MARK STEPHEN GIERSCH (LCSW) – Clinical Social Worker, NPI 1023179819

MARK STEPHEN GIERSCH (LCSW) is a healthcare provider. based in Liberty, Missouri. specializing in CLINICAL SOCIAL WORKER. They hold the professional credentials LCSW. They hold a License No. 000893 (MO). The NPI Number for MARK STEPHEN GIERSCH (LCSW) is 1023179819

Main info

Male
Sole Proprietor
41 Years Of Experience
Accepts Medicare Assignment
Name
MARK STEPHEN GIERSCH (LCSW)
NPI
1023179819
Phone
(816) 509-9870
Address
PO BOX 1383
Enumeration Date
13 December 2006
Last Update Date
21 July 2022

Doctor Profile

Medical School Name
OTHER
Secondary Phone
8166947194
Graduation Year
1985 (41 years ago)
PAC ID
9032122270
Professional Enrollment ID
I20100817000319
Address ID
MO641161878KA1201XPKWY401
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience57
Completeness75
Years active:19State licenses:1Digital endpointsOther names

1,245 CLINICAL SOCIAL WORKER in MO

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Provider Addresses for MARK STEPHEN GIERSCH (LCSW)

  • Liberty Post Office, 14, Chestnut Street, Village of Liberty, Town of Liberty, Sullivan County, New York, 12754, United States

    LIBERTY, MO 640691383

    Phone: (816) 509-9870

    Fax: (816) 368-0730

    Type: Mailing

  • Northwest Briarcliff Parkway, Kansas City, Clay County, Missouri, 64116, United States

    KANSAS CITY, MO 641161878

    Phone: (816) 694-7194

    Fax: (816) 368-0730

    Type: Location

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: 2010-08-17

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
I20100817000319IClinical Social WorkerMOTBD

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.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
90834Psychotherapy, 45 minutes42111$0
View full utilization report →

Insurance plans in this area (ZIP 64069)

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Reviews

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Frequently asked questions

What unique ID ties claims to MARK STEPHEN GIERSCH (LCSW)?
NPI 1023179819 is assigned to MARK STEPHEN GIERSCH (LCSW) under the national enumeration system.
Is MARK STEPHEN GIERSCH (LCSW)'s enrollment marked active?
An active flag here means the NPI record is not in a deactivated state.
Can you summarize MARK STEPHEN GIERSCH (LCSW)'s specialty in plain language?
Clinically, the directory lists MARK STEPHEN GIERSCH (LCSW) with Clinical Social Worker. Clinical services aligned with this taxonomy classification.
Where is MARK STEPHEN GIERSCH (LCSW)'s primary listing?
We display Liberty, Missouri because that is what the record indicates for MARK STEPHEN GIERSCH (LCSW).
Is this NPI for an individual or an organization?
This listing corresponds to an Individual Provider.

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