NPPES file of Aug 9, 2026

Hillary F. Mallette, LCSW-C

Clinical Social Worker · Frederick, MD

Hillary F. Mallette, LCSW-C is a clinical social worker with a practice address in Frederick, Maryland, and NPI 1124688205, issued on Jun 19, 2019. Check the license (Maryland 20581, as entered in NPPES) with the Maryland 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
1124688205
Name
Hillary F. Mallette
Credential
LCSW-C
Primary taxonomy
Clinical Social Worker 1041C0700X
License number
20581 MD
Self-reported in NPPES; status is on the state search
Practice location
604 Solarex CT Unit 201, Frederick, MD 21703
Phone
(301) 663-8263
Enumerated
Jun 19, 2019
Record last updated
Jun 19, 2019 (not updated in 7 years: call before relying on the address or phone)
Fax
(301) 682-5326
Medicare enrollment
Enrolled (PECOS I20210602000024); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 604 Solarex CT Unit 201

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

  1. Rebecca BiggsClinical Social Worker1871176156
  2. Kirstin Birmingham, LCSW-CClinical Social Worker1255808978
  3. Tammy Blake, LCSW-CClinical Social Worker1225520893
  4. Beronica Bonilla, LCSW-CClinical Social Worker1255695110
  5. Christopher Carr, LCSW-CClinical Social Worker1215593504
  6. Alexandra Chinn, LMSWSocial Worker1013645423

Verify Hillary F. Mallette in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Maryland board licenses this profession
    Search for license 20581
    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 Maryland 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): 84.8 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 score59.0
  2. Costout of 100 · 30%92.8
  3. Promoting interoperabilityout of 100 · 25%77.0
  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. Mosaic Community Services, IncFrederick, MD

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

Hillary F. Mallette among 9,007 clinical social worker records in Maryland

Hillary F. Mallette, LCSW-C is one of 9,007 clinical social worker records with a practice address in Maryland. 11% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 64% of them.

  • NPI issued2019 · 64% of these records are older, 30% newer
  • In a Medicare fileYes · 11% of these records are
  • In the CMS Doctors and Clinicians fileYes · 19% of these records are
  • Graduated2014 · median 2006 among the 1,685 with a school on file
  • Record last updated2019 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1041C0700X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

348 clinical social worker records list a practice address in Frederick

They are 348 of the 3,981 NPPES records with a practice address in Frederick, and 9,007 clinical social worker records in Maryland.

The 8 clinical social worker records with the nearest ZIP codes

  1. Amy Altman, LCSW-CFrederick, MD 217031770640435
  2. Marta Archer, MSWFrederick, MD 217031124182803
  3. William Clare, LCSW-CFrederick, MD 217031720177769
  4. Anne Jenkins, LCSW-CFrederick, MD 217031154541126
  5. Jennifer Jordan, LCSW-CFrederick, MD 217031750424982
  6. Patricia Lamb, LCSW-CFrederick, MD 217031689738379
  7. Yasmin Lluveras, LCSW-CFrederick, MD 217031992914386
  8. Lewis Nordan, LCSW-CFrederick, MD 217031174664924

Common questions

What is Hillary F. Mallette, LCSW-C's NPI number?

Hillary F. Mallette, LCSW-C's National Provider Identifier (NPI) is 1124688205, issued on Jun 19, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Hillary F. Mallette, LCSW-C located?

The NPPES record lists a practice address at 604 Solarex CT Unit 201, Frederick, MD, 21703. Phone: (301) 663-8263. Providers update this record themselves, so call before visiting.

How can I verify Hillary F. Mallette, LCSW-C's license?

NPPES lists Maryland license number 20581, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.

What is Hillary F. Mallette, LCSW-C's MIPS final score?

The 2023 MIPS final score is 84.8 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.