Dr. Thomas Julian Gianaris, MD

  • Tyler, TX
  • Neurosurgeon
NPI1629417829PAC ID1658670732
Medicare services, 2024
433
Medicare patients, 2024
205
Part D claims, 2024
84
Publications
13
MIPS score, 2024
76
Practice address
1000 South Beckham Ave, Tyler, TX 75701
Practice phone
Call (903) 597-0351
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

UT Health Tyler

Hospital · Tyler, Texas

See all 8 affiliations

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Dr. Thomas Julian Gianaris is a neurosurgeon in Tyler, Texas

Dr. Gianaris practices at UT Health Tyler in Tyler, Texas, part of Ardent Health.

Dr. Gianaris' NPI, 1629417829, was assigned on June 20, 2013. Dr. Gianaris graduated from Indiana University School Of Medicine in 2013. Dr. Gianaris holds Texas license S7218.

NPI and contact details
Medicare PAC ID
1658670732
NPI enumeration date
June 20, 2013
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(903) 597-0351
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
39
Medical school graduation
2013

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

Dr. Thomas Julian Gianaris practices at UT Health Tyler in Tyler, Texas

Dr. Gianaris' primary practice is UT Health Tyler, at 1000 South Beckham Ave, Tyler, TX 75701 in Smith County. The practice phone is (903) 597-0351.

  • UT Health Tyler
    1000 South Beckham Ave, Tyler, TX 75701 · Smith CountyPhone(903) 597-0351

Source: Dmand AI Affiliation Data

Dr. Thomas Julian Gianaris is affiliated with 7 sites of care and 1 medical group

Dr. Gianaris' primary practice is UT Health Tyler in Tyler, Texas, part of Ardent Health. Dr. Gianaris is also affiliated with UT Health North Campus Tyler. The medical group on file is Tyler Neurosurgical Associates. Dmand AI also links Dr. Gianaris to 4 more hospitals and 1 group practice or clinic, each named with a free account.

See all 8 affiliations for Dr. Gianaris

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

Dmand AI tracks the EHR system at Dr. Thomas Julian Gianaris' practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gianaris practices, 7 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
UT Health TylerAvailable with a free account
+6 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Thomas Julian Gianaris is one of 603 neurosurgeons in Texas

Neurological surgery is Dr. Gianaris' primary specialty in the NPI Registry, under taxonomy code 207T00000X. Dr. Gianaris is board certified in neurological surgery by the American Board of Neurological Surgery. Dr. Gianaris is licensed in Texas.

Specialties and state licenses

  • Neurological surgery, TexasPrimaryLicense S7218 · 2020 to 2026 · taxonomy 207T00000X

Clinical focus

Dmand AI lists back and neck pain treatment without fusion, craniotomy, lower back pain, muscle pain, fibromyalgia, and limb pain, neck pain and spine problems, spinal fusion and thoracic spine disorders among the conditions Dr. Gianaris treats.

Neurosurgeons near Dr. Gianaris

Counts of neurosurgeons 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. Thomas Julian Gianaris billed Medicare for 433 services in 2024

CMS data shows 433 Medicare services from Dr. Gianaris across 11 procedure codes in 2024, for 205 Medicare patients. Medicare paid $64,990 for them.

Medicare services, 2024433
Medicare patients205
Paid by Medicare$64,990
Procedure codes11

Dr. Gianaris' Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 2732024: 32017%
Surgery
2023: 332024: 113242%

Where Dr. Gianaris' Medicare services took place, 2024

  • In an office21750%
  • In a facility21650%

Dr. Gianaris compared with the Texas median for neurosurgeons, 2024

  • Dr. Gianaris
  • Texas median
Medicare services
433vs 2122.0 times
Medicare patients
205vs 13849% above
Part D claims
50vs 5814% below

Medians across 518 neurosurgeons in Texas with Dmand AI profiles that report each measure.

Dr. Gianaris' 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. Gianaris

Need commercial claims for Dr. Gianaris?

Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Gianaris and other neurosurgeons in Texas.

