Dr. Gajan Jeganathan, DO
- Medicare services, 2024
- 228
- Medicare patients, 2024
- 225
- Part D claims, 2019
- 12
- Publications
- 2
- Hospital affiliations
- 2
- Practice address
- 10800 Knights Road, Philadelphia, PA 19114
- Practice phone
- Call (215) 612-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Jeganathan's professional email, personal email and mobile number
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Dr. Gajan Jeganathan is an internist in Philadelphia, Pennsylvania
Dr. Jeganathan practices at Jefferson Torresdale Hospital in Philadelphia, Pennsylvania, part of Thomas Jefferson University.
Dr. Jeganathan's NPI, 1942681184, was assigned on June 13, 2015. Dr. Jeganathan holds Pennsylvania license OS019355.
- NPI
- 1942681184NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9436446952
- NPI enumeration date
- June 13, 2015
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (215) 612-4000
- 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. Gajan Jeganathan practices at Jefferson Torresdale Hospital in Philadelphia, Pennsylvania
Dr. Jeganathan's primary practice is Jefferson Torresdale Hospital, at 10800 Knights Road, Philadelphia, PA 19114 in Philadelphia County. The practice phone is (215) 612-4000.
- Jefferson Torresdale Hospital10800 Knights Road, Philadelphia, PA 19114 · Philadelphia CountyPhone(215) 612-4000
Source: Dmand AI Affiliation Data
Dr. Gajan Jeganathan is affiliated with 5 sites of care and 4 medical groups
Dr. Jeganathan's primary practice is Jefferson Torresdale Hospital in Philadelphia, Pennsylvania, part of Thomas Jefferson University. Dr. Jeganathan is also affiliated with Doylestown Hospital. The medical group on file is Trinity Health Mid-Atlantic Medical Group. Dmand AI also links Dr. Jeganathan to 3 more group practices and clinics and 3 medical groups, 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. Gajan Jeganathan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Jeganathan practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Jefferson Torresdale Hospital | Available with a free account |
| +4 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dmand AI maps EHR vendors, IT decision makers and buying committees across Thomas Jefferson University and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Gajan Jeganathan is one of 5,665 internists in Pennsylvania
Internal medicine is Dr. Jeganathan's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Jeganathan is licensed in Pennsylvania.
Specialties and state licenses
- Internal medicine, PennsylvaniaPrimary
Internists near Dr. Jeganathan
Counts of internists 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. Gajan Jeganathan billed Medicare for 228 services in 2024
CMS data shows 228 Medicare services from Dr. Jeganathan across 2 procedure codes in 2024, for 225 Medicare patients. Medicare paid $27,285 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Jeganathan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3572024: 22836%
Dr. Jeganathan compared with the Pennsylvania median for internists, 2024
- Dr. Jeganathan
- Pennsylvania median
- Medicare services
- 228vs 41745% below
- Medicare patients
- 225vs 18522% above
- Part D claims
- 12vs 22495% below
Medians across 5,518 internists in Pennsylvania with Dmand AI profiles that report each measure.
Dr. Jeganathan'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.
Need commercial claims for Dr. Jeganathan?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Jeganathan and other internists in Pennsylvania.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gajan Jeganathan treated 225 Medicare patients in 2024, average age 77
CMS counts 225 Medicare patients who saw Dr. Jeganathan in 2024. The largest group is 75 to 84, with 69 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 32% are also on Medicaid. Their average risk score is 2.76, 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. Jeganathan's median patient age at 67, with 53% women.
Dr. Jeganathan's Medicare patients by age, 2024
Dr. Jeganathan's Medicare patients by sex, 2024
- Women12756%
- Men9844%
Chronic conditions among Dr. Jeganathan's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease60%
- Chronic kidney disease57%
- Mood disorders57%
- Anxiety54%
- Arthritis54%
- Depression52%
Share of Medicare patients with each condition. A patient can have several.
Dr. Jeganathan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women53%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Gajan Jeganathan wrote 12 Medicare Part D claims in 2019
In 2019, Dr. Jeganathan wrote 12 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $2,624 in total drug cost. In 2018, CMS named 358 claims across 18 drugs.
