NPPES file of Aug 9, 2026

Sarah L. Alto, FNP

Family Nurse Practitioner · Topsham, ME

Sarah L. Alto, FNP is a family nurse practitioner with a practice address in Topsham, Maine, and NPI 1487934436, issued on Aug 23, 2011. Check the license (Maine CNP111066, 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
1487934436
Name
Sarah L. Alto
Credential
FNP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
CNP111066 ME
Self-reported in NPPES; status is on the state search
Practice location
1 Wellness Way, Topsham, ME 04086
Phone
(207) 406-7600
Enumerated
Aug 23, 2011
Record last updated
Nov 15, 2023
Fax
(207) 618-5683
Medicare enrollment
Enrolled (PECOS I20111017000299); 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 1 Wellness Way

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

  1. Anthony Caiazzo, APRN-CNPFamily Nurse Practitioner1306436902
  2. Michelle CharlesonRegistered Nurse1811847494
  3. Patricia Davis, LCSWClinical Social Worker1366504516
  4. Debra Francis, NPNurse Practitioner1497483465
  5. Shannon Gaines, PA-CPhysician Assistant1588277958
  6. Deirdre Heersink, DOFamily Medicine Physician1417157298

Verify Sarah L. Alto 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 CNP111066
    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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56% more Medicare Part D claims than the average family nurse practitioner in 2024

2,039 Medicare Part D claims for 451 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. 72 claims were for opioids.

  1. Sarah Alto2,039
  2. Specialty average1,305

Most prescribed

  1. Atorvastatin Calcium177 claims
  2. Levothyroxine Sodium109 claims
  3. Amlodipine Besylate94 claims
  4. Lisinopril57 claims
  5. Losartan Potassium55 claims
  6. Omeprazole52 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. MainehealthTopsham, ME

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

6 family nurse practitioner records list a practice address in Topsham

They are 6 of the 184 NPPES records with a practice address in Topsham, and 1,274 family nurse practitioner records in Maine.

Other family nurse practitioner records in Maine

  1. Jessica Abbatiello, NP-CPortland, ME1871811737
  2. Susan Abbott, FNP-CWaterville, ME1366776007
  3. Tammy Abbott, NPLewiston, ME1578199246
  4. Samuel Acha, FNP-BCWestbrook, ME1053832113
  5. Shannon Achorn, NPRockland, ME1891594271
  6. Christa Adams, FNPLewiston, ME1215697891
  7. Chrystal Adams, FNPBangor, ME1235180209
  8. Sarah Adams, NPLewiston, ME1891933677
  9. Katharine Addicott, FNPPortland, ME1013032036
  10. Allison Ainsworth, NPFort Fairfield, ME1487710505

Common questions

What is Sarah L. Alto, FNP's NPI number?

Sarah L. Alto, FNP's National Provider Identifier (NPI) is 1487934436, issued on Aug 23, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Sarah L. Alto, FNP located?

The NPPES record lists a practice address at 1 Wellness Way, Topsham, ME, 04086. Phone: (207) 406-7600. Providers update this record themselves, so call before visiting.

How can I verify Sarah L. Alto, FNP's license?

NPPES lists Maine license number CNP111066, as entered by the provider. Search the Maine board that licenses this profession; the NPPES record confirms identity only.

How much does Sarah L. Alto, FNP prescribe under Medicare Part D?

In 2024, Sarah L. Alto, FNP had 2,039 Medicare Part D claims for 451 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.