Dr. Kalyani Theivanayagam, MD
- Medicare services, 2024
- 941
- Medicare patients, 2024
- 120
- Part D claims, 2024
- 7,476
- Hospital affiliations
- 2
- Industry payments
- $9,550
- Practice address
- 24 Park Ave, West Orange, NJ 07052-5553
- Practice phone
- Call (973) 669-8181
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Manickam Ganesh M.d., P.a.
Primary care practice · West Orange, New Jersey
Find Dr. Theivanayagam'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. Kalyani Theivanayagam is an internist in West Orange, New Jersey
Dr. Theivanayagam practices at Manickam Ganesh M.d., P.a. in West Orange, New Jersey.
Dr. Theivanayagam's NPI, 1598878910, was assigned on August 17, 2006. Dr. Theivanayagam holds New Jersey license 25MA06857500.
- NPI
- 1598878910NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1052507316
- NPI enumeration date
- August 17, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (973) 669-8181
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 57
- Medical school graduation
- 1995
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Kalyani Theivanayagam practices at Manickam Ganesh M.d., P.a. in West Orange, New Jersey
Dr. Theivanayagam's primary practice is Manickam Ganesh M.d., P.a., at 24 Park Ave, West Orange, NJ 07052-5553. The practice phone is (973) 669-8181.
- Manickam Ganesh M.d., P.a.24 Park Ave, West Orange, NJ 07052-5553Phone(973) 669-8181
Source: Dmand AI Affiliation Data
Dr. Kalyani Theivanayagam is affiliated with 3 sites of care and 2 medical groups
Dr. Theivanayagam's primary practice is Manickam Ganesh M.d., P.a. in West Orange, New Jersey. Dr. Theivanayagam is also affiliated with Cooperman Barnabas Medical Center. The medical group on file is Manickam Ganesh M.D., P.A. Dmand AI also links Dr. Theivanayagam to 1 more hospital and 1 medical group, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Kalyani Theivanayagam's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Theivanayagam practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Manickam Ganesh M.d., P.a. | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Kalyani Theivanayagam is one of 4,226 internists in New Jersey
Internal medicine is Dr. Theivanayagam's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Theivanayagam is licensed in New Jersey.
Specialties and state licenses
- Internal medicine, New JerseyPrimary
Internists near Dr. Theivanayagam
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. Kalyani Theivanayagam billed Medicare for 941 services in 2024
CMS data shows 941 Medicare services from Dr. Theivanayagam across 13 procedure codes in 2024, for 120 Medicare patients. Medicare paid $80,497 for them.
Dr. Theivanayagam's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 8772024: 77711%
- Tests and treatments
- 2023: 1532024: 9141%
- Surgery
- 2023: 482024: 504%
- Other services
- 2023: 372024: 2338%
Where Dr. Theivanayagam's Medicare services took place, 2024
- In an office38741%
- In a facility55459%
Dr. Theivanayagam compared with the New Jersey median for internists, 2024
- Dr. Theivanayagam
- New Jersey median
- Medicare services
- 941vs 72330% above
- Medicare patients
- 120vs 23148% below
- Part D claims
- 6,817vs 8308.2 times
Medians across 4,086 internists in New Jersey with Dmand AI profiles that report each measure.
Dr. Theivanayagam'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. Theivanayagam and other internists in New Jersey.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Kalyani Theivanayagam treated 120 Medicare patients in 2024, average age 72
CMS counts 120 Medicare patients who saw Dr. Theivanayagam in 2024. The largest group is 65 to 74, with 43 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 41% are also on Medicaid. Their average risk score is 2.47, 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. Theivanayagam's median patient age at 68, with 53% women.
Dr. Theivanayagam's Medicare patients by age, 2024
Dr. Theivanayagam's Medicare patients by sex, 2024
- Women7159%
- Men4941%
Chronic conditions among Dr. Theivanayagam's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes56%
- Arthritis44%
- Stroke or TIA40%
- Ischemic heart disease33%
- Chronic kidney disease30%
- Heart failure29%
Share of Medicare patients with each condition. A patient can have several.
