Age DistributionAtrial FibrillationCatheter Ablation
Dr. Stephen W. Downing, MD
NPI1104861178PAC ID8628074051
- Medicare services, 2024
- 61
- Medicare patients, 2024
- 70
- Publications
- 1
- Hospital affiliations
- 2
- Industry payments
- $16,911
- Practice address
- 565 Abbott Road, Buffalo, NY 14220
- Practice phone
- Call (716) 826-7000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Downing's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Stephen W. Downing is a cardiothoracic surgeon in Buffalo, New York
Dr. Downing practices at Mercy Hospital of Buffalo in Buffalo, New York, part of Catholic Health System.
Dr. Downing's NPI, 1104861178, was assigned on June 16, 2006. Dr. Downing graduated from Georgetown University School of Medicine in 1987. Dr. Downing holds New York license 224769.
NPI and contact details
- NPI
- 1104861178NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8628074051
- NPI enumeration date
- June 16, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (716) 826-7000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 65
- Medical school graduation
- 1987
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Stephen W. Downing practices at Mercy Hospital of Buffalo in Buffalo, New York
Dr. Downing's primary practice is Mercy Hospital of Buffalo, at 565 Abbott Road, Buffalo, NY 14220 in Erie County. The practice phone is (716) 826-7000.
- Mercy Hospital of Buffalo565 Abbott Road, Buffalo, NY 14220 · Erie CountyPhone(716) 826-7000
Source: Dmand AI Affiliation Data
Dr. Stephen W. Downing is affiliated with 6 sites of care and 4 medical groups
Dr. Downing's primary practice is Mercy Hospital of Buffalo in Buffalo, New York, part of Catholic Health System. Dr. Downing is also affiliated with Kenmore Mercy Hospital. The medical group on file is Mercy Hospital of Buffalo. Dmand AI also links Dr. Downing to 3 more group practices and clinics, 3 medical groups and 1 home health agency, each named with a free account. Dr. Downing's employer is on file too: a hospital.
Kenmore Mercy HospitalMercy Hospital of Buffalo3 group practices and clinicsNames with a free account3 medical groupsNames with a free account1 home health agencyName with a free accountEmployer: hospitalName with a free account
See all 10 affiliations for Dr. DowningSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Stephen W. Downing's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Downing practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mercy Hospital of Buffalo | Available with a free account |
| +5 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Stephen W. Downing is one of 380 cardiothoracic surgeons in New York
Thoracic surgery (cardiothoracic vascular surgery) is Dr. Downing's primary specialty in the NPI Registry, under taxonomy code 208G00000X. Dr. Downing is licensed in New York.
Specialties and state licenses
- Thoracic surgery (cardiothoracic vascular surgery), New YorkPrimary
Cardiothoracic surgeons near Dr. Downing
Counts of cardiothoracic surgeons with a Dmand AI profile, by place and practice. Each opens the list.
380cardiothoracic surgeons in New York12cardiothoracic surgeons in Buffalo4cardiothoracic surgeons at Mercy Hospital of Buffalo
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Stephen W. Downing billed Medicare for 61 services in 2024
CMS data shows 61 Medicare services from Dr. Downing across 3 procedure codes in 2024, for 70 Medicare patients. Medicare paid $20,992 for them.
Medicare services, 202461
Medicare patients70
Paid by Medicare$20,992
Procedure codes3
Dr. Downing's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 162024: 48200%
- Surgery
- 2023: 152024: 1313%
Where Dr. Downing's Medicare services took place, 2024
- In an office4879%
- In a facility1321%
Dr. Downing compared with the New York median for cardiothoracic surgeons, 2024
- Dr. Downing
- New York median
- Medicare services
- 61vs 12049% below
- Medicare patients
- 70vs 9627% below
Medians across 326 cardiothoracic surgeons in New York with Dmand AI profiles that report each measure.
Dr. Downing's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Downing and other cardiothoracic surgeons in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Stephen W. Downing treated 70 Medicare patients in 2024, average age 75
CMS counts 70 Medicare patients who saw Dr. Downing in 2024. The largest group is 65 to 74, with 28 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 20% are also on Medicaid. Their average risk score is 2.05, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Downing's median patient age at 76, with 34% women.
Medicare patients, 202470
Average age75
Average risk score2.05
Also on Medicaid20%
Dr. Downing's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Downing's Medicare patients by sex, 2024
- Women2637%
- Men4463%
Chronic conditions among Dr. Downing's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease75%
- Heart failure63%
- Chronic kidney disease59%
- Arthritis57%
- Atrial fibrillation50%
- COPD41%
Share of Medicare patients with each condition. A patient can have several.
