Dr. Daya Nadarajah, MD
- Medicare services, 2024
- 12,837
- Medicare patients, 2024
- 1,637
- Part D claims, 2024
- 19,694
- Hospital affiliations
- 5
- Industry payments
- $17,358
- Practice address
- 175 High St, Newton, NJ 07860
- Practice phone
- Call (973) 383-2121
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Nadarajah'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. Daya Nadarajah is an internist in Newton, New Jersey
Dr. Nadarajah practices at Newton Medical Center in Newton, New Jersey, part of Atlantic Health System.
Dr. Nadarajah's NPI, 1063492965, was assigned on January 18, 2006. Dr. Nadarajah holds New Jersey license 25MA04458000.
- NPI
- 1063492965NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0547365553
- NPI enumeration date
- January 18, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (973) 383-2121
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 70
- Medical school graduation
- 1982
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Daya Nadarajah practices at Newton Medical Center in Newton, New Jersey
Dr. Nadarajah's primary practice is Newton Medical Center, at 175 High St, Newton, NJ 07860 in Sussex County. The practice phone is (973) 383-2121.
- Newton Medical Center175 High St, Newton, NJ 07860 · Sussex CountyPhone(973) 383-2121
Source: Dmand AI Affiliation Data
Dr. Daya Nadarajah is affiliated with 11 sites of care and 1 medical group
Dr. Nadarajah's primary practice is Newton Medical Center in Newton, New Jersey, part of Atlantic Health System. Dr. Nadarajah is also affiliated with Morristown Medical Center. The medical group on file is Pulmonary Medical Associates. Dmand AI also links Dr. Nadarajah to 3 more hospitals, 2 home health agencies, 2 skilled nursing facilities, 1 group practice or clinic and 1 hospice, 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. Daya Nadarajah's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nadarajah practices, 11 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Newton Medical Center | Available with a free account |
| +10 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Daya Nadarajah is one of 4,226 internists in New Jersey
Internal medicine is Dr. Nadarajah's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Nadarajah is licensed in New Jersey.
Specialties and state licenses
- Internal medicine, New JerseyPrimary
Internists near Dr. Nadarajah
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. Daya Nadarajah billed Medicare for 12,837 services in 2024
CMS data shows 12,837 Medicare services from Dr. Nadarajah across 37 procedure codes in 2024, for 1,637 Medicare patients. Medicare paid $941,945 for them.
Dr. Nadarajah's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 13,6472024: 11,15118%
- Tests and treatments
- 2023: 9872024: 9593%
- Other services
- 2023: 5342024: 62216%
- Surgery
- 2023: 1052024: 105No change
Where Dr. Nadarajah's Medicare services took place, 2024
- In an office7,24156%
- In a facility5,59644%
Dr. Nadarajah compared with the New Jersey median for internists, 2024
- Dr. Nadarajah
- New Jersey median
- Medicare services
- 12,837vs 72317.8 times
- Medicare patients
- 1,637vs 2317.1 times
- Part D claims
- 18,567vs 83022.4 times
Medians across 4,086 internists in New Jersey with Dmand AI profiles that report each measure.
Dr. Nadarajah'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. Nadarajah and other internists in New Jersey.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Daya Nadarajah treated 1,637 Medicare patients in 2024, average age 75
CMS counts 1,637 Medicare patients who saw Dr. Nadarajah in 2024. The largest group is 75 to 84, with 608 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 20% are also on Medicaid. Their average risk score is 1.96, 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. Nadarajah's median patient age at 71, with 54% women.
Dr. Nadarajah's Medicare patients by age, 2024
Dr. Nadarajah's Medicare patients by sex, 2024
- Women89455%
- Men74345%
Chronic conditions among Dr. Nadarajah's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- COPD49%
- Ischemic heart disease49%
- Arthritis44%
- Diabetes41%
- Heart failure38%
- Anxiety37%
Share of Medicare patients with each condition. A patient can have several.
