory
  3. Rhode Island
  4. Warwick
  5. Orthopaedic Surgery
  6. NPI Profile

DR. WILLIAM F BRENNAN JR. M.D.
NPI 1114926185
Orthopaedic Surgery in Warwick, RI

Active since July 20, 2005PECOS EnrolledAccepts Medicare Assignment
120 CENTERVILLE RD, WARWICK, RI 02886(401) 738-3730(401) 738-3777 Get Directions Write a Review

NPPES record last updated: January 14, 2008. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. William F Brennan Jr. M.d. NPPES

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

DR. WILLIAM F BRENNAN JR. M.D. (NPI 1114926185) is an individual orthopaedic surgery provider in Warwick, Rhode Island, licensed in Rhode Island (MD8718) and active in the NPI registry since July 2005. He is enrolled in Medicare PECOS, is affiliated with Kent County Memorial Hospital, and is a graduate of Tufts University School Of Medicine (1988).

NPPES Registry Identity

NPI1114926185
Entity TypeIndividualMale
Primary Taxonomy207X00000X
Provider Legal NameDR. WILLIAM F BRENNAN JR.Credential: M.D.
Location Address120 CENTERVILLE RDWarwick, RI 02886-4336
Mailing Address120 Centerville RdWarwick, RI 02886-4336 · (401) 738-3730 · Fax (401) 738-3777
Phone(401) 738-3730
Fax(401) 738-3777
Sole ProprietorNo
Medical School CMSTufts University School Of MedicineGraduated 1988
Enumeration DateJuly 20, 2005
Last NPPES UpdateJanuary 14, 2008
✔ NPI 1114926185 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOrthopaedic SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code207X00000X
License✔ Licensed in RI · MD8718
Definition
An orthopaedic surgeon is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated structures by medical, surgical and physical means. An orthopaedic surgeon is involved with the care of patients whose musculoskeletal problems include congenital deformities, trauma, infections, tumors, metabolic disturbances of the musculoskeletal system, deformities, injuries and degenerative diseases of the spine, hands, feet, knee, hip, shoulder and elbow in children and adults. An orthopaedic surgeon is also concerned with primary and secondary muscular problems and the effects of central or peripheral nervous system lesions of the musculoskeletal system.
120 CENTERVILLE RD, Warwick, RI 02886
Open in Google Maps ↗

Other Identifiers 2

Medicare UPINF79640RI
Medicaid7004618RI

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. William F Brennan Jr. 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 ID3577636752
PECOS Enrollment IDI20100507000512
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 William Brennan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Orthopedics Rhode Island, Inc
Same address
Orthopaedic Surgery
120 CENTERVILLE ROAD
Warwick, RI 02886
  • Reassigned Medicare billing, Rhode Island enrollment
  • 115 clinicians in this Medicare group
NPI 1871049429 (401) 738-3730

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 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.
428 services215 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.
246 services147 patients
X-ray of lower and sacral spine, 2-3 views 72100
An X-ray of the lower and sacral spine involves capturing images of your lower back area, including the tailbone. This procedure helps in identifying problems like fractures, infections, or deformities. 2-3 different angle views provide a comprehensive picture.
101 services94 patients
Aspiration and/or injection of fluid from large joint 20610
This procedure involves using a needle to remove (aspiration) or introduce (injection) fluid into a large joint like the knee or hip. It can help diagnose conditions, relieve discomfort, or deliver medication directly to the joint.
64 services32 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
X-ray of upper spine, 2-3 views 72040
An X-ray of the upper spine, with 2-3 views, is a painless procedure that employs a small amount of radiation to capture images of your neck and upper back. It assists in diagnosing conditions like arthritis, fractures, or spinal deformities.
30 services29 patients

Hospital Affiliations CMS Care Compare

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

Kent County Memorial Hospital

Acute Care Hospitals · Warwick, RI
3/5 CMS rating
OwnershipProprietary
CMS Certification Number410009
Location455 Toll Gate RdWarwick, RI 02886 · Kent County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02886 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
$90.48 typical visit price
range $58.57 – $177.03
Typical copayment $22.62 (range $14.64 – $44.25)
Most-billed visit code 99203
Established Patient
$72.93 typical visit price
range $18.92 – $144.38
Typical copayment $18.23 (range $4.73 – $36.09)
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.

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. VAUGHN G GOODING JR. M.D.
Orthopaedic Surgery (Hand Surgery)
120 CENTERVILLE RD
WARWICK, RI 02886
Kent County (401) 738-3730
MS. ARLENE DENISE KAVANAGH PA-C
Physician Assistant (Surgical)
120 CENTERVILLE RD
WARWICK, RI 02886
Kent County (401) 738-3730
DR. MARIA A GUGLIELMO M.D.
Neurological Surgery
120 CENTERVILLE RD
WARWICK, RI 02886
Kent County (401) 738-3730
ELIZABETH ALBRO P.T.
Physical Therapist
120 CENTERVILLE RD
WARWICK, RI 02886
Kent County (401) 738-7347
DR. NORMAN A KORNWITZ M.D.
Orthopaedic Surgery
120 CENTERVILLE RD
WARWICK, RI 02886
Kent County (401) 738-3730
MS. HEIDI SMITH
Nurse Practitioner (Adult Health)
120 CENTERVILLE RD
WARWICK, RI 02886
Kent County (401) 562-1020
JEFFREY J. KOZLIK PT, DPT
Physical Therapist (Orthopedic)
120 CENTERVILLE RD, PHYSICAL THERAPY DEPARTMENT
WARWICK, RI 02886
Kent County (401) 738-7347
NATHAN DAVID HOWLETT D.O.
Orthopaedic Surgery (Sports Medicine)
120 CENTERVILLE RD
WARWICK, RI 02886
Kent County (401) 777-7000

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 William Brennan's NPI number?

The NPI number for William Brennan is 1114926185. It was assigned to this individual provider in the NPPES registry on July 20, 2005.

Where is William Brennan located?

William Brennan practices at 120 Centerville Rd, Warwick, RI 02886. The listed phone number is (401) 738-3730.

What is William Brennan's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.

Is William Brennan enrolled in Medicare?

Yes. William Brennan 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 William Brennan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), William Brennan reassigns Medicare benefits to Orthopedics Rhode Island, Inc (Warwick, RI). 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 William Brennan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is William Brennan affiliated with any hospitals?

According to CMS data, William Brennan is affiliated with Kent County Memorial Hospital.

When was this NPI record last updated?

The NPPES record for William Brennan was last updated on January 14, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.