NPPES file of Aug 9, 2026

Margot Herwood Dayton, MD

Pediatrics Physician · Hartford, CT

Margot Herwood Dayton, MD is a pediatrics physician with a practice address in Hartford, Connecticut, and NPI 1386829893, issued on Jan 2, 2008. Check the license (Connecticut NONE - RESIDENT, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1386829893
Name
Margot Herwood Dayton
Credential
MD
Primary taxonomy
Pediatrics Physician 208000000X
License number
NONE - RESIDENT CT
Self-reported in NPPES; status is on the state search
Practice location
282 Washington St, Hartford, CT 06106
Phone
(860) 545-9000
Enumerated
Jan 2, 2008
Record last updated
Jan 2, 2008 (not updated in 18 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 282 Washington St

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

  1. Barbara AdamsPediatric Nurse Practitioner1962663583
  2. Ariana Adamski-Larson, MDStudent in an Organized Health Care Education/Training Program1518655083
  3. Taylor Aglio, M.D.Pediatric Hematology & Oncology Physician1285015453
  4. Sabina Ahmad, M.D.Pediatric Pulmonology Physician1134476658
  5. Neveen Al-Said, DOPediatrics Physician1851978548
  6. Paula Algranati, MDPediatrics Physician1467424317

Verify Margot Herwood Dayton in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining Board
    Search for license NONE - RESIDENT
    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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Industry payments in 2024: $27.92

1 payment: debt forgiveness; the largest payer was Baxter Healthcare. The 21,580 providers of this specialty with any payment received $842.05 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Margot Dayton$27.92
  2. Specialty average$842.05

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

Margot Herwood Dayton among 1,043 pediatrics physician records in Connecticut

Margot Herwood Dayton, MD is one of 1,043 pediatrics physician records with a practice address in Connecticut. 32% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 63% of them.

  • NPI issued2008 · 63% of these records are older, 33% newer
  • In a Medicare fileYes · 32% of these records are
  • In the CMS Doctors and Clinicians fileNo · 9% of these records are
  • Record last updated2008 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208000000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

114 pediatrics physician records list a practice address in Hartford

They are 114 of the 6,317 NPPES records with a practice address in Hartford, and 1,043 pediatrics physician records in Connecticut.

The 8 pediatrics physician records with the nearest ZIP codes

  1. Paula Algranati, MDHartford, CT 061061467424317
  2. Leonard Banco, MDHartford, CT 061061093787863
  3. Robert Englander, MDHartford, CT 061061821061540
  4. Jacqueline Hartzler, MDHartford, CT 061061336112051
  5. Richard Johnson, MDHartford, CT 061061508830837
  6. David Krol, MD, MPHHartford, CT 061061710963863
  7. Nina Livingston, MDHartford, CT 061061932174380
  8. Margaret McLaren, MDHartford, CT 061061649245184

Common questions

What is Margot Herwood Dayton, MD's NPI number?

Margot Herwood Dayton, MD's National Provider Identifier (NPI) is 1386829893, issued on Jan 2, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Margot Herwood Dayton, MD located?

The NPPES record lists a practice address at 282 Washington St, Hartford, CT, 06106. Phone: (860) 545-9000. Providers update this record themselves, so call before visiting.

How can I verify Margot Herwood Dayton, MD's license?

NPPES lists Connecticut license number NONE - RESIDENT, 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.

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.