Dr. Nadarajah's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women54%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Daya Nadarajah wrote 19,694 Medicare Part D claims in 2024
In 2024, Dr. Nadarajah wrote 19,694 Medicare Part D claims for 1,267 patients. 77% of them were for generic drugs. CMS names the drug for 18,567 of them, across 232 drugs with 11 or more claims each, at $3,875,282 in total drug cost. In 2023, CMS named 20,460 claims across 244 drugs.
Dr. Nadarajah's Part D claims by kind of drug, 2024
- Generic15,133 claims77%
- Brand-name4,403 claims22%
- Other158 claims1%
Dr. Nadarajah's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Nadarajah's Part D claims, 2024
- Opioids1%137 of 19,694 claims
- Antibiotics4%879 of 19,694 claims
- Antipsychotics, patients 65 and over1%137 of 19,694 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 20,4602024: 18,5679%
Drugs named by CMS: 232 in 2024, 244 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Daya Nadarajah offers telehealth to Medicare patients
Dr. Nadarajah accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Nadarajah as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Daya Nadarajah received $17,358 in industry payments from 2016 to 2025
CMS Open Payments shows 894 general payments to Dr. Nadarajah from 64 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 95% of the total. AstraZeneca Pharmaceuticals LP paid the most, $3,551.
General payments to Dr. Nadarajah by program year, 2016 to 2025
General payments to Dr. Nadarajah by kind, 2016 to 2025
- Food and beverage$16,41695%
- Education$9435%
Companies that paid Dr. Nadarajah the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Daya Nadarajah'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)Medicare Part D Prescribers - 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) |
| 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. Daya Nadarajah
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. Daya Nadarajah's NPI number?
Dr. Daya Nadarajah's NPI number is 1063492965. It was assigned on January 18, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Daya Nadarajah?
Dr. Daya Nadarajah is an internist in Newton, New Jersey. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Daya Nadarajah practice?
Dr. Nadarajah practices at 175 High St, Newton, NJ 07860. Dr. Nadarajah's primary practice is Newton Medical Center in Newton, New Jersey, part of Atlantic Health System. Dmand AI also links Dr. Nadarajah to 3 hospitals, 2 home health agencies, 2 skilled nursing facilities, 1 group practice or clinic and 1 hospice.
What is Dr. Daya Nadarajah's office phone number?
The practice phone on file for Dr. Nadarajah is (973) 383-2121.
What is Dr. Daya Nadarajah's medical license number?
Dr. Nadarajah holds New Jersey license 25MA04458000.
Which hospitals is Dr. Daya Nadarajah affiliated with?
Dr. Nadarajah practices at Newton Medical Center in Newton, New Jersey. Dr. Nadarajah is also affiliated with Morristown Medical Center. Dmand AI links Dr. Nadarajah to 3 more hospitals.
What medical group is Dr. Daya Nadarajah part of?
Dr. Nadarajah is linked to Pulmonary Medical Associates.
Does Dr. Daya Nadarajah accept Medicare?
Yes. CMS data shows Dr. Nadarajah billed Medicare for 12,837 services in 2024, and Dr. Nadarajah accepts Medicare assignment.
Does Dr. Daya Nadarajah offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Nadarajah as offering telehealth services.
How many Medicare patients does Dr. Daya Nadarajah see?
CMS counts 1,637 Medicare patients who saw Dr. Nadarajah in 2024, with an average age of 75.
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What services does Dr. Daya Nadarajah bill to Medicare?
In 2024, Dr. Nadarajah's most billed Medicare services were hospital inpatient care (99232), office visit, established patient (99213) and care management and other visits (99457).
What drugs does Dr. Daya Nadarajah prescribe most?
In 2024 Medicare Part D data, Dr. Nadarajah's most prescribed drugs by claims were Atorvastatin Calcium, Trelegy Ellipta and Albuterol Sulfate Hfa.
Has Dr. Daya Nadarajah received payments from drug or device companies?
CMS Open Payments shows $17,358 in general payments to Dr. Nadarajah from 64 companies from 2016 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Daya Nadarajah been practicing?
Dr. Nadarajah graduated from medical school in 1982, 44 years ago.
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