Dr. Mark Jayanathan, MD
- Medicare services, 2024
- 151
- Medicare patients, 2024
- 133
- Part D claims, 2020
- 12
- Hospital affiliations
- 4
- Industry payments
- $5,932
- Practice address
- 100 North Academy Avenue, Danville, PA 17822
- Practice phone
- Call (570) 271-6211
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Jayanathan'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. Mark Jayanathan is a cardiothoracic surgeon in Danville, Pennsylvania
Dr. Jayanathan practices at Geisinger Medical Center in Danville, Pennsylvania, part of Risant Health.
Dr. Jayanathan's NPI, 1861889842, was assigned on April 17, 2015. Dr. Jayanathan holds Pennsylvania license MD481937.
- NPI
- 1861889842NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4880901214
- NPI enumeration date
- April 17, 2015
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (570) 271-6211
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 37
- Medical school graduation
- 2015
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark Jayanathan practices at Geisinger Medical Center in Danville, Pennsylvania
Dr. Jayanathan's primary practice is Geisinger Medical Center, at 100 North Academy Avenue, Danville, PA 17822 in Montour County. The practice phone is (570) 271-6211.
- Geisinger Medical Center100 North Academy Avenue, Danville, PA 17822 · Montour CountyPhone(570) 271-6211
Source: Dmand AI Affiliation Data
Dr. Mark Jayanathan is affiliated with 4 sites of care and 2 medical groups
Dr. Jayanathan's primary practice is Geisinger Medical Center in Danville, Pennsylvania, part of Risant Health. Dr. Jayanathan is also affiliated with Lehigh Valley Hospital-Schuylkill S. Jackson Street. The medical group on file is Geisinger. Dmand AI also links Dr. Jayanathan to 2 more hospitals and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Mark Jayanathan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Jayanathan practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Geisinger Medical Center | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mark Jayanathan is one of 288 cardiothoracic surgeons in Pennsylvania
Thoracic surgery (cardiothoracic vascular surgery) is Dr. Jayanathan's primary specialty in the NPI Registry, under taxonomy code 208G00000X. Dr. Jayanathan is licensed in Pennsylvania.
Specialties and state licenses
- Thoracic surgery (cardiothoracic vascular surgery), PennsylvaniaPrimary
Cardiothoracic surgeons near Dr. Jayanathan
Counts of cardiothoracic surgeons with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Mark Jayanathan billed Medicare for 151 services in 2024
CMS data shows 151 Medicare services from Dr. Jayanathan across 6 procedure codes in 2024, for 133 Medicare patients. Medicare paid $45,513 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Jayanathan's Medicare services by type, 2024
- Office and hospital visits90
- Surgery61
Dr. Jayanathan compared with the Pennsylvania median for cardiothoracic surgeons, 2024
- Dr. Jayanathan
- Pennsylvania median
- Medicare services
- 151vs 12026% above
- Medicare patients
- 133vs 11219% above
- Part D claims
- 12vs 2040% below
Medians across 242 cardiothoracic surgeons in Pennsylvania with Dmand AI profiles that report each measure.
Dr. Jayanathan'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mark Jayanathan treated 133 Medicare patients in 2024, average age 73
CMS counts 133 Medicare patients who saw Dr. Jayanathan in 2024. The largest group is 65 to 74, with 54 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 12% are also on Medicaid. Their average risk score is 1.74, 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. Jayanathan's median patient age at 70, with 30% women.
Dr. Jayanathan's Medicare patients by age, 2024
Dr. Jayanathan's Medicare patients by sex, 2024
- Women4836%
- Men8564%
Chronic conditions among Dr. Jayanathan's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease75%
- Heart failure59%
- Atrial fibrillation52%
- Diabetes47%
- Chronic kidney disease44%
- Arthritis33%
Share of Medicare patients with each condition. A patient can have several.
Dr. Jayanathan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women30%
- Men70%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mark Jayanathan wrote 12 Medicare Part D claims in 2020
In 2020, Dr. Jayanathan wrote 12 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $34 in total drug cost. In 2019, CMS named 20 claims across 1 drug.
