Dr. Nathan T. Tagg, MD

  • Durham, NC
  • Neurologist
NPI1477541480PAC ID4486745411
Medicare services, 2024
1,182
Medicare patients, 2024
323
Part D claims, 2024
242
Publications
10
Hospital affiliations
2
Practice address
2301 Erwin Rd, Durham, NC 27705
Practice phone
Call (919) 684-8111
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

Duke University Hospital

Hospital · Durham, North Carolina

See all 4 affiliations

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Dr. Nathan T. Tagg is a neurologist in Durham, North Carolina

Dr. Tagg practices at Duke University Hospital in Durham, North Carolina, part of Duke University.

Dr. Tagg's NPI, 1477541480, was assigned on October 12, 2005. Dr. Tagg graduated from University of Iowa, RJ & L Carver College of Medicine in 2001. Dr. Tagg holds North Carolina license 2021-00163.

NPI and contact details
Medicare PAC ID
4486745411
NPI enumeration date
October 12, 2005
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(919) 684-8111
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
51
Medical school graduation
2001

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

Dr. Nathan T. Tagg practices at Duke University Hospital in Durham, North Carolina

Dr. Tagg's primary practice is Duke University Hospital, at 2301 Erwin Rd, Durham, NC 27705 in Durham County. The practice phone is (919) 684-8111.

Source: Dmand AI Affiliation Data

Dr. Nathan T. Tagg is affiliated with 3 sites of care and 1 medical group

Dr. Tagg's primary practice is Duke University Hospital in Durham, North Carolina, part of Duke University. Dr. Tagg is also affiliated with Duke Regional Hospital. The medical group on file is Duke Health Integrated Practice. Dmand AI also links Dr. Tagg to 1 more group practice or clinic, named with a free account.

See all 4 affiliations for Dr. Tagg

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

Dmand AI tracks the EHR system at Dr. Nathan T. Tagg's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Tagg practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Duke University HospitalAvailable with a free account
+2 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Nathan T. Tagg is one of 543 neurologists in North Carolina

Neurology is Dr. Tagg's primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Dmand AI has Dr. Tagg's licenses on file in 5 states: North Carolina, Iowa, Indiana, Maryland and Washington.

Specialties and state licenses

  • Neurology, North CarolinaPrimaryLicense 2021-00163 · taxonomy 2084N0400X
  • Iowa licenseLicense 37178
  • Indiana licenseLicense 01057675A
  • Maryland licenseLicense D72841
  • Washington licenseLicense 60193652

Neurologists near Dr. Tagg

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. Nathan T. Tagg billed Medicare for 1,182 services in 2024

CMS data shows 1,182 Medicare services from Dr. Tagg across 9 procedure codes in 2024, for 323 Medicare patients. Medicare paid $52,607 for them.

Medicare services, 20241,182
Medicare patients323
Paid by Medicare$52,607
Procedure codes9

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

  • 2023
  • 2024
Tests and treatments
2023: 4802024: 4702%
Office and hospital visits
2023: 3942024: 3599%
Other services
2023: 02024: 321
Surgery
2023: 132024: 32146%

Where Dr. Tagg's Medicare services took place, 2024

  • In an office1,14497%
  • In a facility383%

Dr. Tagg compared with the North Carolina median for neurologists, 2024

  • Dr. Tagg
  • North Carolina median
Medicare services
1,182vs 3503.4 times
Medicare patients
323vs 18674% above
Part D claims
143vs 55074% below

Medians across 528 neurologists in North Carolina with Dmand AI profiles that report each measure.

Dr. Tagg'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. Tagg

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

Dr. Nathan T. Tagg treated 323 Medicare patients in 2024, average age 71

CMS counts 323 Medicare patients who saw Dr. Tagg in 2024. The largest group is 65 to 74, with 149 patients. 75% of them have high blood pressure, and 73% have high cholesterol. 8% are also on Medicaid. Their average risk score is 1.30, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Tagg's median patient age at 67, with 63% women.

Medicare patients, 2024323
Average age71
Average risk score1.30
Also on Medicaid8%

Dr. Tagg's Medicare patients by age, 2024

Dr. Tagg's Medicare patients by sex, 2024

  • Women18658%
  • Men13742%

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

  1. High blood pressure75%
  2. High cholesterol73%
  3. Arthritis51%
  4. Diabetes34%
  5. Chronic kidney disease30%
  6. Mood disorders30%
  7. Anxiety29%
  8. Depression28%

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

Dr. Tagg's patients across all payers

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

Patient panel by age, all payers

Median age 67

Patient panel by sex, all payers

  • Women63%
  • Men36%

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

Dr. Nathan T. Tagg wrote 242 Medicare Part D claims in 2024

In 2024, Dr. Tagg wrote 242 Medicare Part D claims for 63 patients. 82% of them were for generic drugs. CMS names the drug for 143 of them, across 7 drugs with 11 or more claims each, at $118,672 in total drug cost. In 2023, CMS named 80 claims across 4 drugs.

Part D claims, 2024242
Drugs named by CMS7
Total drug cost$118,672
Part D patients63

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

  • Generic198 claims82%
  • Brand-name and other44 claims18%

Dr. Tagg'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: 802024: 14379%

Drugs named by CMS: 7 in 2024, 4 in 2023.

