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DR. MATTHEW LANIER WILLIAMS MD
NPI 1679740005
Thoracic Surgery (Cardiothoracic Vascular Surgery) in New Haven, CT

Active since May 14, 2008PECOS EnrolledAccepts Medicare Assignment
73.56/100
CMS Quality Rating
330 CEDAR ST # BB204, NEW HAVEN, CT 06510(203) 785-5000(203) 785-3346 Get Directions Write a Review

NPPES record last updated: January 25, 2023. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jan 25, 2023, Oct 15, 2020 (2 updates tracked since 2020).

About Dr. Matthew Lanier Williams Md NPPES

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

DR. MATTHEW LANIER WILLIAMS MD (NPI 1679740005) is an individual thoracic surgery (cardiothoracic vascular surgery) provider in New Haven, Connecticut, licensed in Connecticut (69392) and active in the NPI registry since May 2008. He is enrolled in Medicare PECOS and is a graduate of Duke University School Of Medicine (1999).

NPPES Registry Identity

NPI1679740005
Entity TypeIndividualMale
Primary Taxonomy208G00000X
Provider Legal NameDR. MATTHEW LANIER WILLIAMSCredential: MD
Location Address330 CEDAR ST # BB204New Haven, CT 06510-3218
Mailing AddressPo Box 208039New Haven, CT 06520-8039 · (203) 785-3883
Phone(203) 785-5000
Fax(203) 785-3346
Sole ProprietorNo
Medical School CMSDuke University School Of MedicineGraduated 1999
Enumeration DateMay 14, 2008
Last NPPES UpdateJanuary 25, 20232 updates tracked since enumeration
NPPES CertifiedJanuary 9, 2023
✔ NPI 1679740005 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyThoracic Surgery (Cardiothoracic Vascular Surgery)Allopathic & Osteopathic Physicians
Taxonomy Code208G00000X
Licenses✔ Licensed in CT · 69392✔ Licensed in NC · 200300106✔ Licensed in PA · MD452931✔ Licensed in KY · TP771
Definition
A thoracic surgeon provides the operative, perioperative and critical care of patients with pathologic conditions within the chest. Included is the surgical care of coronary artery disease, cancers of the lung, esophagus and chest wall, abnormalities of the trachea, abnormalities of the great vessels and heart valves, congenital anomalies, tumors of the mediastinum and diseases of the diaphragm. The management of the airway and injuries of the chest is within the scope of the specialty.
330 CEDAR ST # BB204, New Haven, CT 06510
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Matthew Lanier Williams 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 ID3173678232
PECOS Enrollment IDI20211006001838
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.

Areas of Expertise CMS Part B claims 5

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.

New patient office or other outpatient visit with straightforward medical decision making, if using time, 15 minutes or more 99202
This service involves an initial visit to the doctor's office or other outpatient setting. It typically lasts between 15-29 minutes. The doctor will review your medical history, conduct a physical examination, and discuss your health concerns. It's a chance to establish your health baseline and address any immediate medical issues.
64 services64 patients
Replacement of aortic valve through the skin and femoral artery 33361
This procedure, known as Transcatheter Aortic Valve Replacement (TAVR), involves replacing a damaged aortic valve through a small incision in the leg. A catheter is inserted into the femoral artery and guided up to the heart. The new valve is then positioned and deployed, restoring normal blood flow.
58 services58 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.
31 services31 patients
Replacement of aortic valve on heart-lung machine 33405
The aortic valve replacement on a heart-lung machine is a procedure where your faulty aortic valve is replaced with a new one. During this operation, a machine takes over the job of your heart and lungs, ensuring the blood supply to your body is maintained.
14 services14 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.
13 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 06510 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
$183.10 typical visit price
range $60.82 – $183.10
Typical copayment $45.77 (range $15.20 – $45.77)
Most-billed visit code 99205
Established Patient
$75.55 typical visit price
range $19.76 – $149.26
Typical copayment $18.88 (range $4.94 – $37.31)
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.

73.56/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality75.84
Promoting Interoperability74
Improvement Activities40
Cost51.43

Other Providers at the Same Location NPPES

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

MICHAEL L DEWAR MD
Thoracic Surgery (Cardiothoracic Vascular Surgery)
330 CEDAR ST # BB204
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 785-6253

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 Matthew Williams's NPI number?

The NPI number for Matthew Williams is 1679740005. It was assigned to this individual provider in the NPPES registry on May 14, 2008.

Where is Matthew Williams located?

Matthew Williams practices at 330 Cedar St # Bb204, New Haven, CT 06510. The listed phone number is (203) 785-5000.

What is Matthew Williams's specialty?

The primary specialty registered for this NPI is Thoracic Surgery (Cardiothoracic Vascular Surgery) with taxonomy code 208G00000X.

Is Matthew Williams enrolled in Medicare?

Yes. Matthew 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.

When was this NPI record last updated?

The NPPES record for Matthew Williams was last updated on January 25, 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.