Dr. Nilanee Antonette Karikaran, MD

  • Snellville, GA
  • Neurologist
NPI1114008927PAC ID6800990839
Medicare services, 2024
513
Medicare patients, 2024
245
Part D claims, 2024
3,276
Hospital affiliations
3
Industry payments
$17,472
Practice address
2138 Scenic Hwy, Snellville, GA 30078
Practice phone
Call (678) 395-3289
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Headache and Neurological Care Center

Snellville, Georgia

See all 9 affiliations

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Dr. Nilanee Antonette Karikaran is a neurologist in Snellville, Georgia

Dr. Karikaran practices at Headache and Neurological Care Center in Snellville, Georgia.

Dr. Karikaran's NPI, 1114008927, was assigned on October 18, 2006. Dr. Karikaran holds Georgia license 57872.

NPI and contact details
Medicare PAC ID
6800990839
NPI enumeration date
October 18, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(678) 395-3289
Professional email
Get email
Personal email
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Mobile number
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Sex
Female
Estimated age
60
Medical school graduation
1992

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Nilanee Antonette Karikaran practices at Headache and Neurological Care Center in Snellville, Georgia

Dr. Karikaran's primary practice is Headache and Neurological Care Center, at 2138 Scenic Hwy, Snellville, GA 30078 in Gwinnett County. The practice phone is (678) 395-3289.

  • Headache and Neurological Care Center
    2138 Scenic Hwy, Snellville, GA 30078 · Gwinnett CountyPhone(678) 395-3289

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Nilanee Antonette Karikaran is affiliated with 6 sites of care and 3 medical groups

Dr. Karikaran's primary practice is Headache and Neurological Care Center in Snellville, Georgia. Dr. Karikaran is also affiliated with Piedmont Eastside Medical Center. The medical group on file is Emory Clinic. Dmand AI also links Dr. Karikaran to 2 more hospitals, 2 medical groups, 1 physician office and 1 group practice or clinic, each named with a free account.

See all 9 affiliations for Dr. Karikaran

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Nilanee Antonette Karikaran's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Karikaran practices, 5 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Headache and Neurological Care CenterAvailable with a free account
+5 more sites and 2 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Nilanee Antonette Karikaran is one of 537 neurologists in Georgia

Neurology is Dr. Karikaran's primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Dr. Karikaran is licensed in Georgia.

Specialties and state licenses

  • Neurology, GeorgiaPrimaryLicense 57872 · taxonomy 2084N0400X

Neurologists near Dr. Karikaran

Counts of neurologists with a Dmand AI profile, by place and practice. Each opens the list.

537neurologists in Georgia
4neurologists in Snellville

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Nilanee Antonette Karikaran billed Medicare for 513 services in 2024

CMS data shows 513 Medicare services from Dr. Karikaran across 6 procedure codes in 2024, for 245 Medicare patients. Medicare paid $56,638 for them. Every service was in an office.

Medicare services, 2024513
Medicare patients245
Paid by Medicare$56,638
Procedure codes6

Dr. Karikaran's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 5062024: 43813%
Tests and treatments
2023: 952024: 7521%

Dr. Karikaran compared with the Georgia median for neurologists, 2024

  • Dr. Karikaran
  • Georgia median
Medicare services
513vs 35644% above
Medicare patients
245vs 20818% above
Part D claims
2,992vs 3339.0 times

Medians across 505 neurologists in Georgia with Dmand AI profiles that report each measure.

Dr. Karikaran'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.

See all procedures by Dr. Karikaran

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Nilanee Antonette Karikaran treated 245 Medicare patients in 2024, average age 73

CMS counts 245 Medicare patients who saw Dr. Karikaran in 2024. The largest group is 65 to 74, with 100 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 29% are also on Medicaid. Their average risk score is 1.66, 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. Karikaran's median patient age at 69, with 65% women.

Medicare patients, 2024245
Average age73
Average risk score1.66
Also on Medicaid29%

Dr. Karikaran's Medicare patients by age, 2024

Dr. Karikaran's Medicare patients by sex, 2024

  • Women14760%
  • Men9840%

Chronic conditions among Dr. Karikaran's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis45%
  4. Diabetes38%
  5. Mood disorders36%
  6. Anxiety35%
  7. Depression32%
  8. Chronic kidney disease26%

Share of Medicare patients with each condition. A patient can have several.

