NPPES file of Aug 9, 2026

Mary Beth Slagle, FNP

Family Nurse Practitioner · Norwalk, CT

Mary Beth Slagle, FNP is a family nurse practitioner with a practice address in Norwalk, Connecticut, and NPI 1407158488, issued on Nov 24, 2010. Check the license (Connecticut 13021, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1407158488
Name
Mary Beth Slagle
Credential
FNP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License numbers
13021 CT
0024169090 VA
Self-reported in NPPES; status is on the state search
Practice location
49 Day St, Norwalk, CT 06854
Phone
(203) 854-9292
Enumerated
Nov 24, 2010
Record last updated
Apr 4, 2024
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 49 Day St

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

  1. Jennifer Arscott, DDSGeneral Practice Dentistry1871702480
  2. Caylan Bookman, MDPsychiatry Physician1922744697
  3. Mary Calka, RDHDental Hygienist1073716346
  4. Diana Cardona, DMDGeneral Practice Dentistry1013225341
  5. Jennifer Corridon, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1629483656
  6. Ana Dacosta, R.D.H.Dental Hygienist1972046019

Verify Mary Beth Slagle 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 13021
    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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47% more Medicare Part D claims than the average family nurse practitioner in 2024

1,913 Medicare Part D claims for 261 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims. 31 claims were for opioids.

  1. Mary Slagle1,913
  2. Specialty average1,305

Most prescribed

  1. Atorvastatin Calcium95 claims
  2. Amlodipine Besylate87 claims
  3. Lisinopril66 claims
  4. Gabapentin52 claims
  5. Pantoprazole Sodium51 claims
  6. Albuterol Sulfate Hfa45 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.

Mary Beth Slagle among 2,669 family nurse practitioner records in Connecticut

Mary Beth Slagle, FNP is one of 2,669 family nurse practitioner records with a practice address in Connecticut. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 18% of them.

  • NPI issued2010 · 18% of these records are older, 80% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileNo · 62% of these records are
  • Record last updated2024 · 43% 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 Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

54 family nurse practitioner records list a practice address in Norwalk

They are 54 of the 1,993 NPPES records with a practice address in Norwalk, and 2,669 family nurse practitioner records in Connecticut.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Terri Fleming, FNP-BCNorwalk, CT 068541265916746
  2. Kandree Hicks, APRNNorwalk, CT 068541215169578
  3. Rebecca Kaplan, FNP-BCNorwalk, CT 068541275899346
  4. Garrett Matlick, APRNNorwalk, CT 068541134600232
  5. Barbara McCabe, APRNNorwalk, CT 068541306094396
  6. Alphonse Paolillo, DNP, APRN, FNP-BCNorwalk, CT 068541215642673
  7. Lissette Rivas Siracusa, APRNNorwalk, CT 068541750804316
  8. Marta Sarzynski, APRNNorwalk, CT 068541134753080

Common questions

What is Mary Beth Slagle, FNP's NPI number?

Mary Beth Slagle, FNP's National Provider Identifier (NPI) is 1407158488, issued on Nov 24, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Mary Beth Slagle, FNP located?

The NPPES record lists a practice address at 49 Day St, Norwalk, CT, 06854. Phone: (203) 854-9292. Providers update this record themselves, so call before visiting.

How can I verify Mary Beth Slagle, FNP's license?

NPPES lists Connecticut license number 13021, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.

How much does Mary Beth Slagle, FNP prescribe under Medicare Part D?

In 2024, Mary Beth Slagle, FNP had 1,913 Medicare Part D claims for 261 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.

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.