Dr. Theivanayagam's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women53%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Kalyani Theivanayagam wrote 7,476 Medicare Part D claims in 2024
In 2024, Dr. Theivanayagam wrote 7,476 Medicare Part D claims for 320 patients. 83% of them were for generic drugs. CMS names the drug for 6,817 of them, across 128 drugs with 11 or more claims each, at $620,967 in total drug cost. In 2023, CMS named 6,836 claims across 127 drugs.
Dr. Theivanayagam's Part D claims by kind of drug, 2024
- Generic6,180 claims83%
- Brand-name1,169 claims16%
- Other127 claims2%
Dr. Theivanayagam'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. Theivanayagam's Part D claims, 2024
- Opioids1%98 of 7,476 claims
- Antibiotics2%129 of 7,476 claims
- Antipsychotics, patients 65 and over0%17 of 7,476 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: 6,8362024: 6,817No change
Drugs named by CMS: 128 in 2024, 127 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. Kalyani Theivanayagam offers telehealth to Medicare patients
Dr. Theivanayagam accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Theivanayagam as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Kalyani Theivanayagam received $9,550 in industry payments from 2016 to 2025
CMS Open Payments shows 572 general payments to Dr. Theivanayagam from 33 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 98% of the total. Novo Nordisk Inc paid the most, $1,753.
General payments to Dr. Theivanayagam by program year, 2016 to 2025
General payments to Dr. Theivanayagam by kind, 2016 to 2025
- Food and beverage$9,34398%
- Education$2082%
Companies that paid Dr. Theivanayagam 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. Kalyani Theivanayagam'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 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. Kalyani Theivanayagam
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. Kalyani Theivanayagam's NPI number?
Dr. Kalyani Theivanayagam's NPI number is 1598878910. It was assigned on August 17, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Kalyani Theivanayagam?
Dr. Kalyani Theivanayagam is an internist in West Orange, New Jersey. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Kalyani Theivanayagam practice?
Dr. Theivanayagam practices at 24 Park Ave, West Orange, NJ 07052-5553. Dr. Theivanayagam's primary practice is Manickam Ganesh M.d., P.a. in West Orange, New Jersey. Dmand AI also links Dr. Theivanayagam to 1 hospital and 1 medical group.
What is Dr. Kalyani Theivanayagam's office phone number?
The practice phone on file for Dr. Theivanayagam is (973) 669-8181.
What is Dr. Kalyani Theivanayagam's medical license number?
Dr. Theivanayagam holds New Jersey license 25MA06857500.
Which hospitals is Dr. Kalyani Theivanayagam affiliated with?
Dr. Theivanayagam is affiliated with Cooperman Barnabas Medical Center. Dmand AI links Dr. Theivanayagam to 1 more hospital.
What medical group is Dr. Kalyani Theivanayagam part of?
Dr. Theivanayagam is linked to Manickam Ganesh M.D., P.A. Dmand AI links Dr. Theivanayagam to 1 more medical group.
Does Dr. Kalyani Theivanayagam accept Medicare?
Yes. CMS data shows Dr. Theivanayagam billed Medicare for 941 services in 2024, and Dr. Theivanayagam accepts Medicare assignment.
Does Dr. Kalyani Theivanayagam offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Theivanayagam as offering telehealth services.
How many Medicare patients does Dr. Kalyani Theivanayagam see?
CMS counts 120 Medicare patients who saw Dr. Theivanayagam in 2024, with an average age of 72.
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What services does Dr. Kalyani Theivanayagam bill to Medicare?
In 2024, Dr. Theivanayagam's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99233) and care management and other visits (99490).
What drugs does Dr. Kalyani Theivanayagam prescribe most?
In 2024 Medicare Part D data, Dr. Theivanayagam's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Metformin HCl.
Has Dr. Kalyani Theivanayagam received payments from drug or device companies?
CMS Open Payments shows $9,550 in general payments to Dr. Theivanayagam from 33 companies from 2016 to 2025. The largest total came from Novo Nordisk Inc.
How long has Dr. Kalyani Theivanayagam been practicing?
Dr. Theivanayagam graduated from medical school in 1995, 31 years ago.
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