NPPES file of Aug 9, 2026

Dario Zagar, M.D.

Neurology Physician · Fairfield, CT

Dario Zagar, M.D. is a neurology physician with a practice address in Fairfield, Connecticut, and NPI 1093773756, issued on May 3, 2006. Check the license (Connecticut 042359, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1093773756
Name
Dario Zagar
Credential
M.D.
Primary taxonomy
Neurology Physician 2084N0400X
License number
042359 CT
Self-reported in NPPES; status is on the state search
Practice location
75 Kings Highway Cutoff, Fairfield, CT 06824
Phone
(203) 333-1133
Enumerated
May 3, 2006
Record last updated
Aug 1, 2008 (not updated in 18 years: call before relying on the address or phone)
Medicaid ID
001423590 CT
Medicare enrollment
Enrolled (PECOS I20040520000982); accepts Medicare assignment
Medical or professional school
Albert Einstein College Of Medicine Of Yeshiva University, 1999
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 75 Kings Highway Cutoff

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Andrew BaxterVascular Surgery Physician1124346481
  2. Nicholas Blondin, M.D.Neurology Physician1699940551
  3. Karen Brown, PA-CMedical Physician Assistant1417191503
  4. Danielle Centone, PA-CMedical Physician Assistant1821546607
  5. Bozena Czapka, P.A.Medical Physician Assistant1184723850
  6. Deborah Del Vecchio-Scully, NCC, LPCProfessional Counselor1578761920

Verify Dario Zagar in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining Board
    Search for license 042359
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Connecticut license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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2.5 times the Medicare Part D claims of the average neurology physician in 2024

3,434 Medicare Part D claims for 613 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 28 claims were for opioids.

  1. Dario Zagar3,434
  2. Specialty average1,370

Most prescribed

  1. Donepezil Hcl227 claims
  2. Gabapentin204 claims
  3. Carbidopa-Levodopa189 claims
  4. Duloxetine Hcl138 claims
  5. Levetiracetam114 claims
  6. Memantine Hcl103 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The practice group's MIPS final score for 2023 (Medicare payment program): 73.6 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score75.8
  2. Costout of 100 · 30%51.4
  3. Promoting interoperabilityout of 100 · 25%74.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $21.44

1 payment: food and beverage; the largest payer was Abbvie Inc. The 10,858 providers of this specialty with any payment received $8,318.07 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Dario Zagar$21.44
  2. Specialty average$8,318.07

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Rehabilitation Associates IncFairfield, CT
  2. Yale UniversityNew Haven, CT

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Dario Zagar among 345 neurology physician records in Connecticut

Dario Zagar, M.D. is one of 345 neurology physician records with a practice address in Connecticut. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 11% of them.

  • NPI issued2006 · 11% of these records are older, 63% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated1999 · median 2009 among the 216 with a school on file
  • Record last updated2008 · 49% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Neurology Physician providers in Connecticut

There are 345 neurology physician records in Connecticut.

The 8 neurology physician records with the nearest ZIP codes

  1. Nicholas Blondin, M.D.Fairfield, CT 068241699940551
  2. Cara Crook, PHDFairfield, CT 068241194546747
  3. P. Christopher Gottschalk, M.D.Fairfield, CT 068241831131176
  4. Jeffrey Gross, M.D.Fairfield, CT 068241770549180
  5. Srinath Kadimi, M.D.Fairfield, CT 068241730144734
  6. Peter McAllister, M.D.Fairfield, CT 068241033176896
  7. Thomas Toothaker, M.D.Fairfield, CT 068241477705382
  8. David Hahn, MDGreenwich, CT 068301053625459

Common questions

What is Dario Zagar, M.D.'s NPI number?

Dario Zagar, M.D.'s National Provider Identifier (NPI) is 1093773756, issued on May 3, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Dario Zagar, M.D. located?

The NPPES record lists a practice address at 75 Kings Highway Cutoff, Fairfield, CT, 06824. Phone: (203) 333-1133. Providers update this record themselves, so call before visiting.

How can I verify Dario Zagar, M.D.'s license?

NPPES lists Connecticut license number 042359, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Dario Zagar, M.D. prescribe under Medicare Part D?

In 2024, Dario Zagar, M.D. had 3,434 Medicare Part D claims for 613 beneficiaries; the average among neurology physician prescribers was 1,370. Part D covers Medicare prescriptions only.

What is Dario Zagar, M.D.'s MIPS final score?

The 2023 MIPS final score is 73.6 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.