NPPES file of Aug 9, 2026

Diane M. Nezar, CNM

Advanced Practice Midwife · Boston, MA

Diane M. Nezar, CNM is an advanced practice midwife with a practice address in Boston, Massachusetts, and NPI 1366567158, issued on Mar 20, 2007. Check the license (Massachusetts RN177805, as entered in NPPES) with the Massachusetts board that licenses this profession; 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
1366567158
Name
Diane M. Nezar
Credential
CNM
Primary taxonomy
Advanced Practice Midwife 367A00000X
License number
RN177805 MA
Self-reported in NPPES; status is on the state search
Practice location
850 Harrison Avenue, Boston, MA 02118
Phone
(617) 414-2000
Enumerated
Mar 20, 2007
Record last updated
Aug 23, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(617) 414-5798
Medicare enrollment
Enrolled (PECOS I20210707002568); accepts Medicare assignment
Medical or professional school
University Of New Mexico School Of Medicine, 1986
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 850 Harrison Avenue

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

  1. Megan Bair-Merritt, M.D.Pediatrics Physician1104868843
  2. Alexandra Belcher-Obejero-Paz, M.D., M.P.H.Obstetrics & Gynecology Physician1952798704
  3. Mari Bentley, M.D.Family Medicine Physician1043299027
  4. Jessica Brick, MDPediatrics Physician1053687558
  5. Emily Burns, CNPWomen's Health Nurse Practitioner1336807957
  6. Marie Cantave-Ayer, NPFamily Nurse Practitioner1124354691

Verify Diane M. Nezar in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
    Search for license RN177805
    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
Find the Massachusetts 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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The practice group's MIPS final score for 2023 (Medicare payment program): 82.8 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 score88.3
  2. Costout of 100 · 30%69.5
  3. Promoting interoperabilityout of 100 · 25%70.0
  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).

Bills Medicare through one group practice

  1. South Shore Medical Center, Inc.Weymouth, MA

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

Diane M. Nezar among 454 advanced practice midwife records in Massachusetts

Diane M. Nezar, CNM is one of 454 advanced practice midwife records with a practice address in Massachusetts. 48% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 35% of them.

  • NPI issued2007 · 35% of these records are older, 50% newer
  • In a Medicare fileYes · 48% of these records are
  • In the CMS Doctors and Clinicians fileYes · 39% of these records are
  • Graduated1986 · median 2013 among the 177 with a school on file
  • Record last updated2021 · 65% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 367A00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Advanced Practice Midwife providers in Massachusetts

There are 454 advanced practice midwife records in Massachusetts.

The 8 advanced practice midwife records with the nearest ZIP codes

  1. Somphit Chinkam, CNMBoston, MA 021181063498434
  2. Nancy Davidson, CNMBoston, MA 021181083754857
  3. Jean Ewan, CNMBoston, MA 021181023094497
  4. Cecilia Girard, CNMBoston, MA 021181831175207
  5. Monica Joyce, CNMBoston, MA 021181336175389
  6. Marie Kourtelidis, CNMBoston, MA 021181649256017
  7. Ann Massed, CNMBoston, MA 021181326024621
  8. Julie Mottl-Santiago, CNMBoston, MA 021181487630711

Common questions

What is Diane M. Nezar, CNM's NPI number?

Diane M. Nezar, CNM's National Provider Identifier (NPI) is 1366567158, issued on Mar 20, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Diane M. Nezar, CNM located?

The NPPES record lists a practice address at 850 Harrison Avenue, Boston, MA, 02118. Phone: (617) 414-2000. Providers update this record themselves, so call before visiting.

How can I verify Diane M. Nezar, CNM's license?

NPPES lists Massachusetts license number RN177805, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.

What is Diane M. Nezar, CNM's MIPS final score?

The 2023 MIPS final score is 82.8 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.