DR. EVELYN LINDA LLEWELLYN (PSY.D.) – Clinical Psychologist, NPI 1770646424
Clinical Psychologist
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
586 CLINICAL PSYCHOLOGIST in CT
Provider Addresses for DR. EVELYN LINDA LLEWELLYN (PSY.D.)
6 MUSKET LN
DARIEN, CT 068204906
Phone: (203) 912-5719
Fax: (203) 698-1548
Type: Location
112, Shore Road, Old Greenwich, Greenwich, Fairfield County, Connecticut, 06870, United States
OLD GREENWICH, CT 068702214
Phone: (203) 912-5547
Fax: (203) 698-3339
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
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Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2015-10-08
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20151008001846 | I | Clinical Psychologist | CT | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
No Medicare fee-for-service utilization data available for this provider in our database.
Insurance plans in this area (ZIP 06820)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Clinical Social Worker | MD | |
| Mental Health Counselor | MD | |
| Clinical Social Worker | MA | |
| Clinical Social Worker | MA | |
| Clinical Social Worker | VA | |
| Mental Health Counselor | WV | |
| Clinical Social Worker | VA | |
| Clinical Social Worker | MD | |
| Mental Health Counselor | VA | |
| Clinical Social Worker | SC |
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