NPPES file of Aug 9, 2026

Deborah Esrig Simon, M.D.

Pediatrics Physician · Acton, MA

Deborah Esrig Simon, M.D. is a pediatrics physician with a practice address in Acton, Massachusetts, and NPI 1295748788, issued on Aug 14, 2006. Check the license (Massachusetts 155809, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1295748788
Name
Deborah Esrig Simon
Credential
M.D.
Primary taxonomy
Pediatrics Physician 208000000X
License number
155809 MA
Self-reported in NPPES; status is on the state search
Practice location
321 Main St, Acton, MA 01720
Phone
(978) 635-8700
Enumerated
Aug 14, 2006
Record last updated
Oct 24, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(978) 635-8925
Medicaid ID
0119270 MA
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 321 Main St

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

  1. Christopher Bechtel, NPNurse Practitioner1144578626
  2. Meryl BergerNurse Practitioner1922600220
  3. Louis Berk, M.D.Family Medicine Physician1730501875
  4. Elizabeth Berman, RDN, LDNRegistered Dietitian1679949143
  5. Christine Brown, M.D.Internal Medicine Physician1588861660
  6. Samuel BrownClinical Social Worker1336576065

Verify Deborah Esrig Simon in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
    Search for license 155809
    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 Massachusetts license search

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The practice group's MIPS final score for 2023 (Medicare payment program): 87.1 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 score87.0
  2. Costout of 100 · 30%70.7
  3. Promoting interoperabilityout of 100 · 25%99.0
  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).

Deborah Esrig Simon among 2,628 pediatrics physician records in Massachusetts

Deborah Esrig Simon, M.D. is one of 2,628 pediatrics physician records with a practice address in Massachusetts. 25% 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 16% of them.

  • NPI issued2006 · 16% of these records are older, 48% newer
  • In a Medicare fileYes · 25% of these records are
  • In the CMS Doctors and Clinicians fileNo · 12% of these records are
  • Record last updated2014 · 63% 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 Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

14 pediatrics physician records list a practice address in Acton

They are 14 of the 556 NPPES records with a practice address in Acton, and 2,628 pediatrics physician records in Massachusetts.

The 8 pediatrics physician records with the nearest ZIP codes

  1. Matthew Chamberlain, MDActon, MA 017201760061279
  2. Mark Cohen, M.D.Acton, MA 017201396730818
  3. Christopher Cooper, M.D.Acton, MA 017201477542132
  4. Jasmin Darling, M.D.Acton, MA 017201962882779
  5. Elayne Feinsod, M.D.Acton, MA 017201942425301
  6. Emily Harder, M.D.Acton, MA 017201619177698
  7. Alexandra Iannini, MDActon, MA 017201669433603
  8. John Jakimczyk, M.D.Acton, MA 017201477542967

Common questions

What is Deborah Esrig Simon, M.D.'s NPI number?

Deborah Esrig Simon, M.D.'s National Provider Identifier (NPI) is 1295748788, issued on Aug 14, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Deborah Esrig Simon, M.D. located?

The NPPES record lists a practice address at 321 Main St, Acton, MA, 01720. Phone: (978) 635-8700. Providers update this record themselves, so call before visiting.

How can I verify Deborah Esrig Simon, M.D.'s license?

NPPES lists Massachusetts license number 155809, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

What is Deborah Esrig Simon, M.D.'s MIPS final score?

The 2023 MIPS final score is 87.1 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.