Catharine M. Cadigan, MD
Internal Medicine Physician · Windham, ME
Catharine M. Cadigan, MD is an internal medicine physician with a practice address in Windham, Maine, and NPI 1659301679, issued on Jul 4, 2006. Check the license (Maine MD13920, as entered in NPPES) on the Maine Board of Licensure in Medicine; the Medicare figures below come from public CMS files.
- Name
- Catharine M. Cadigan
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- MD13920 ME
036145286C IL
Self-reported in NPPES; status is on the state search - Practice location
- 200 Tandberg Trl, Windham, ME 04062
- Phone
- (207) 751-8411
- Enumerated
- Jul 4, 2006
- Record last updated
- Feb 11, 2025
- Medicare enrollment
- Enrolled (PECOS I20040310000292); accepts Medicare assignment
- Medical or professional school
- Northwestern University Feinberg Medical School, 1990
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 597 in Maine → Look up another NPI →
Verify Catharine M. Cadigan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaine Board of Licensure in Medicine
Search for license MD13920Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
83% fewer Medicare Part D claims than the average internal medicine physician in 2024
526 Medicare Part D claims for 89 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 13 claims were for opioids.
Most prescribed
- Sertraline Hcl37 claims
- Spiriva Handihaler36 claims
- Atorvastatin Calcium33 claims
- Eliquis31 claims
- Pravastatin Sodium26 claims
- Furosemide24 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
- Vantage Healthcare IncScarborough, ME
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Catharine M. Cadigan among 597 internal medicine physician records in Maine
Catharine M. Cadigan, MD is one of 597 internal medicine physician 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 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 44% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1990 · median 2005 among the 369 with a school on file
- Record last updated2025 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Maine practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
7 internal medicine physician records list a practice address in Windham
They are 7 of the 300 NPPES records with a practice address in Windham, and 597 internal medicine physician records in Maine.
All 597 in Maine → Every provider in Windham → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Fred Emerson, MDWindham, ME 040621487722278
- Melanie Fitzsimmons, MDWindham, ME 040621700953015
- Sonja Florman, MDWindham, ME 040621144502535
- Jill Kerekes, M.D.Windham, ME 040621992728323
- Emily Nixon, MDWindham, ME 040621083236459
- Eugene Paluso, M.D.Windham, ME 040621730110586
- Hal Cohen, D.O.Old Orchard Beach, ME 040641598728313
- Beth Madden, M.D.Old Orchard Beach, ME 040641144364746
Common questions
What is Catharine M. Cadigan, MD's NPI number?
Catharine M. Cadigan, MD's National Provider Identifier (NPI) is 1659301679, issued on Jul 4, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Catharine M. Cadigan, MD located?
The NPPES record lists a practice address at 200 Tandberg Trl, Windham, ME, 04062. Phone: (207) 751-8411. Providers update this record themselves, so call before visiting.
How can I verify Catharine M. Cadigan, MD's license?
NPPES lists Maine license number MD13920, as entered by the provider. Search the Maine Board of Licensure in Medicine at https://www.maine.gov/md/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Catharine M. Cadigan, MD prescribe under Medicare Part D?
In 2024, Catharine M. Cadigan, MD had 526 Medicare Part D claims for 89 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.