NPPES file of Aug 9, 2026

Leah Paxton Cartmell, LCSW

Social Worker · Boston, MA

Leah Paxton Cartmell, LCSW is a social worker with a practice address in Boston, Massachusetts, and NPI 1265910962, issued on Aug 3, 2018. Check the license (Massachusetts 219464, 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
1265910962
Name
Leah Paxton Cartmell
Credential
LCSW
Primary taxonomy
Social Worker 104100000X
License number
219464 MA
Self-reported in NPPES; status is on the state search
Practice location
23 Joy St Apt 2, Boston, MA 02114
Phone
(248) 766-2502
Enumerated
Aug 3, 2018
Record last updated
Aug 3, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(617) 506-4534
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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Verify Leah Paxton Cartmell 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 219464
    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

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The practice group's MIPS final score for 2023 (Medicare payment program): 93.5 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 score74.2
  2. Costout of 100 · 30%92.3
  3. Promoting interoperabilitynot scored (reweighted)
  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).

Leah Paxton Cartmell among 5,517 social worker records in Massachusetts

Leah Paxton Cartmell, LCSW is one of 5,517 social worker records with a practice address in Massachusetts. 5% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 49% of them.

  • NPI issued2018 · 49% of these records are older, 41% newer
  • In a Medicare fileYes · 5% of these records are
  • In the CMS Doctors and Clinicians fileNo · 8% of these records are
  • Record last updated2018 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 104100000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

463 social worker records list a practice address in Boston

They are 463 of the 41,865 NPPES records with a practice address in Boston, and 5,517 social worker records in Massachusetts.

The 8 social worker records with the nearest ZIP codes

  1. Tylah BrathwaiteBoston, MA 021141740633817
  2. Rose CheneyBoston, MA 021141508906413
  3. Kathleen Chung, LICSWBoston, MA 021141821306846
  4. Lauren Demarco, LICSW, ACHP-SWBoston, MA 021141528550712
  5. Ellen FormanBoston, MA 021141518459296
  6. Karen Fung, LICSWBoston, MA 021141255464483
  7. Carol Goldman, LICSWBoston, MA 021141053417931
  8. Laura Harward, LICSWBoston, MA 021141487039160

Common questions

What is Leah Paxton Cartmell, LCSW's NPI number?

Leah Paxton Cartmell, LCSW's National Provider Identifier (NPI) is 1265910962, issued on Aug 3, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Leah Paxton Cartmell, LCSW located?

The NPPES record lists a practice address at 23 Joy St Apt 2, Boston, MA, 02114. Phone: (248) 766-2502. Providers update this record themselves, so call before visiting.

How can I verify Leah Paxton Cartmell, LCSW's license?

NPPES lists Massachusetts license number 219464, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.

What is Leah Paxton Cartmell, LCSW's MIPS final score?

The 2023 MIPS final score is 93.5 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.