STEPHEN W DOWNING MD
NPI 1104861178
Thoracic Surgery (Cardiothoracic Vascular Surgery) in Buffalo, NY

Q: What is Stephen Downing's NPI number?

The NPI number for Stephen Downing is 1104861178. It was assigned to this individual provider in the NPPES registry on June 16, 2006.

Q: What is Stephen Downing's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Stephen Downing was last updated on August 23, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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 June 16, 2006PECOS EnrolledAccepts Medicare Assignment

515 ABBOTT RD, SUITE 310, BUFFALO, NY 14220(716) 923-9650(716) 961-4440 Get Directions Write a Review

NPPES record last updated: August 23, 2016. Verified against the NPPES registry weekly; last sync: November 01, 2026.

On this page

About Stephen W Downing Md NPPES

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

STEPHEN W DOWNING MD (NPI 1104861178) is an individual thoracic surgery (cardiothoracic vascular surgery) provider in Buffalo, New York, licensed in New York (224769) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with Mercy Hospital Of Buffalo, and is a graduate of Georgetown University School Of Medicine (1987).

NPPES Registry Identity

NPI1104861178

Entity TypeIndividualMale

Primary Taxonomy208G00000X

Provider Legal NameSTEPHEN W DOWNINGCredential: MD

Location Address515 ABBOTT RD, SUITE 310Buffalo, NY 14220-1700

Mailing Address515 Abbott Rd, Suite 310Buffalo, NY 14220-1700 · (716) 923-9650 · Fax (716) 961-4440

Phone(716) 923-9650

Fax(716) 961-4440

Sole ProprietorNo

Medical School CMSGeorgetown University School Of MedicineGraduated 1987

Enumeration DateJune 16, 2006

Last NPPES UpdateAugust 23, 2016

✔ NPI 1104861178 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

License✔ Licensed in NY · 224769

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.

515 ABBOTT RD, Buffalo, NY 14220

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Other Identifiers 1

Medicare UPING28363NY

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

Stephen W Downing 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 ID8628074051

PECOS Enrollment IDI20061009000097

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 Stephen Downing reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Mercy Hospital Of Buffalo

0.1 mi

Rehabilitation Unit

565 ABBOTT RD
Buffalo, NY 14220

Reassigned Medicare billing, New York enrollment
499 clinicians in this Medicare group

NPI 1659310605 (716) 826-7000

Trinity Medical Wny PC

4.0 mi

Internal Medicine

144 GENESSE STREET
Buffalo, NY 14203

Reassigned Medicare billing, New York enrollment
332 clinicians in this Medicare group

NPI 1295043149 (716) 206-1503

Sisters Of Charity Hospital Of Buffalo New York

4.8 mi

General Acute Care Hospital

2605 HARLEM RD
Cheektowaga, NY 14225

Reassigned Medicare billing, New York enrollment
515 clinicians in this Medicare group

NPI 1043455199 (716) 891-2400

Kenmore Mercy Hospital

9.5 mi

General Acute Care Hospital

2950 ELMWOOD AVE
Kenmore, NY 14217

Reassigned Medicare billing, New York enrollment
271 clinicians in this Medicare group

NPI 1770598104 (716) 447-6100

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 3

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 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.

24 services24 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

24 services24 patients

Coronary artery bypass using artery graft, 1 graft 33533

A coronary artery bypass with one artery graft is a surgical procedure to improve blood flow to your heart. An artery from another part of your body is used to bypass a blocked or narrowed coronary artery. This can help reduce chest pain and risk of heart attack.

13 services13 patients

Hospital Affiliations CMS Care Compare

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

Mercy Hospital Of Buffalo

Acute Care Hospitals · Buffalo, NY

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330279

Location565 Abbott RoadBuffalo, NY 14220 · Erie County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 14220 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

$166.88 typical visit price

range $54.87 – $166.88

Typical copayment $41.72 (range $13.71 – $41.72)

Most-billed visit code 99205

Established Patient

$68.57 typical visit price

range $17.54 – $136.14

Typical copayment $17.14 (range $4.38 – $34.03)

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.

BARBARA S STOUTER MD

Pediatrics

515 ABBOTT RD, SUITE 304
BUFFALO, NY 14220

Erie County (716) 995-8801

MS. MARCELLA ZYNDA NP

Nurse Practitioner

515 ABBOTT RD
BUFFALO, NY 14220

Erie County (716) 828-3724

SERRIE C. LICO MD, CARDIOVASCULAR & THORACIC SURGERY PC

Thoracic Surgery (Cardiothoracic Vascular Surgery)

515 ABBOTT RD, SUITE 101
BUFFALO, NY 14220

Erie County (716) 821-7714

DR. CHRISTOPHER R SPRINGER MD

Pediatrics

515 ABBOTT RD, SUITE 304
BUFFALO, NY 14220

Erie County (716) 995-8801

MICHAEL SANSANO JR MD PC

Ophthalmology

515 ABBOTT RD, SUITE 206
BUFFALO, NY 14220

Erie County (716) 828-3460

BRIAN DARCY MD

Internal Medicine (Cardiovascular Disease)

515 ABBOTT RD
BUFFALO, NY 14220

Erie County (716) 828-2068

DR. ANTHONY J BUSCAGLIA MD, FCCP

Internal Medicine (Pulmonary Disease)

515 ABBOTT RD, SUITE 102
BUFFALO, NY 14220

Erie County (716) 824-0266

MRS. MARCIA ANN WARNER RPH

Pharmacist

515 ABBOTT RD, SUITE 100
BUFFALO, NY 14220

Erie County (716) 823-7374

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 Stephen Downing's NPI number?

The NPI number for Stephen Downing is 1104861178. It was assigned to this individual provider in the NPPES registry on June 16, 2006.

Where is Stephen Downing located?

Stephen Downing practices at 515 Abbott Rd Suite 310, Buffalo, NY 14220. The listed phone number is (716) 923-9650.

What is Stephen Downing's specialty?

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

Is Stephen Downing enrolled in Medicare?

Yes. Stephen Downing 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 Stephen Downing's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Stephen Downing reassigns Medicare benefits to 4 organizations: Mercy Hospital Of Buffalo (Buffalo, NY), Trinity Medical Wny PC (Buffalo, NY), Sisters Of Charity Hospital Of Buffalo New York (Cheektowaga, NY) and Kenmore Mercy Hospital (Kenmore, NY). 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 Stephen Downing's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Stephen Downing affiliated with any hospitals?

According to CMS data, Stephen Downing is affiliated with Mercy Hospital Of Buffalo.

When was this NPI record last updated?

The NPPES record for Stephen Downing was last updated on August 23, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.