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

Dr. Thomas Julian Gianaris treated 205 Medicare patients in 2024, average age 72

CMS counts 205 Medicare patients who saw Dr. Gianaris in 2024. The largest group is 65 to 74, with 110 patients. 75% of them have arthritis, and 75% have high blood pressure. 15% are also on Medicaid. Their average risk score is 1.51, 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. Gianaris' median patient age at 72, with 48% women.

Medicare patients, 2024205
Average age72
Average risk score1.51
Also on Medicaid15%

Dr. Gianaris' Medicare patients by age, 2024

Dr. Gianaris' Medicare patients by sex, 2024

  • Women10551%
  • Men10049%

Chronic conditions among Dr. Gianaris' Medicare patients, 2024

  1. Arthritis75%
  2. High blood pressure75%
  3. High cholesterol75%
  4. Mood disorders41%
  5. Diabetes40%
  6. Depression39%
  7. Anxiety34%
  8. Ischemic heart disease34%

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

Dr. Gianaris' patients across all payers

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

Patient panel by age, all payers

Median age 72

Patient panel by sex, all payers

  • Women48%
  • Men51%

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

Dr. Thomas Julian Gianaris wrote 84 Medicare Part D claims in 2024

In 2024, Dr. Gianaris wrote 84 Medicare Part D claims for 55 patients. 100% of them were for generic drugs. CMS names the drug for 50 of them, across 2 drugs with 11 or more claims each, at $574 in total drug cost. In 2023, CMS named 26 claims across 2 drugs.

Part D claims, 202484
Drugs named by CMS2
Total drug cost$574
Part D patients55

Dr. Gianaris' 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. Gianaris' Part D claims, 2024

  • Opioids36%30 of 84 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: 262024: 5092%

Drugs named by CMS: 2 in 2024, 2 in 2023.

See all prescribing by Dr. Gianaris

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. Thomas Julian Gianaris scored 76 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 76 out of 100 for Dr. Gianaris for performance year 2024, reported as part of a group. Dr. Gianaris accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Gianaris as offering telehealth. CMS counts 119 procedures of spinal fusion by Dr. Gianaris, more than 78% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Gianaris' MIPS scores, performance year 2024

  • 76of 100Final score
  • 67.9of 100Quality
  • 40of 100Improvement Activities
  • 63of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Where Dr. Gianaris ranks in Medicare procedure volume

Spinal fusion
78th percentile119 procedures
Laminectomy or laminotomy (partial removal of spine bones)
75th percentile47 procedures

CMS ranks each clinician against every clinician it reports for the same procedure category.

Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)

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Dr. Thomas Julian Gianaris has 13 publications on record

Dmand AI links 13 papers to Dr. Gianaris, published from 2013 to 2021. 2017 was the busiest year, with 3. The most frequent topics are Hydrocephalus. Dr. Gianaris has published most often in J Neurosurg Pediatr. Dr. Gianaris' most frequent co-authors are Daniel H. Fulkerson, MD, Nicolas Villelli, MD and Nicholas M. Barbaro, MD.

Papers13
Years published2013 to 2021

Dr. Gianaris' papers by year, 2013 to 2021

Topics Dr. Gianaris writes about most

  • Hydrocephalus

Dr. Gianaris' most frequent co-authors

Recent publications by Dr. Gianaris

See all 13 publications and co-authors

See who Dr. Gianaris researches with

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

How network discovery works

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

Dr. Thomas Julian Gianaris received $820 in industry payments from 2017 to 2024

CMS Open Payments shows 16 general payments to Dr. Gianaris from 5 drug and device companies from 2017 to 2024. Food and beverage make up the largest share, 100% of the total. Medtronic, Inc. paid the most, $475.

General payments to Dr. Gianaris by program year, 2017 to 2024

Companies that paid Dr. Gianaris the most, 2017 to 2024

Share is of all general payments to this clinician.

See all payments to Dr. Gianaris

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

Dr. Thomas Julian Gianaris graduated from Indiana University School Of Medicine

Dr. Gianaris graduated from Indiana University School Of Medicine in 2013.

  1. Medical schoolIndiana University School Of Medicine
  2. Board certified in neurological surgeryAmerican Board of Neurological Surgery

Source: Dmand AI Professional Profile Data

Dr. Thomas Julian Gianaris accepts plans from 20 insurance carriers

Dr. Gianaris is in network with 20 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 13. Check the plan with the practice before a visit.

