Dr. Thondikulam Ananthanarayanan Subramanian, MD

  • New Port Richey, FL
  • Neurologist
NPI1326085416PAC ID6608069174
Medicare services, 2024
631
Medicare patients, 2024
167
Part D claims, 2024
62
Publications
52
Hospital affiliations
2
Practice address
9330 Sr 54, Trinity, FL 34655
Practice phone
Call (727) 834-4900
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

HCA Florida Trinity Hospital

Hospital · Trinity, Florida

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Dr. Thondikulam Ananthanarayanan Subramanian is a neurologist in New Port Richey, Florida

Dr. Subramanian practices at HCA Florida Trinity Hospital in Trinity, Florida, part of HCA Healthcare.

Dr. Subramanian's NPI, 1326085416, was assigned on May 31, 2006. Dr. Subramanian graduated from Jawaharlal Institute of Postgraduate Medical Education and Research in 1979. Dr. Subramanian holds Florida license ME82529.

NPI and contact details
Medicare PAC ID
6608069174
NPI enumeration date
May 31, 2006
NPI status
Active
Practice phone
(727) 834-4900
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
68
Medical school graduation
1979

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

Dr. Thondikulam Ananthanarayanan Subramanian practices at HCA Florida Trinity Hospital in Trinity, Florida

Dr. Subramanian's primary practice is HCA Florida Trinity Hospital, at 9330 Sr 54, Trinity, FL 34655 in Pasco County. The practice phone is (727) 834-4900.

Source: Dmand AI Affiliation Data

Dr. Thondikulam Ananthanarayanan Subramanian is affiliated with 4 sites of care and 1 medical group

Dr. Subramanian's primary practice is HCA Florida Trinity Hospital in Trinity, Florida, part of HCA Healthcare. Dr. Subramanian is also affiliated with BayCare Morton Plant North Bay Hospital. The medical group on file is The Malka Institute of Neuroscience and Disease. Dmand AI also links Dr. Subramanian to 1 more physician office and 1 group practice or clinic, each named with a free account.

See all 5 affiliations for Dr. Subramanian

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Thondikulam Ananthanarayanan Subramanian's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Subramanian practices, 4 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
HCA Florida Trinity HospitalAvailable with a free account
+3 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Thondikulam Ananthanarayanan Subramanian is one of 1,297 neurologists in Florida

Neurology is Dr. Subramanian's primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Dr. Subramanian is board certified in neurology by the American Board of Psychiatry and Neurology. Dmand AI has Dr. Subramanian's licenses on file in 2 states: Florida and Arizona.

Specialties and state licenses

  • Neurology, FloridaPrimaryLicense ME82529 · 2001 to 2026 · taxonomy 2084N0400X
  • Arizona license2024 to 2026

Clinical focus

Dmand AI lists acute mini-stroke (TIA), cerebrovascular disease, encephalopathy, epilepsy, hereditary polyneuropathy, lower back pain, nerve damage and neuropathy among the conditions Dr. Subramanian treats.

Neurologists near Dr. Subramanian

Counts of neurologists 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. Thondikulam Ananthanarayanan Subramanian billed Medicare for 631 services in 2024

CMS data shows 631 Medicare services from Dr. Subramanian across 6 procedure codes in 2024, for 167 Medicare patients. Medicare paid $56,578 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024631
Medicare patients167
Paid by Medicare$56,578
Procedure codes6

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

  • 2023
  • 2024
Office and hospital visits
2023: 5792024: 5476%
Tests and treatments
2023: 1052024: 8420%

Dr. Subramanian compared with the Florida median for neurologists, 2024

  • Dr. Subramanian
  • Florida median
Medicare services
631vs 47932% above
Medicare patients
167vs 23730% below
Part D claims
19vs 41595% below

Medians across 1,209 neurologists in Florida with Dmand AI profiles that report each measure.

Dr. Subramanian'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. Subramanian

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

Dr. Thondikulam Ananthanarayanan Subramanian treated 167 Medicare patients in 2024, average age 75

CMS counts 167 Medicare patients who saw Dr. Subramanian in 2024. The largest group is 75 to 84, with 60 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 31% are also on Medicaid. Their average risk score is 2.84, 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. Subramanian's median patient age at 68, with 59% women.