Dr. Downing's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 76
Patient panel by sex, all payers
- Women34%
- Men65%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Stephen W. Downing ranks in the 89th percentile for coronary artery bypass graft (cabg) in Medicare
Dr. Downing accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 36 procedures of coronary artery bypass graft (cabg) by Dr. Downing, more than 89% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Downing ranks in Medicare procedure volume
- Coronary artery bypass graft (CABG)
- 89th percentile36 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Stephen W. Downing has 1 publication on record
Dmand AI links 1 paper to Dr. Downing. Dr. Downing's most frequent co-authors are Kenneth A. Ellenbogen, MD, Thomas Edward Gaines, MD and Vigneshwar Kasirajan, MD.
Papers1
Dr. Downing's most frequent co-authors
- Kenneth A. Ellenbogen, MD1 shared paper
- Thomas Edward Gaines, MD1 shared paper
- Vigneshwar Kasirajan, MD1 shared paper
Recent publications by Dr. Downing
See who Dr. Downing researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Downing works with, so you can find a warm path to the right cardiothoracic surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Stephen W. Downing received $16,911 in industry payments from 2016 to 2025
CMS Open Payments shows 227 general payments to Dr. Downing from 15 drug and device companies from 2016 to 2025. Travel and lodging make up the largest share, 68% of the total. Edwards Lifesciences Corporation paid the most, $7,928.
General payments to Dr. Downing by program year, 2016 to 2025
General payments to Dr. Downing by kind, 2016 to 2025
$16.9Kin total
- Travel and lodging$11,43468%
- Food and beverage$5,43332%
- Education$430%
Companies that paid Dr. Downing the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Stephen W. Downing graduated from Georgetown University School of Medicine
Dr. Downing graduated from Georgetown University School of Medicine in 1987.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Stephen W. Downing's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Stephen W. Downing
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Stephen W. Downing's NPI number?
Dr. Stephen W. Downing's NPI number is 1104861178. It was assigned on June 16, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Stephen W. Downing?
Dr. Stephen W. Downing is a cardiothoracic surgeon in Buffalo, New York. The primary specialty in the NPI Registry is Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (taxonomy code 208G00000X).
Where does Dr. Stephen W. Downing practice?
Dr. Downing practices at 565 Abbott Road, Buffalo, NY 14220. Dr. Downing's primary practice is Mercy Hospital of Buffalo in Buffalo, New York, part of Catholic Health System. Dmand AI also links Dr. Downing to 3 group practices and clinics, 3 medical groups and 1 home health agency.
What is Dr. Stephen W. Downing's office phone number?
The practice phone on file for Dr. Downing is (716) 826-7000.
What is Dr. Stephen W. Downing's medical license number?
Dr. Downing holds New York license 224769.
Which hospitals is Dr. Stephen W. Downing affiliated with?
Dr. Downing practices at Mercy Hospital of Buffalo in Buffalo, New York. Dr. Downing is also affiliated with Kenmore Mercy Hospital.
What medical group is Dr. Stephen W. Downing part of?
Dr. Downing is linked to Mercy Hospital of Buffalo. Dmand AI links Dr. Downing to 3 more medical groups.
Does Dr. Stephen W. Downing accept Medicare?
Yes. CMS data shows Dr. Downing billed Medicare for 61 services in 2024, and Dr. Downing accepts Medicare assignment.
How many Medicare patients does Dr. Stephen W. Downing see?
CMS counts 70 Medicare patients who saw Dr. Downing in 2024, with an average age of 75.
What services does Dr. Stephen W. Downing bill to Medicare?
In 2024, Dr. Downing's most billed Medicare services were office visit, new patient (99204), office visit, new patient (99205) and surgery: heart and blood vessels (33533).
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Where did Dr. Stephen W. Downing go to medical school?
Dr. Downing graduated from Georgetown University School of Medicine in 1987.
Has Dr. Stephen W. Downing received payments from drug or device companies?
CMS Open Payments shows $16,911 in general payments to Dr. Downing from 15 companies from 2016 to 2025. The largest total came from Edwards Lifesciences Corporation.
How long has Dr. Stephen W. Downing been practicing?
Dr. Downing graduated from medical school in 1987, 39 years ago.
Does Dr. Stephen W. Downing do research?
Dmand AI links 1 publication to Dr. Downing.
Who does Dr. Stephen W. Downing publish with?
Dr. Downing's most frequent co-authors are Kenneth A. Ellenbogen, MD (1 shared paper), Thomas Edward Gaines, MD (1 shared paper) and Vigneshwar Kasirajan, MD (1 shared paper).
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