Plan types Dr. Gianaris accepts, by number of carriers

  1. PPO13
  2. HMO12
  3. Medicare10
  4. POS4
  5. EPO3

Source: Dmand AI Insurance Network Data

Sources for Dr. Thomas Julian Gianaris'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)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (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)
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. Thomas Julian Gianaris

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. Thomas Julian Gianaris' NPI number?

Dr. Thomas Julian Gianaris' NPI number is 1629417829. It was assigned on June 20, 2013, and it is active in the NPI Registry.

What kind of doctor is Dr. Thomas Julian Gianaris?

Dr. Thomas Julian Gianaris is a neurosurgeon in Tyler, Texas. The primary specialty in the NPI Registry is Neurological Surgery Physician (taxonomy code 207T00000X).

Where does Dr. Thomas Julian Gianaris practice?

Dr. Gianaris practices at 1000 South Beckham Ave, Tyler, TX 75701. Dr. Gianaris' primary practice is UT Health Tyler in Tyler, Texas, part of Ardent Health. Dmand AI also links Dr. Gianaris to 4 hospitals and 1 group practice or clinic.

What is Dr. Thomas Julian Gianaris' office phone number?

The practice phone on file for Dr. Gianaris is (903) 597-0351.

What is Dr. Thomas Julian Gianaris' medical license number?

Dr. Gianaris holds Texas license S7218.

Which hospitals is Dr. Thomas Julian Gianaris affiliated with?

Dr. Gianaris practices at UT Health Tyler in Tyler, Texas. Dr. Gianaris is also affiliated with UT Health North Campus Tyler. Dmand AI links Dr. Gianaris to 4 more hospitals.

What medical group is Dr. Thomas Julian Gianaris part of?

Dr. Gianaris is linked to Tyler Neurosurgical Associates.

Does Dr. Thomas Julian Gianaris accept Medicare?

Yes. CMS data shows Dr. Gianaris billed Medicare for 433 services in 2024, and Dr. Gianaris accepts Medicare assignment.

Does Dr. Thomas Julian Gianaris offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Gianaris as offering telehealth services.

What is Dr. Thomas Julian Gianaris' MIPS score?

Dr. Gianaris' MIPS final score for performance year 2024 is 76 out of 100, reported as part of a group.

Show 10 more questionsShow fewer questions

How many Medicare patients does Dr. Thomas Julian Gianaris see?

CMS counts 205 Medicare patients who saw Dr. Gianaris in 2024, with an average age of 72.

Is Dr. Thomas Julian Gianaris board certified?

Yes. Dr. Gianaris is board certified in neurological surgery by the American Board of Neurological Surgery.

What services does Dr. Thomas Julian Gianaris bill to Medicare?

In 2024, Dr. Gianaris' most billed Medicare services were office visit, established patient (99213), hospital inpatient care (99223) and office visit, new patient (99203).

Where did Dr. Thomas Julian Gianaris go to medical school?

Dr. Gianaris graduated from Indiana University School Of Medicine in 2013.

What drugs does Dr. Thomas Julian Gianaris prescribe most?

In 2024 Medicare Part D data, Dr. Gianaris' most prescribed drugs by claims were Methylprednisolone and Hydrocodone-Acetaminophen.

Has Dr. Thomas Julian Gianaris received payments from drug or device companies?

CMS Open Payments shows $820 in general payments to Dr. Gianaris from 5 companies from 2017 to 2024. The largest total came from Medtronic, Inc.

How long has Dr. Thomas Julian Gianaris been practicing?

Dr. Gianaris graduated from medical school in 2013, 13 years ago.

Does Dr. Thomas Julian Gianaris do research?

Dmand AI links 13 publications to Dr. Gianaris, published from 2013 to 2021.

Who does Dr. Thomas Julian Gianaris publish with?

Dr. Gianaris' most frequent co-authors are Daniel H. Fulkerson, MD (4 shared papers), Nicolas Villelli, MD (2 shared papers) and Nicholas M. Barbaro, MD (1 shared paper).

What insurance does Dr. Thomas Julian Gianaris accept?

Dr. Gianaris is in network with 20 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 13. Check the plan with the practice before a visit.

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