MELISSA LILLIEN (LCSW) – Clinical Social Worker, NPI 1619203577
Clinical Social Worker
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
7,091 CLINICAL SOCIAL WORKER in NY
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Provider Addresses for MELISSA LILLIEN (LCSW)
Northern Boulevard, Douglaston, Queens, New York, 11030:11362, United States
DOUGLASTON, NY 113621150
Phone: (718) 423-6200
Type: Location
35, Margaret Court, Village of Great Neck, Town of North Hempstead, Nassau County, New York, 11024, United States
GREAT NECK, NY 110241807
Phone: (516) 220-2846
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
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: 2016-03-15
PECOS data refreshed: 2026-06-15
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
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 |
|---|---|---|---|---|
| I20131125000098 | I | Clinical Social Worker | NY | TBD |
| I20160315002118 | I | Clinical Social Worker | NJ | 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.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 90837 | Psychotherapy, 1 hour | 864 | 54 | $0 |
Insurance plans in this area (ZIP 11362)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| CLINICAL SOCIAL WORKER | NY | 90853 | Group psychotherapy | 134 | 16 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Nurse Practitioner | NY | |
| Nurse Practitioner | NY | |
| Nurse Practitioner | NY | |
| - | MA | |
| Nurse Practitioner | FL | |
| - | NY |
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