NPPES file of Aug 9, 2026

William Louis Schneider, NP-C, RN

Family Nurse Practitioner · Somerville, MA

William Louis Schneider, NP-C, RN is a family nurse practitioner with a practice address in Somerville, Massachusetts, and NPI 1952466740, issued on Dec 22, 2006. Check the license (Massachusetts F0898362, 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 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1952466740
Name
William Louis Schneider
Credential
NP-C, RN
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License numbers
F0898362 MA
202114 MA
Self-reported in NPPES; status is on the state search
Practice location
26 Central St, Somerville, MA 02143
Phone
(617) 591-6454
Enumerated
Dec 22, 2006
Record last updated
Jul 31, 2026
Fax
(617) 591-6405
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 26 Central St

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

  1. Mark Albanese, M.D.Addiction Psychiatry Physician1366475675
  2. Deidre Alessio, APRNPrimary Care Nurse Practitioner1487721882
  3. Cassie AponasRegistered Nurse1447813472
  4. Christine Aquilino, LICSWClinical Social Worker1386714558
  5. Linda Arnade, M.P.H.Health Educator1003264391
  6. Herbert BentonClinical Social Worker1518442854

Verify William Louis Schneider 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 F0898362
    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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2.9 times the Medicare Part D claims of the average family nurse practitioner in 2024

3,735 Medicare Part D claims for 221 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 1% of claims.

  1. William Schneider3,735
  2. Specialty average1,305

Most prescribed

  1. Clonazepam384 claims
  2. Trazodone Hcl313 claims
  3. Quetiapine Fumarate265 claims
  4. Sertraline Hcl233 claims
  5. Lorazepam220 claims
  6. Gabapentin158 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): 86.3 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 score78.8
  2. Costout of 100 · 30%58.7
  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).

William Louis Schneider among 4,724 family nurse practitioner records in Massachusetts

William Louis Schneider, NP-C, RN is one of 4,724 family nurse practitioner records with a practice address in Massachusetts. 71% 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 2% of them.

  • NPI issued2006 · 2% of these records are older, 91% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileNo · 57% of these records are
  • Record last updated2026 · 42% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

29 family nurse practitioner records list a practice address in Somerville

They are 29 of the 1,860 NPPES records with a practice address in Somerville, and 4,724 family nurse practitioner records in Massachusetts.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Allison Belmonte, , CPN, FNP, CNSomerville, MA 021431801141668
  2. Tamara Homicil, MSN, APRN, FNPSomerville, MA 021431164768321
  3. Elizabeth Pearce, FNP-BC, RNSomerville, MA 021431245028406
  4. Brenda Rogers, A.P.R.N.Somerville, MA 021431063613081
  5. Mary Scanlon, RNCSSomerville, MA 021431841375607
  6. Michelle Clarke, FNP-BCSomerville, MA 021441104187798
  7. Allie Collignon, CNPSomerville, MA 021441710280391
  8. Carla CollinsSomerville, MA 021441790064442

Common questions

What is William Louis Schneider, NP-C, RN's NPI number?

William Louis Schneider, NP-C, RN's National Provider Identifier (NPI) is 1952466740, issued on Dec 22, 2006. An NPI identifies a provider in billing; it is not a license.

Where is William Louis Schneider, NP-C, RN located?

The NPPES record lists a practice address at 26 Central St, Somerville, MA, 02143. Phone: (617) 591-6454. Providers update this record themselves, so call before visiting.

How can I verify William Louis Schneider, NP-C, RN's license?

NPPES lists Massachusetts license number F0898362, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.

How much does William Louis Schneider, NP-C, RN prescribe under Medicare Part D?

In 2024, William Louis Schneider, NP-C, RN had 3,735 Medicare Part D claims for 221 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.

What is William Louis Schneider, NP-C, RN's MIPS final score?

The 2023 MIPS final score is 86.3 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.