Medicare patients, 2024167
Average age75
Average risk score2.84
Also on Medicaid31%

Dr. Subramanian's Medicare patients by age, 2024

Dr. Subramanian's Medicare patients by sex, 2024

  • Women8853%
  • Men7947%

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

  1. High blood pressure75%
  2. High cholesterol75%
  3. Stroke or TIA75%
  4. Arthritis69%
  5. Ischemic heart disease60%
  6. Mood disorders57%
  7. Anxiety54%
  8. Depression53%

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

Dr. Subramanian'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

  • Women59%
  • Men39%

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

Dr. Thondikulam Ananthanarayanan Subramanian wrote 62 Medicare Part D claims in 2024

In 2024, Dr. Subramanian wrote 62 Medicare Part D claims for 31 patients. 98% of them were for generic drugs. CMS names the drug for 19 of them, across 1 drug with 11 or more claims each, at $568 in total drug cost. In 2023, CMS named 787 claims across 19 drugs.

Part D claims, 202462
Drugs named by CMS1
Total drug cost$568
Part D patients31

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

  • Generic61 claims98%
  • Brand-name and other1 claims2%

Dr. Subramanian'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.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 7872024: 1998%

Drugs named by CMS: 1 in 2024, 19 in 2023.

See all prescribing by Dr. Subramanian

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

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Dr. Thondikulam Ananthanarayanan Subramanian has 52 publications on record

Dmand AI links 52 papers to Dr. Subramanian, published from 2005 to 2020. 2007 was the busiest year, with 3. The most frequent topics are Molecular Sequence Data, Cell Line and Amino Acid Sequence. Dr. Subramanian has published most often in J Virol. Dr. Subramanian's most frequent co-authors are David Benjamin Beck, MD, PhD, Wendy Chung, MD and Aravinda Krishna Ganapathy, MD.

Papers52
Years published2005 to 2020

Dr. Subramanian's papers by year, 2005 to 2020

Topics Dr. Subramanian writes about most

  • Molecular Sequence Data
  • Cell Line
  • Amino Acid Sequence
  • HeLa Cells
  • Proto-Oncogene Proteins c-bcl-2
  • Apoptosis
  • Base Sequence
  • Adenovirus E1B Proteins

Dr. Subramanian's most frequent co-authors

Recent publications by Dr. Subramanian

See all 52 publications and co-authors

See who Dr. Subramanian researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Subramanian works with, so you can find a warm path to the right neurologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Thondikulam Ananthanarayanan Subramanian received $8,851 in industry payments from 2016 to 2023

CMS Open Payments shows 404 general payments to Dr. Subramanian from 48 drug and device companies from 2016 to 2023. Food and beverage make up the largest share, 97% of the total. Novartis Pharmaceuticals Corporation paid the most, $846.

General payments to Dr. Subramanian by program year, 2016 to 2023

General payments to Dr. Subramanian by kind, 2016 to 2023

$8.9Kin total
  • Food and beverage$8,60397%
  • Education$2353%
  • Speaker and faculty fees$130%

Companies that paid Dr. Subramanian the most, 2016 to 2023

Share is of all general payments to this clinician.

See all payments to Dr. Subramanian

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

Dr. Thondikulam Ananthanarayanan Subramanian has 1 award and honors on record

Dmand AI lists 1 award for Dr. Subramanian, most recently CMS Stage 1 EHR in 2013.

Awards and honors for Dr. Subramanian

  1. 2013
    • CMS Stage 1 EHR

Source: Dmand AI Professional Profile Data

Dr. Thondikulam Ananthanarayanan Subramanian graduated from Jawaharlal Institute of Postgraduate Medical Education and Research

Dr. Subramanian graduated from Jawaharlal Institute of Postgraduate Medical Education and Research in 1979.

  1. Medical schoolJawaharlal Institute of Postgraduate Medical Education and Research
  2. Board certified in neurologyAmerican Board of Psychiatry and Neurology

Source: Dmand AI Professional Profile Data

Dr. Thondikulam Ananthanarayanan Subramanian accepts plans from 12 insurance carriers

Dr. Subramanian is in network with 12 carriers, including Aetna, Elevance and Excellus BlueCross BlueShield. Medicare plans come from the most carriers, 11. Check the plan with the practice before a visit.

  • Aetna
  • Elevance
  • Excellus BlueCross BlueShield
  • Cigna
  • United Healthcare
  • Blue Cross Blue Shield of Massachusetts
  • Blue Cross Blue Shield of Michigan
  • HCSC
  • +4 more carriersWith a free account

Plan types Dr. Subramanian accepts, by number of carriers

  1. Medicare11
  2. PPO8
  3. HMO6
  4. EPO4
  5. POS4

Source: Dmand AI Insurance Network Data

Sources for Dr. Thondikulam Ananthanarayanan Subramanian'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 phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy 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)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
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. Thondikulam Ananthanarayanan Subramanian

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. Thondikulam Ananthanarayanan Subramanian's NPI number?

