Catherine M. Lyden, FNP
Family Nurse Practitioner · South Portland, ME
Catherine M. Lyden, FNP is a family nurse practitioner with a practice address in South Portland, Maine, and NPI 1841553872, issued on Jun 25, 2012. Check the license (Maine CNP121026, as entered in NPPES) with the Maine board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Catherine M. Lyden
- Credential
- FNP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- CNP121026 ME
Self-reported in NPPES; status is on the state search - Practice location
- 100 Foden RD # 103, South Portland, ME 04106
- Phone
- (207) 828-1122
- Enumerated
- Jun 25, 2012
- Record last updated
- Mar 24, 2026
- Fax
- (207) 828-0188
- Medicare enrollment
- Enrolled (PECOS I20121023000359); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 1,274 in Maine → Look up another NPI →
Verify Catherine M. Lyden in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maine board licenses this profession
Search for license CNP121026Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The MIPS final score for 2023 (Medicare payment program): 98.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Chest Medicine Associates PASouth Portland, ME
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Catherine M. Lyden among 1,274 family nurse practitioner records in Maine
Catherine M. Lyden, FNP is one of 1,274 family nurse practitioner 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 2012, is newer than 33% of them.
- NPI issued2012 · 33% of these records are older, 63% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2012 · median 2018 among the 811 with a school on file
- Record last updated2026 · 46% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Maine practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
46 family nurse practitioner records list a practice address in South Portland
They are 46 of the 1,143 NPPES records with a practice address in South Portland, and 1,274 family nurse practitioner records in Maine.
All 1,274 in Maine → Every provider in South Portland → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Pamela Argereow, FNPSouth Portland, ME 041061013087758
- Lisa Bulthuis, NPSouth Portland, ME 041061689636607
- Mary Delois, RN,MSN,F.N.P.-CSouth Portland, ME 041061003963232
- Sarah Fuhrman, FNPSouth Portland, ME 041061053380741
- Jaime Hare, FNP-CSouth Portland, ME 041061679543219
- Duncan Hopkins, MS, FNP-CSouth Portland, ME 041061033233754
- Lynn Howard, APRN CNPSouth Portland, ME 041061184624397
- Melissa Libby, FNPSouth Portland, ME 041061033170709
Common questions
What is Catherine M. Lyden, FNP's NPI number?
Catherine M. Lyden, FNP's National Provider Identifier (NPI) is 1841553872, issued on Jun 25, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Catherine M. Lyden, FNP located?
The NPPES record lists a practice address at 100 Foden RD # 103, South Portland, ME, 04106. Phone: (207) 828-1122. Providers update this record themselves, so call before visiting.
How can I verify Catherine M. Lyden, FNP's license?
NPPES lists Maine license number CNP121026, as entered by the provider. Search the Maine board that licenses this profession; the NPPES record confirms identity only.
What is Catherine M. Lyden, FNP's MIPS final score?
The 2023 MIPS final score is 98.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.