NPPES file of Aug 9, 2026

Krystal Lea Pierson, APRN-CNP

Family Nurse Practitioner · Sanford, ME

Krystal Lea Pierson, APRN-CNP is a family nurse practitioner with a practice address in Sanford, Maine, and NPI 1306542139, issued on Feb 2, 2023. Check the license (Maine CNP221465, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1306542139
Name
Krystal Lea Pierson
Credential
APRN-CNP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
CNP221465 ME
Self-reported in NPPES; status is on the state search
Practice location
25A June St, Sanford, ME 04073
Phone
(207) 490-7998
Enumerated
Feb 2, 2023
Record last updated
Feb 2, 2023
Medicare enrollment
Enrolled (PECOS I20230327001732); 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 25A June St

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

  1. Carol Aspinall, FNPFamily Nurse Practitioner1508971458
  2. Jenifer Baron, LCSWClinical Social Worker1649611971
  3. Mukesh Bhargava, M. D.Internal Medicine Physician1508861741
  4. Brooke ButterfieldFamily Nurse Practitioner1225414840
  5. Andrea Eng, NPFamily Nurse Practitioner1881046845
  6. Jenner Gibson, M.D.Family Medicine Physician1902286131

Verify Krystal Lea Pierson 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 CNP221465
    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
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2.8 times the Medicare Part D claims of the average family nurse practitioner in 2024

3,653 Medicare Part D claims for 712 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. 33 claims were for opioids.

  1. Krystal Pierson3,653
  2. Specialty average1,305

Most prescribed

  1. Atorvastatin Calcium352 claims
  2. Amlodipine Besylate174 claims
  3. Levothyroxine Sodium138 claims
  4. Lisinopril127 claims
  5. Losartan Potassium117 claims
  6. Jardiance100 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.

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).

Krystal Lea Pierson among 1,274 family nurse practitioner records in Maine

Krystal Lea Pierson, APRN-CNP is one of 1,274 family nurse practitioner records with a practice address in Maine. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 84% of them.

  • NPI issued2023 · 84% of these records are older, 11% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated2022 · median 2018 among the 811 with a school on file
  • Record last updated2023 · 46% 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 Maine practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

21 family nurse practitioner records list a practice address in Sanford

They are 21 of the 311 NPPES records with a practice address in Sanford, and 1,274 family nurse practitioner records in Maine.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Carol Aspinall, FNPSanford, ME 040731508971458
  2. Seth Brooker, NPSanford, ME 040731093826661
  3. Maureen BrooksSanford, ME 040731306462007
  4. Brooke ButterfieldSanford, ME 040731225414840
  5. Amanda Dahlgren, FNP-CSanford, ME 040731720693138
  6. Andrea Eng, NPSanford, ME 040731881046845
  7. Robin Howard, FNPSanford, ME 040731578571402
  8. Cara Lavertu, NPSanford, ME 040731083086037

Common questions

What is Krystal Lea Pierson, APRN-CNP's NPI number?

Krystal Lea Pierson, APRN-CNP's National Provider Identifier (NPI) is 1306542139, issued on Feb 2, 2023. An NPI identifies a provider in billing; it is not a license.

Where is Krystal Lea Pierson, APRN-CNP located?

The NPPES record lists a practice address at 25A June St, Sanford, ME, 04073. Phone: (207) 490-7998. Providers update this record themselves, so call before visiting.

How can I verify Krystal Lea Pierson, APRN-CNP's license?

NPPES lists Maine license number CNP221465, as entered by the provider. Search the Maine board that licenses this profession; the NPPES record confirms identity only.

How much does Krystal Lea Pierson, APRN-CNP prescribe under Medicare Part D?

In 2024, Krystal Lea Pierson, APRN-CNP had 3,653 Medicare Part D claims for 712 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.