Caitlin Costigan, FNP-C
Family Nurse Practitioner · Westbrook, ME
Caitlin Costigan, FNP-C is a family nurse practitioner with a practice address in Westbrook, Maine, and NPI 1740662832, issued on Jun 24, 2015. Check the license (Maine CNP151034, as entered in NPPES) with the Maine board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Caitlin Costigan
- Credential
- FNP-C
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- CNP151034 ME
Self-reported in NPPES; status is on the state search - Practice location
- 1 Harnois Ave, Westbrook, ME 04092
- Phone
- (207) 662-3400
- Enumerated
- Jun 24, 2015
- Record last updated
- Apr 24, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (207) 662-3401
- Medicare enrollment
- Enrolled (PECOS I20150810000562); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 1 Harnois Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lucy Amory, MDPediatrics Physician1275891970
- Elizabeth Bacon, LCSW, CADCClinical Social Worker1508259532
- Lauren Buoncristiano, APRN, FNP-CFamily Nurse Practitioner1740896901
- Mikayla Chase, APRN-FNPFamily Nurse Practitioner1417318742
- Jennifer Deane, FNPFamily Nurse Practitioner1265865323
- Chelsea Ginn, FNPFamily Nurse Practitioner1689923104
Verify Caitlin Costigan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maine board licenses this profession
Search for license CNP151034Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
40% more Medicare Part D claims than the average family nurse practitioner in 2024
1,830 Medicare Part D claims for 455 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 33 claims were for opioids.
Most prescribed
- Atorvastatin Calcium112 claims
- Lisinopril86 claims
- Gabapentin70 claims
- Levothyroxine Sodium67 claims
- Omeprazole61 claims
- Albuterol Sulfate Hfa56 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.
Industry payments in 2024: $123.45
1 payment: food and beverage; the largest payer was CeQur Corporation. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- MainehealthWestbrook, ME
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
29 family nurse practitioner records list a practice address in Westbrook
They are 29 of the 559 NPPES records with a practice address in Westbrook, and 1,274 family nurse practitioner records in Maine.
All 29 in Westbrook → All 1,274 in Maine → Every provider in Westbrook →
Other family nurse practitioner records in Maine
- Jessica Abbatiello, NP-CPortland, ME1871811737
- Susan Abbott, FNP-CWaterville, ME1366776007
- Tammy Abbott, NPLewiston, ME1578199246
- Samuel Acha, FNP-BCWestbrook, ME1053832113
- Shannon Achorn, NPRockland, ME1891594271
- Christa Adams, FNPLewiston, ME1215697891
- Chrystal Adams, FNPBangor, ME1235180209
- Sarah Adams, NPLewiston, ME1891933677
- Katharine Addicott, FNPPortland, ME1013032036
- Allison Ainsworth, NPFort Fairfield, ME1487710505
Common questions
What is Caitlin Costigan, FNP-C's NPI number?
Caitlin Costigan, FNP-C's National Provider Identifier (NPI) is 1740662832, issued on Jun 24, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Caitlin Costigan, FNP-C located?
The NPPES record lists a practice address at 1 Harnois Ave, Westbrook, ME, 04092. Phone: (207) 662-3400. Providers update this record themselves, so call before visiting.
How can I verify Caitlin Costigan, FNP-C's license?
NPPES lists Maine license number CNP151034, as entered by the provider. Search the Maine board that licenses this profession; the NPPES record confirms identity only.
How much does Caitlin Costigan, FNP-C prescribe under Medicare Part D?
In 2024, Caitlin Costigan, FNP-C had 1,830 Medicare Part D claims for 455 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.