Bayleigh Isherwood
Nurse Practitioner · South Portland, ME
Bayleigh Isherwood is a nurse practitioner with a practice address in South Portland, Maine, and NPI 1295217958, issued on Aug 29, 2018. Check the license (Maine CNP181111, as entered in NPPES) with the Maine board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Bayleigh Isherwood
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License numbers
- CNP181111 ME
RN68856 ME
Self-reported in NPPES; status is on the state search - Practice location
- 100 Foden RD Ste 203, South Portland, ME 04106
- Phone
- (207) 874-1489
- Enumerated
- Aug 29, 2018
- Record last updated
- Mar 10, 2026
- Medicare enrollment
- Enrolled (PECOS I20181126000080); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 450 in Maine → Look up another NPI →
Also registered at 100 Foden RD Ste 203
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Christopher CathcartPhysician Assistant1073179230
- David Clark, DOFamily Medicine Physician1760910863
- Megan Driscoll, MDFamily Medicine Physician1265482152
- Meaghan JohnsonFamily Medicine Physician1932546884
- Karyn King, M.D.Family Medicine Physician1952890485
- Victoria Lazareth, NPAdult Health Nurse Practitioner1497729297
Verify Bayleigh Isherwood in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maine board licenses this profession
Search for license CNP181111Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
50% fewer Medicare Part D claims than the average nurse practitioner in 2024
553 Medicare Part D claims for 171 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 61 claims were for opioids.
Most prescribed
- Lorazepam32 claims
- Tramadol Hcl31 claims
- Alprazolam21 claims
- Atorvastatin Calcium16 claims
- Amlodipine Besylate15 claims
- Diazepam15 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
- Intermed PAYarmouth, ME
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Bayleigh Isherwood among 450 nurse practitioner records in Maine
Bayleigh Isherwood is one of 450 nurse practitioner records with a practice address in Maine. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 65% of them.
- NPI issued2018 · 65% of these records are older, 28% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2018 · median 2017 among the 258 with a school on file
- Record last updated2026 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Maine practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nurse Practitioner providers in Maine
There are 450 nurse practitioner records in Maine.
All 450 in Maine → Every provider in South Portland → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Noelle Cooper, AGNP-CSouth Portland, ME 041061033633714
- Christian Leathley, FNP-CSouth Portland, ME 041061699453407
- Frances Lewis, NPSouth Portland, ME 041061194351445
- Theresa Roelke, NPSouth Portland, ME 041061720525447
- Joan Stults, ANPSouth Portland, ME 041061841251113
- Chiara Tomasello, DNPSouth Portland, ME 041061316404577
- Allison Whittier, CNPSouth Portland, ME 041061629615554
- Brianna Boutin, NPFalmouth, ME 041051962854786
Common questions
What is Bayleigh Isherwood's NPI number?
Bayleigh Isherwood's National Provider Identifier (NPI) is 1295217958, issued on Aug 29, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Bayleigh Isherwood located?
The NPPES record lists a practice address at 100 Foden RD Ste 203, South Portland, ME, 04106. Phone: (207) 874-1489. Providers update this record themselves, so call before visiting.
How can I verify Bayleigh Isherwood's license?
NPPES lists Maine license number CNP181111, as entered by the provider. Search the Maine board that licenses this profession; the NPPES record confirms identity only.
How much does Bayleigh Isherwood prescribe under Medicare Part D?
In 2024, Bayleigh Isherwood had 553 Medicare Part D claims for 171 beneficiaries; the average among nurse practitioner prescribers was 1,109. 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.