NPPES file of Aug 9, 2026

Jill Cassells, CNM

Advanced Practice Midwife · Willimantic, CT

Jill Cassells, CNM is an advanced practice midwife with a practice address in Willimantic, Connecticut, and NPI 1912006602, issued on Sep 21, 2006. Check the license (Connecticut 000213, as entered in NPPES) with the Connecticut 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 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1912006602
Name
Jill Cassells
Credential
CNM
Primary taxonomy
Advanced Practice Midwife 367A00000X
License number
000213 CT
Self-reported in NPPES; status is on the state search
Practice location
1548 Main St, Willimantic, CT 06226
Phone
(860) 423-0336
Enumerated
Sep 21, 2006
Record last updated
Mar 28, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(860) 423-8428
Medicare enrollment
Enrolled (PECOS I20031124000130); accepts Medicare assignment
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 1548 Main St

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

  1. Fran Ia Bowen, RNRegistered Nurse1629099148
  2. Lisa-Marie Griffiths, APRNWomen's Health Nurse Practitioner1184799686
  3. Meghan Tarvis, RNWomen's Health Nurse Practitioner1255179438

Verify Jill Cassells in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
    Search for license 000213
    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 Connecticut license search

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3% more Medicare Part D claims than the average advanced practice midwife in 2024

74 Medicare Part D claims for 39 beneficiaries, against an average of 72 among the 2,776 providers of this specialty who prescribed in Part D.

  1. Jill Cassells74
  2. Specialty average72

Most prescribed

  1. Norethindrone12 claims
  2. Valacyclovir12 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): 89.9 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 score93.2
  2. Costout of 100 · 30%73.0
  3. Promoting interoperabilityout of 100 · 25%100.0
  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. Yale UniversityNew Haven, CT

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

Advanced Practice Midwife providers in Connecticut

There are 251 advanced practice midwife records in Connecticut.

Other advanced practice midwife records in Connecticut

  1. Maura Aaberg, C.N.M., W.H.N.P.Manchester, CT1255630869
  2. Marwa Abdinoor, CNMWest Hartford, CT1639092802
  3. Sarah Adkins, CNM, MSNBranford, CT1740990308
  4. Jennifer Ahimsa, CNMHartford, CT1821191990
  5. Jennifer Aiken, CNMDanbury, CT1710660519
  6. Melanie Albright, C.N.M.Trumbull, CT1609892058
  7. Laura Alsen Piscioneri, CNMManchester, CT1205933462
  8. Susan Alward, CNMWaterbury, CT1942202890
  9. Esla Aminlewis, CNMNorwalk, CT1205807062
  10. Emily Archer, CNM, WHNP-BCHartford, CT1063896017

Common questions

What is Jill Cassells, CNM's NPI number?

Jill Cassells, CNM's National Provider Identifier (NPI) is 1912006602, issued on Sep 21, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Jill Cassells, CNM located?

The NPPES record lists a practice address at 1548 Main St, Willimantic, CT, 06226. Phone: (860) 423-0336. Providers update this record themselves, so call before visiting.

How can I verify Jill Cassells, CNM's license?

NPPES lists Connecticut license number 000213, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.

How much does Jill Cassells, CNM prescribe under Medicare Part D?

In 2024, Jill Cassells, CNM had 74 Medicare Part D claims for 39 beneficiaries; the average among advanced practice midwife prescribers was 72. Part D covers Medicare prescriptions only.

What is Jill Cassells, CNM's MIPS final score?

The 2023 MIPS final score is 89.9 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.