Mark Jayanathan, M.D.
NPI 1861889842 · Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Danville, PA
Enrolled with Medicare as Practitioner - Thoracic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Jayanathan, M.D. is a Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician provider in Danville, PA (NPI 1861889842).
Provider details
- NPI number
- 1861889842
- Entity type
- Individual
- Primary specialty
- Thoracic Surgery (Cardiothoracic Vascular Surgery) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
11 yrs in NPPES registry
- Profile completeness25% of score
83% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
151 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 52 | $172 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 26 | $164 |
| Harvest of Vein Using an Endoscope33508 | 25 | $15 |
| Coronary Artery Bypass Using Artery Graft, 1 Graft33533 | 24 | $1,572 |
| Coronary Artery Bypass Using Vein Or Artery Graft, 2 Grafts33518 | 12 | $381 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 12 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,217 across 17 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2015-04-17
- Last updated
- 2023-10-23
- Certified
- 2023-10-23
Frequently asked questions
- What is Mark Jayanathan's NPI number?
- Mark Jayanathan's National Provider Identifier (NPI) is 1861889842, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Jayanathan's specialty?
- Mark Jayanathan is listed in the NPPES registry with a primary specialty of Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Jayanathan located?
- Mark Jayanathan's practice location on file with NPPES is 100 N Academy Ave, Danville, PA 17822-0816.
- What is Mark Jayanathan's phone number?
- The practice phone number listed in the NPPES registry for Mark Jayanathan is (570) 271-6367.
- Does Mark Jayanathan accept Medicare?
- Mark Jayanathan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Jayanathan's NPI active?
- Yes — Mark Jayanathan's NPI (1861889842) is active in the NPPES registry as of the last update on 2023-10-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.