MR. JUSTIN SCOTT LINEFSKY (LCSW) – Social Worker, NPI 1205160405

MR. JUSTIN SCOTT LINEFSKY (LCSW) is a healthcare provider. based in Dover, Delaware. specializing in CLINICAL SOCIAL WORKER. They hold the professional credentials LCSW. They hold a License No. 079938 (NY). The NPI Number for MR. JUSTIN SCOTT LINEFSKY (LCSW) is 1205160405

Main info

Male
Sole Proprietor
17 Years Of Experience
Accepts Medicare Assignment
Name
MR. JUSTIN SCOTT LINEFSKY (LCSW)
NPI
1205160405
Phone
(302) 674-1397
Address
121 W LOOCKERMAN ST
Enumeration Date
22 September 2009
Last Update Date
20 February 2013

Doctor Profile

Medical School Name
OTHER
Secondary Phone
3025035142
Graduation Year
2009 (17 years ago)
PAC ID
3577870443
Group Practice PAC ID
4587910013
Professional Enrollment ID
I20150910000975
Address ID
DE199635369MI1011XWAYX300
Data current as of
20 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience64
Completeness75
Years active:16State licenses:3Digital endpointsOther names

299 CLINICAL SOCIAL WORKER in DE

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Provider Addresses for MR. JUSTIN SCOTT LINEFSKY (LCSW)

  • 121, West Loockerman Street, Dover, Kent County, Delaware, 19904, United States

    DOVER, DE 199047325

    Phone: (302) 674-1397

    Fax: (302) 674-1602

    Mailing address matches the actual address.

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: 2015-09-10

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

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20150910000975IClinical Social WorkerDETBD

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.

Verify on CMS Revalidation Lookup Tool

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 19904)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 4587910013View full group profile
NameSpecialtyState
Mental Health CounselorDE
Mental Health CounselorDE

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Frequently asked questions

What is the standard ID for MR. JUSTIN SCOTT LINEFSKY (LCSW) in the U.S.?
In the U.S., MR. JUSTIN SCOTT LINEFSKY (LCSW) is identified by NPI 1205160405.
Is MR. JUSTIN SCOTT LINEFSKY (LCSW)'s NPI status active today?
Active status means MR. JUSTIN SCOTT LINEFSKY (LCSW)'s NPI record is not deactivated in the public file.
What does the directory say MR. JUSTIN SCOTT LINEFSKY (LCSW) does?
Insurance directories may phrase it differently, but here MR. JUSTIN SCOTT LINEFSKY (LCSW) maps to Social Worker. Clinical services aligned with this taxonomy classification.
What geographic area is tied to MR. JUSTIN SCOTT LINEFSKY (LCSW)?
MR. JUSTIN SCOTT LINEFSKY (LCSW) is associated with Dover, Delaware in the same public data insurers reference.
Who maintains MR. JUSTIN SCOTT LINEFSKY (LCSW)'s record?
Providers certify NPPES data; CMS hosts the public file you are viewing.