NPPES file of Aug 9, 2026

Shauna Lynn Littlefield, ACNPC-AG, RNFA

Acute Care Nurse Practitioner · Belfast, ME

Shauna Lynn Littlefield, ACNPC-AG, RNFA is an acute care nurse practitioner with a practice address in Belfast, Maine, and NPI 1003482522, issued on Jun 3, 2021. Check the license (Maine CNP211206, as entered in NPPES) with the Maine 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
1003482522
Name
Shauna Lynn Littlefield
Credential
ACNPC-AG, RNFA
Primary taxonomy
Acute Care Nurse Practitioner 363LA2100X
License number
CNP211206 ME
Self-reported in NPPES; status is on the state search
Practice location
16 Fahy St Ste 202, Belfast, ME 04915
Phone
(207) 505-4603
Enumerated
Jun 3, 2021
Record last updated
May 10, 2023
Medicare enrollment
Enrolled (PECOS I20210707003731); accepts Medicare assignment
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 16 Fahy St Ste 202

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

  1. Lauren Slattery, MDSurgery Physician1649777467

Verify Shauna Lynn Littlefield in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Maine board licenses this profession
    Search for license CNP211206
    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 Maine license search

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82% fewer Medicare Part D claims than the average acute care nurse practitioner in 2024

106 Medicare Part D claims for 62 beneficiaries, against an average of 594 among the 13,133 providers of this specialty who prescribed in Part D. 38 claims were for opioids.

  1. Shauna Littlefield106
  2. Specialty average594

Most prescribed

  1. Oxycodone Hcl32 claims
  2. Famotidine19 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): 98.1 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 score86.1
  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. MainehealthPortland, ME

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

Shauna Lynn Littlefield among 167 acute care nurse practitioner records in Maine

Shauna Lynn Littlefield, ACNPC-AG, RNFA is one of 167 acute care nurse practitioner records with a practice address in Maine. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 39% of them.

  • NPI issued2021 · 39% of these records are older, 56% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 71% of these records are
  • Graduated2021 · median 2021 among the 118 with a school on file
  • Record last updated2023 · 23% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2100X and a Maine practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Acute Care Nurse Practitioner providers in Maine

There are 167 acute care nurse practitioner records in Maine.

The 8 acute care nurse practitioner records with the nearest ZIP codes

  1. Jessica Norton, NPAlbion, ME 049101053117770
  2. Sierra Bivighouse, AGACNPFarmington, ME 049381912894585
  3. Carley Fenning, AGACNP-BCFarmington, ME 049381275415424
  4. Maureen Lepage, ACNPFarmington, ME 049381508632183
  5. Nicole Achorn, AGACNP-BCRockport, ME 048561326816281
  6. Melissa Cowley Perry, FNP-C, ACNP-AGPresque Isle, ME 047691356112965
  7. Shannon Flewelling, AGACNP-BCPresque Isle, ME 047691306565106
  8. Sarah Buydos, APRNCalais, ME 046191366926693

Common questions

What is Shauna Lynn Littlefield, ACNPC-AG, RNFA's NPI number?

Shauna Lynn Littlefield, ACNPC-AG, RNFA's National Provider Identifier (NPI) is 1003482522, issued on Jun 3, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Shauna Lynn Littlefield, ACNPC-AG, RNFA located?

The NPPES record lists a practice address at 16 Fahy St Ste 202, Belfast, ME, 04915. Phone: (207) 505-4603. Providers update this record themselves, so call before visiting.

How can I verify Shauna Lynn Littlefield, ACNPC-AG, RNFA's license?

NPPES lists Maine license number CNP211206, as entered by the provider. Search the Maine board that licenses this profession; the NPPES record confirms identity only.

How much does Shauna Lynn Littlefield, ACNPC-AG, RNFA prescribe under Medicare Part D?

In 2024, Shauna Lynn Littlefield, ACNPC-AG, RNFA had 106 Medicare Part D claims for 62 beneficiaries; the average among acute care nurse practitioner prescribers was 594. Part D covers Medicare prescriptions only.

What is Shauna Lynn Littlefield, ACNPC-AG, RNFA's MIPS final score?

The 2023 MIPS final score is 98.1 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.