NPPES file of Aug 9, 2026

Marguerite Lamb

Family Nurse Practitioner · Cromwell, CT

Marguerite Lamb is a family nurse practitioner with a practice address in Cromwell, Connecticut, and NPI 1114326261, issued on Aug 14, 2014. Check the license (Connecticut 005856, 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
1114326261
Name
Marguerite Lamb
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
005856 CT
Self-reported in NPPES; status is on the state search
Practice location
70 Shunpike RD, Cromwell, CT 06416
Phone
(860) 358-5280
Enumerated
Aug 14, 2014
Record last updated
Nov 5, 2025
Fax
(860) 358-8650
Medicare enrollment
Enrolled (PECOS I20141022001518); 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 70 Shunpike RD

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

  1. Daniela Calle, APRNFamily Nurse Practitioner1356905590
  2. Rebekah ComerPrimary Care Nurse Practitioner1730907148
  3. Tyler Ditunno, APRNFamily Nurse Practitioner1497521629
  4. Kristen Donato, DOFamily Medicine Physician1174888390
  5. Sarah Fortin, M.D.Family Medicine Physician1043745714
  6. Malisa Lahtinen, M.DFamily Medicine Physician1346371465

Verify Marguerite Lamb 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 005856
    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

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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51% more Medicare Part D claims than the average family nurse practitioner in 2024

1,976 Medicare Part D claims for 266 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 26 claims were for opioids.

  1. Marguerite Lamb1,976
  2. Specialty average1,305

Most prescribed

  1. Atorvastatin Calcium189 claims
  2. Levothyroxine Sodium85 claims
  3. Rosuvastatin Calcium62 claims
  4. Lisinopril60 claims
  5. Metformin Hcl Er55 claims
  6. Omeprazole53 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 MIPS final score for 2023 (Medicare payment program): 97.3 of 100

The Merit-based Incentive Payment System score is reported for this clinician. 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 score81.7
  2. Costnot scored (reweighted)
  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; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Mhs Primary Care, Inc.Portland, CT

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

Marguerite Lamb among 2,669 family nurse practitioner records in Connecticut

Marguerite Lamb 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 2014, is newer than 29% of them.

  • NPI issued2014 · 29% of these records are older, 67% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2014 · median 2018 among the 1,664 with a school on file
  • Record last updated2025 · 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).

4 family nurse practitioner records list a practice address in Cromwell

They are 4 of the 631 NPPES records with a practice address in Cromwell, and 2,669 family nurse practitioner records in Connecticut.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Daniela Calle, APRNCromwell, CT 064161356905590
  2. Tyler Ditunno, APRNCromwell, CT 064161497521629
  3. Brian Gomes, APRNCromwell, CT 064161669972444
  4. Mallory Breitmaier, FNPColchester, CT 064151265786917
  5. Danielle Grillo, APRNColchester, CT 064151013391101
  6. Jesse Kavumpurath, APRN, FNP-BCColchester, CT 064151427451004
  7. Barbara Pokorny, APRNColchester, CT 064151760495782
  8. Amy Scheel, DNP, APRNColchester, CT 064151437687282

Common questions

What is Marguerite Lamb's NPI number?

Marguerite Lamb's National Provider Identifier (NPI) is 1114326261, issued on Aug 14, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Marguerite Lamb located?

The NPPES record lists a practice address at 70 Shunpike RD, Cromwell, CT, 06416. Phone: (860) 358-5280. Providers update this record themselves, so call before visiting.

How can I verify Marguerite Lamb's license?

NPPES lists Connecticut license number 005856, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.

How much does Marguerite Lamb prescribe under Medicare Part D?

In 2024, Marguerite Lamb had 1,976 Medicare Part D claims for 266 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.

What is Marguerite Lamb's MIPS final score?

The 2023 MIPS final score is 97.3 of 100. 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.