NPPES file of Aug 9, 2026

Blaire A. Siefken, FNP

Family Nurse Practitioner · Calais, ME

Blaire A. Siefken, FNP is a family nurse practitioner with a practice address in Calais, Maine, and NPI 1073861050, issued on Aug 22, 2012. Check the license (Maine CNP151071, 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
1073861050
Name
Blaire A. Siefken
Credential
FNP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
CNP151071 ME
Self-reported in NPPES; status is on the state search
Practice location
24 Hospital LN, Calais, ME 04619
Phone
(207) 454-7521
Enumerated
Aug 22, 2012
Record last updated
Jul 10, 2015 (not updated in 11 years: call before relying on the address or phone)
Fax
(207) 454-3616
Medicaid ID
376751500 MD
Medicare enrollment
Enrolled (PECOS I20150901003073); 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 24 Hospital LN

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

  1. Laura Ackley, OTROccupational Therapist1942765805
  2. Jennifer Alley, OTA/LOccupational Therapy Assistant1952600033
  3. Samuel Benigno, PHYSICAL THERAPISTPhysical Therapist1700216371
  4. Michael Bodkin, RNFARegistered Nurse First Assistant1508425208
  5. Tamara Boots, D.O.Emergency Medicine Physician1801024039
  6. Debra Boucaud, NPAdult Health Nurse Practitioner1154549632

Verify Blaire A. Siefken 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 CNP151071
    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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90% fewer Medicare Part D claims than the average family nurse practitioner in 2024

137 Medicare Part D claims for 87 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. 12 claims were for opioids.

  1. Blaire Siefken137
  2. Specialty average1,305

Most prescribed

  1. Prednisone24 claims
  2. Doxycycline Monohydrate14 claims
  3. Ondansetron Odt11 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.

One hospital affiliation

  1. Houlton Regional HospitalHoulton, ME · Critical Access Hospitals3 of 5 stars

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

8 family nurse practitioner records list a practice address in Calais

They are 8 of the 186 NPPES records with a practice address in Calais, 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 Blaire A. Siefken, FNP's NPI number?

Blaire A. Siefken, FNP's National Provider Identifier (NPI) is 1073861050, issued on Aug 22, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Blaire A. Siefken, FNP located?

The NPPES record lists a practice address at 24 Hospital LN, Calais, ME, 04619. Phone: (207) 454-7521. Providers update this record themselves, so call before visiting.

How can I verify Blaire A. Siefken, FNP's license?

NPPES lists Maine license number CNP151071, as entered by the provider. Search the Maine board that licenses this profession; the NPPES record confirms identity only.

How much does Blaire A. Siefken, FNP prescribe under Medicare Part D?

In 2024, Blaire A. Siefken, FNP had 137 Medicare Part D claims for 87 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.