Dr. Karikaran's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 69

Patient panel by sex, all payers

  • Women65%
  • Men34%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Nilanee Antonette Karikaran wrote 3,276 Medicare Part D claims in 2024

In 2024, Dr. Karikaran wrote 3,276 Medicare Part D claims for 516 patients. 91% of them were for generic drugs. CMS names the drug for 2,992 of them, across 52 drugs with 11 or more claims each, at $1,350,119 in total drug cost. In 2023, CMS named 2,565 claims across 48 drugs.

Part D claims, 20243,276
Drugs named by CMS52
Total drug cost$1.4M
Part D patients516

Dr. Karikaran's Part D claims by kind of drug, 2024

  • Generic2,978 claims91%
  • Brand-name278 claims8%
  • Other20 claims1%

Dr. Karikaran'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. Karikaran's Part D claims, 2024

  • Opioids1%48 of 3,276 claims
  • Antipsychotics, patients 65 and over2%62 of 3,276 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: 2,5652024: 2,99217%

Drugs named by CMS: 52 in 2024, 48 in 2023.

See all prescribing by Dr. Karikaran

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

How Dr. Nilanee Antonette Karikaran takes part in Medicare

Dr. Karikaran 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. Nilanee Antonette Karikaran received $17,472 in industry payments from 2016 to 2025

CMS Open Payments shows 742 general payments to Dr. Karikaran from 65 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 72% of the total. Catalyst Pharmaceuticals, Inc. paid the most, $3,735.

General payments to Dr. Karikaran by program year, 2016 to 2025

General payments to Dr. Karikaran by kind, 2016 to 2025

$17.5Kin total
  • Food and beverage$12,63972%
  • Honoraria$2,50014%
  • Consulting fees$1,3007%
  • Travel and lodging$9215%
  • Education$1121%

Companies that paid Dr. Karikaran the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Karikaran

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Sources for Dr. Nilanee Antonette Karikaran's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Nilanee Antonette Karikaran

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. Nilanee Antonette Karikaran's NPI number?

Dr. Nilanee Antonette Karikaran's NPI number is 1114008927. It was assigned on October 18, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Nilanee Antonette Karikaran?

Dr. Nilanee Antonette Karikaran is a neurologist in Snellville, Georgia. The primary specialty in the NPI Registry is Neurology Physician (taxonomy code 2084N0400X).

Where does Dr. Nilanee Antonette Karikaran practice?

Dr. Karikaran practices at 2138 Scenic Hwy, Snellville, GA 30078. Dr. Karikaran's primary practice is Headache and Neurological Care Center in Snellville, Georgia. Dmand AI also links Dr. Karikaran to 2 hospitals, 2 medical groups, 1 physician office and 1 group practice or clinic.

What is Dr. Nilanee Antonette Karikaran's office phone number?

The practice phone on file for Dr. Karikaran is (678) 395-3289.

What is Dr. Nilanee Antonette Karikaran's medical license number?

Dr. Karikaran holds Georgia license 57872.

Which hospitals is Dr. Nilanee Antonette Karikaran affiliated with?

Dr. Karikaran is affiliated with Piedmont Eastside Medical Center. Dmand AI links Dr. Karikaran to 2 more hospitals.

What medical group is Dr. Nilanee Antonette Karikaran part of?

Dr. Karikaran is linked to Emory Clinic. Dmand AI links Dr. Karikaran to 2 more medical groups.

Does Dr. Nilanee Antonette Karikaran accept Medicare?

Yes. CMS data shows Dr. Karikaran billed Medicare for 513 services in 2024, and Dr. Karikaran accepts Medicare assignment.

How many Medicare patients does Dr. Nilanee Antonette Karikaran see?

CMS counts 245 Medicare patients who saw Dr. Karikaran in 2024, with an average age of 73.

What services does Dr. Nilanee Antonette Karikaran bill to Medicare?

In 2024, Dr. Karikaran's most billed Medicare services were office visit, established patient (99214), office visit, new patient (99204) and nerve and brain test (95819).

Show 3 more questionsShow fewer questions

What drugs does Dr. Nilanee Antonette Karikaran prescribe most?

In 2024 Medicare Part D data, Dr. Karikaran's most prescribed drugs by claims were Donepezil HCl, Escitalopram Oxalate and Gabapentin.

Has Dr. Nilanee Antonette Karikaran received payments from drug or device companies?

CMS Open Payments shows $17,472 in general payments to Dr. Karikaran from 65 companies from 2016 to 2025. The largest total came from Catalyst Pharmaceuticals, Inc.

How long has Dr. Nilanee Antonette Karikaran been practicing?

Dr. Karikaran graduated from medical school in 1992, 34 years ago.

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