See all prescribing by Dr. Tagg

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. Nathan T. Tagg offers telehealth to Medicare patients

Dr. Tagg accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Tagg as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Dr. Nathan T. Tagg has 10 publications on record

Dmand AI links 10 papers to Dr. Tagg, published from 2017 to 2025. 2017 was the busiest year, with 3. The most frequent topics are Autoantibodies, Magnetic Resonance Imaging and Optic Neuritis. Dr. Tagg has published most often in J Neurol Sci. Dr. Tagg's most frequent co-authors are Eva Chou, MD, Irene Claudia Maria Cortese, MD and Bruce James Derrick, MD.

Papers10
Years published2017 to 2025

Dr. Tagg's papers by year, 2017 to 2025

Topics Dr. Tagg writes about most

  • Autoantibodies
  • Magnetic Resonance Imaging
  • Optic Neuritis
  • Rituximab

Dr. Tagg's most frequent co-authors

Recent publications by Dr. Tagg

See all 10 publications and co-authors

See who Dr. Tagg researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Tagg 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. Nathan T. Tagg received $623 in industry payments from 2018 to 2024

CMS Open Payments shows 9 general payments to Dr. Tagg from 3 drug and device companies from 2018 to 2024. Education make up the largest share, 100% of the total. Alexion Pharmaceuticals, Inc. paid the most, $500.

General payments to Dr. Tagg by program year, 2018 to 2024

Companies that paid Dr. Tagg the most, 2018 to 2024

Share is of all general payments to this clinician.

See all payments to Dr. Tagg

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

Dr. Nathan T. Tagg graduated from University of Iowa, RJ & L Carver College of Medicine

Dr. Tagg graduated from University of Iowa, RJ & L Carver College of Medicine in 2001.

  1. Medical schoolUniversity of Iowa, RJ & L Carver College of Medicine

Source: Dmand AI Professional Profile Data

Sources for Dr. Nathan T. Tagg'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)
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
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. Nathan T. Tagg

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. Nathan T. Tagg's NPI number?

Dr. Nathan T. Tagg's NPI number is 1477541480. It was assigned on October 12, 2005, and it is active in the NPI Registry.

What kind of doctor is Dr. Nathan T. Tagg?

Dr. Nathan T. Tagg is a neurologist in Durham, North Carolina. The primary specialty in the NPI Registry is Neurology Physician (taxonomy code 2084N0400X).

Where does Dr. Nathan T. Tagg practice?

Dr. Tagg practices at 2301 Erwin Rd, Durham, NC 27705. Dr. Tagg's primary practice is Duke University Hospital in Durham, North Carolina, part of Duke University. Dmand AI also links Dr. Tagg to 1 group practice or clinic.

What is Dr. Nathan T. Tagg's office phone number?

The practice phone on file for Dr. Tagg is (919) 684-8111.

What is Dr. Nathan T. Tagg's medical license number?

Dr. Tagg holds North Carolina license 2021-00163, one of the licenses on file in 5 states.

Which states has Dr. Nathan T. Tagg been licensed in?

Dmand AI has state licenses on file for Dr. Tagg in North Carolina, Iowa, Indiana, Maryland and Washington.

Which hospitals is Dr. Nathan T. Tagg affiliated with?

Dr. Tagg practices at Duke University Hospital in Durham, North Carolina. Dr. Tagg is also affiliated with Duke Regional Hospital.

What medical group is Dr. Nathan T. Tagg part of?

Dr. Tagg is linked to Duke Health Integrated Practice.

Does Dr. Nathan T. Tagg accept Medicare?

Yes. CMS data shows Dr. Tagg billed Medicare for 1,182 services in 2024, and Dr. Tagg accepts Medicare assignment.

Does Dr. Nathan T. Tagg offer telehealth?

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

Show 8 more questionsShow fewer questions

How many Medicare patients does Dr. Nathan T. Tagg see?

CMS counts 323 Medicare patients who saw Dr. Tagg in 2024, with an average age of 71.

What services does Dr. Nathan T. Tagg bill to Medicare?

In 2024, Dr. Tagg's most billed Medicare services were medicare service (G2211), eye exam or test (92083) and office visit, established patient (99214).

Where did Dr. Nathan T. Tagg go to medical school?

Dr. Tagg graduated from University of Iowa, RJ & L Carver College of Medicine in 2001.

What drugs does Dr. Nathan T. Tagg prescribe most?

In 2024 Medicare Part D data, Dr. Tagg's most prescribed drugs by claims were Pyridostigmine Bromide, Prednisone and Gabapentin.

Has Dr. Nathan T. Tagg received payments from drug or device companies?

CMS Open Payments shows $623 in general payments to Dr. Tagg from 3 companies from 2018 to 2024. The largest total came from Alexion Pharmaceuticals, Inc.

How long has Dr. Nathan T. Tagg been practicing?

Dr. Tagg graduated from medical school in 2001, 25 years ago.

Does Dr. Nathan T. Tagg do research?

Dmand AI links 10 publications to Dr. Tagg, published from 2017 to 2025.

Who does Dr. Nathan T. Tagg publish with?

Dr. Tagg's most frequent co-authors are Eva Chou, MD (1 shared paper), Irene Claudia Maria Cortese, MD (1 shared paper) and Bruce James Derrick, MD (1 shared paper).

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