Mark Hennon, MD
NPI 1124108998 · Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Buffalo, NY
Enrolled with Medicare as Practitioner - Thoracic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Hennon, MD is a Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician provider in Buffalo, NY (NPI 1124108998).
Provider details
- NPI number
- 1124108998
- Entity type
- Individual
- Primary specialty
- Thoracic Surgery (Cardiothoracic Vascular Surgery) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 256860 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
83 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 23 | $92 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 21 | $136 |
| Exam of Lung Airways and Sampling of Lymph Nodes Using an Endoscope and Ultrasound Guidance, 1-2 Lymph Nodes31652 | 13 | $173 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 13 | $126 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 13 | $59 |
Typical Medicare-allowed amounts for these services range $59–$173 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Additional practice locations (1)
- 9100 Babcock Blvd.Cancer Center Ground FloorPittsburgh, PA 15237Phone: (412) 748-5772Fax: (412) 748-3359
Registry dates
- Enumerated
- 2006-10-16
- Last updated
- 2022-02-24
- Certified
- 2022-02-24
Frequently asked questions
- What is Mark Hennon's NPI number?
- Mark Hennon's National Provider Identifier (NPI) is 1124108998, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Hennon's specialty?
- Mark Hennon is listed in the NPPES registry with a primary specialty of Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Hennon located?
- Mark Hennon's practice location on file with NPPES is Elm and Carlton St, Buffalo, NY 14263.
- What is Mark Hennon's phone number?
- The practice phone number listed in the NPPES registry for Mark Hennon is (716) 845-2300.
- Does Mark Hennon accept Medicare?
- Mark Hennon is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Hennon's NPI active?
- Yes — Mark Hennon's NPI (1124108998) is active in the NPPES registry as of the last update on 2022-02-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.