Dr. Thondikulam Ananthanarayanan Subramanian's NPI number is 1326085416. It was assigned on May 31, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Thondikulam Ananthanarayanan Subramanian?

Dr. Thondikulam Ananthanarayanan Subramanian is a neurologist in New Port Richey, Florida. The primary specialty in the NPI Registry is Neurology Physician (taxonomy code 2084N0400X).

Where does Dr. Thondikulam Ananthanarayanan Subramanian practice?

Dr. Subramanian practices at 9330 Sr 54, Trinity, FL 34655. Dr. Subramanian's primary practice is HCA Florida Trinity Hospital in Trinity, Florida, part of HCA Healthcare. Dmand AI also links Dr. Subramanian to 1 physician office and 1 group practice or clinic.

What is Dr. Thondikulam Ananthanarayanan Subramanian's office phone number?

The practice phone on file for Dr. Subramanian is (727) 834-4900.

What is Dr. Thondikulam Ananthanarayanan Subramanian's medical license number?

Dr. Subramanian holds Florida license ME82529, one of the licenses on file in 2 states.

Which states has Dr. Thondikulam Ananthanarayanan Subramanian been licensed in?

Dmand AI has state licenses on file for Dr. Subramanian in Florida (2001 to 2026) and Arizona (2024 to 2026).

Which hospitals is Dr. Thondikulam Ananthanarayanan Subramanian affiliated with?

Dr. Subramanian practices at HCA Florida Trinity Hospital in Trinity, Florida. Dr. Subramanian is also affiliated with BayCare Morton Plant North Bay Hospital.

What medical group is Dr. Thondikulam Ananthanarayanan Subramanian part of?

Dr. Subramanian is linked to The Malka Institute of Neuroscience and Disease.

Does Dr. Thondikulam Ananthanarayanan Subramanian accept Medicare?

Yes. CMS data shows Dr. Subramanian billed Medicare for 631 services in 2024.

How many Medicare patients does Dr. Thondikulam Ananthanarayanan Subramanian see?

CMS counts 167 Medicare patients who saw Dr. Subramanian in 2024, with an average age of 75.

Show 9 more questionsShow fewer questions

Is Dr. Thondikulam Ananthanarayanan Subramanian board certified?

Yes. Dr. Subramanian is board certified in neurology by the American Board of Psychiatry and Neurology.

What services does Dr. Thondikulam Ananthanarayanan Subramanian bill to Medicare?

In 2024, Dr. Subramanian's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99223) and nerve and brain test (95819).

Where did Dr. Thondikulam Ananthanarayanan Subramanian go to medical school?

Dr. Subramanian graduated from Jawaharlal Institute of Postgraduate Medical Education and Research in 1979.

What drugs does Dr. Thondikulam Ananthanarayanan Subramanian prescribe most?

In 2024 Medicare Part D data, Dr. Subramanian's most prescribed drugs by claims were Carbidopa-Levodopa.

Has Dr. Thondikulam Ananthanarayanan Subramanian received payments from drug or device companies?

CMS Open Payments shows $8,851 in general payments to Dr. Subramanian from 48 companies from 2016 to 2023. The largest total came from Novartis Pharmaceuticals Corporation.

How long has Dr. Thondikulam Ananthanarayanan Subramanian been practicing?

Dr. Subramanian graduated from medical school in 1979, 47 years ago.

Does Dr. Thondikulam Ananthanarayanan Subramanian do research?

Dmand AI links 52 publications to Dr. Subramanian, published from 2005 to 2020.

Who does Dr. Thondikulam Ananthanarayanan Subramanian publish with?

Dr. Subramanian's most frequent co-authors are David Benjamin Beck, MD, PhD (2 shared papers), Wendy Chung, MD (2 shared papers) and Aravinda Krishna Ganapathy, MD (1 shared paper).

What insurance does Dr. Thondikulam Ananthanarayanan Subramanian accept?

Dr. Subramanian is in network with 12 carriers, including Aetna, Elevance and Excellus BlueCross BlueShield. Medicare plans come from the most carriers, 11. Check the plan with the practice before a visit.

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