Dr. Jeganathan's most prescribed drugs by claims, 2019
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, 2018 to 2019
- 2018
- 2019
- Claims for drugs CMS names
- 2018: 3582019: 1297%
Drugs named by CMS: 1 in 2019, 18 in 2018.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
How Dr. Gajan Jeganathan takes part in Medicare
Dr. Jeganathan accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Gajan Jeganathan has 2 publications on record
Dmand AI links 2 papers to Dr. Jeganathan, published from 2012 to 2013. Dr. Jeganathan's most frequent co-authors are Tulin Budak-Alpdogan, MD and Roger K. Strair, MD.
Dr. Jeganathan's most frequent co-authors
Recent publications by Dr. Jeganathan
Bone Marrow Transplant
See who Dr. Jeganathan researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Jeganathan works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Gajan Jeganathan received $149 in industry payments from 2017 to 2020
CMS Open Payments shows 3 general payments to Dr. Jeganathan from 2 drug and device companies from 2017 to 2020. Food and beverage make up the largest share, 100% of the total. Bristol-Myers Squibb Company paid the most, $122.
General payments to Dr. Jeganathan by program year, 2017 to 2020
Companies that paid Dr. Jeganathan the most, 2017 to 2020
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Gajan Jeganathan'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) |
| 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) |
| 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. Gajan Jeganathan
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. Gajan Jeganathan's NPI number?
Dr. Gajan Jeganathan's NPI number is 1942681184. It was assigned on June 13, 2015, and it is active in the NPI Registry.
What kind of doctor is Dr. Gajan Jeganathan?
Dr. Gajan Jeganathan is an internist in Philadelphia, Pennsylvania. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Gajan Jeganathan practice?
Dr. Jeganathan practices at 10800 Knights Road, Philadelphia, PA 19114. Dr. Jeganathan's primary practice is Jefferson Torresdale Hospital in Philadelphia, Pennsylvania, part of Thomas Jefferson University. Dmand AI also links Dr. Jeganathan to 3 group practices and clinics and 3 medical groups.
What is Dr. Gajan Jeganathan's office phone number?
The practice phone on file for Dr. Jeganathan is (215) 612-4000.
What is Dr. Gajan Jeganathan's medical license number?
Dr. Jeganathan holds Pennsylvania license OS019355.
Which hospitals is Dr. Gajan Jeganathan affiliated with?
Dr. Jeganathan practices at Jefferson Torresdale Hospital in Philadelphia, Pennsylvania. Dr. Jeganathan is also affiliated with Doylestown Hospital.
What medical group is Dr. Gajan Jeganathan part of?
Dr. Jeganathan is linked to Trinity Health Mid-Atlantic Medical Group. Dmand AI links Dr. Jeganathan to 3 more medical groups.
Does Dr. Gajan Jeganathan accept Medicare?
Yes. CMS data shows Dr. Jeganathan billed Medicare for 228 services in 2024, and Dr. Jeganathan accepts Medicare assignment.
How many Medicare patients does Dr. Gajan Jeganathan see?
CMS counts 225 Medicare patients who saw Dr. Jeganathan in 2024, with an average age of 77.
What services does Dr. Gajan Jeganathan bill to Medicare?
In 2024, Dr. Jeganathan's most billed Medicare services were hospital inpatient care (99223) and hospital inpatient care (99222).
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What drugs does Dr. Gajan Jeganathan prescribe most?
In 2019 Medicare Part D data, Dr. Jeganathan's most prescribed drugs by claims were Donepezil HCl.
Has Dr. Gajan Jeganathan received payments from drug or device companies?
CMS Open Payments shows $149 in general payments to Dr. Jeganathan from 2 companies from 2017 to 2020. The largest total came from Bristol-Myers Squibb Company.
How long has Dr. Gajan Jeganathan been practicing?
Dr. Jeganathan graduated from medical school in 2015, 11 years ago.
Does Dr. Gajan Jeganathan do research?
Dmand AI links 2 publications to Dr. Jeganathan, published from 2012 to 2013.
Who does Dr. Gajan Jeganathan publish with?
Dr. Jeganathan's most frequent co-authors are Tulin Budak-Alpdogan, MD (1 shared paper) and Roger K. Strair, MD (1 shared paper).
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