Dr. Jayanathan's most prescribed drugs by claims, 2020
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2019 to 2020
- 2019
- 2020
- Claims for drugs CMS names
- 2019: 202020: 1240%
Drugs named by CMS: 1 in 2020, 1 in 2019.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
Dr. Mark Jayanathan ranks in the 75th percentile for coronary artery bypass graft (cabg) in Medicare
Dr. Jayanathan accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 24 procedures of coronary artery bypass graft (cabg) by Dr. Jayanathan, more than 75% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Jayanathan ranks in Medicare procedure volume
- Coronary artery bypass graft (CABG)
- 75th percentile24 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Mark Jayanathan received $5,932 in industry payments from 2021 to 2025
CMS Open Payments shows 48 general payments to Dr. Jayanathan from 14 drug and device companies from 2021 to 2025. Travel and lodging make up the largest share, 59% of the total. Abbott Laboratories paid the most, $1,968.
General payments to Dr. Jayanathan by program year, 2021 to 2025
General payments to Dr. Jayanathan by kind, 2021 to 2025
- Travel and lodging$3,52359%
- Food and beverage$2,31639%
- Education$932%
Companies that paid Dr. Jayanathan the most, 2021 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Mark Jayanathan'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) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Mark Jayanathan
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. Mark Jayanathan's NPI number?
Dr. Mark Jayanathan's NPI number is 1861889842. It was assigned on April 17, 2015, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark Jayanathan?
Dr. Mark Jayanathan is a cardiothoracic surgeon in Danville, Pennsylvania. The primary specialty in the NPI Registry is Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (taxonomy code 208G00000X).
Where does Dr. Mark Jayanathan practice?
Dr. Jayanathan practices at 100 North Academy Avenue, Danville, PA 17822. Dr. Jayanathan's primary practice is Geisinger Medical Center in Danville, Pennsylvania, part of Risant Health. Dmand AI also links Dr. Jayanathan to 2 hospitals and 1 medical group.
What is Dr. Mark Jayanathan's office phone number?
The practice phone on file for Dr. Jayanathan is (570) 271-6211.
What is Dr. Mark Jayanathan's medical license number?
Dr. Jayanathan holds Pennsylvania license MD481937.
Which hospitals is Dr. Mark Jayanathan affiliated with?
Dr. Jayanathan practices at Geisinger Medical Center in Danville, Pennsylvania. Dr. Jayanathan is also affiliated with Lehigh Valley Hospital-Schuylkill S. Jackson Street. Dmand AI links Dr. Jayanathan to 2 more hospitals.
What medical group is Dr. Mark Jayanathan part of?
Dr. Jayanathan is linked to Geisinger. Dmand AI links Dr. Jayanathan to 1 more medical group.
Does Dr. Mark Jayanathan accept Medicare?
Yes. CMS data shows Dr. Jayanathan billed Medicare for 151 services in 2024, and Dr. Jayanathan accepts Medicare assignment.
How many Medicare patients does Dr. Mark Jayanathan see?
CMS counts 133 Medicare patients who saw Dr. Jayanathan in 2024, with an average age of 73.
What services does Dr. Mark Jayanathan bill to Medicare?
In 2024, Dr. Jayanathan's most billed Medicare services were office visit, new patient (99205), hospital inpatient care (99223) and surgery: heart and blood vessels (33508).
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What drugs does Dr. Mark Jayanathan prescribe most?
In 2020 Medicare Part D data, Dr. Jayanathan's most prescribed drugs by claims were Oxycodone HCl.
Has Dr. Mark Jayanathan received payments from drug or device companies?
CMS Open Payments shows $5,932 in general payments to Dr. Jayanathan from 14 companies from 2021 to 2025. The largest total came from Abbott Laboratories.
How long has Dr. Mark Jayanathan been practicing?
Dr. Jayanathan graduated from medical school in 2015, 11 years ago.
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