Evelyn Linda Llewellyn, PSY.D.
Clinical Psychologist · Darien, CT
Evelyn Linda Llewellyn, PSY.D. is a clinical psychologist with a practice address in Darien, Connecticut, and NPI 1770646424, issued on Dec 17, 2006. Check the license (Connecticut 3416, as entered in NPPES) with the Connecticut board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Evelyn Linda Llewellyn
- Credential
- PSY.D.
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License numbers
- 3416 CT
009378-1 NY
Self-reported in NPPES; status is on the state search - Practice location
- 6 Musket LN, Darien, CT 06820
- Phone
- (203) 912-5719
- Enumerated
- Dec 17, 2006
- Record last updated
- Aug 24, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (203) 698-1548
- Medicare enrollment
- Enrolled (PECOS I20151008001846); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest clinical psychologist records → All 1,114 in Connecticut → Look up another NPI →
Verify Evelyn Linda Llewellyn in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
Search for license 3416Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Mental Health Specialty Group PAHartford, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Evelyn Linda Llewellyn among 1,114 clinical psychologist records in Connecticut
Evelyn Linda Llewellyn, PSY.D. is one of 1,114 clinical psychologist records with a practice address in Connecticut. 14% 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 2% of them.
- NPI issued2006 · 2% of these records are older, 70% newer
- In a Medicare fileYes · 14% of these records are
- In the CMS Doctors and Clinicians fileYes · 26% of these records are
- Graduated1987 · median 2000 among the 294 with a school on file
- Record last updated2021 · 72% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103TC0700X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
15 clinical psychologist records list a practice address in Darien
They are 15 of the 380 NPPES records with a practice address in Darien, and 1,114 clinical psychologist records in Connecticut.
All 1,114 in Connecticut → Every provider in Darien → Clinical Psychologist nationwide →
The 8 clinical psychologist records with the nearest ZIP codes
- Clare Campbell, PHDDarien, CT 068201992392039
- Stephen DulskiDarien, CT 068201376971572
- Timothy Huber, PHDDarien, CT 068201568538866
- Cynthia KeefeDarien, CT 068201912250093
- Jessica Lawson, PH.D.Darien, CT 068201154782589
- Maryjean Macdonald, PSY.D.Darien, CT 068201578681516
- Alexandra RamsteckDarien, CT 068201669889416
- Sarah Rendell, PH.D., M.A.T.Darien, CT 068201871968479
Common questions
What is Evelyn Linda Llewellyn, PSY.D.'s NPI number?
Evelyn Linda Llewellyn, PSY.D.'s National Provider Identifier (NPI) is 1770646424, issued on Dec 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Evelyn Linda Llewellyn, PSY.D. located?
The NPPES record lists a practice address at 6 Musket LN, Darien, CT, 06820. Phone: (203) 912-5719. Providers update this record themselves, so call before visiting.
How can I verify Evelyn Linda Llewellyn, PSY.D.'s license?
NPPES lists Connecticut license number 3416, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity 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.