MR. KENNETH GREIFF (LCSW) – Clinical Social Worker, NPI 1033367297

MR. KENNETH GREIFF (LCSW) is a healthcare provider. based in Philadelphia, Pennsylvania. specializing in CLINICAL SOCIAL WORKER. They hold the professional credentials LCSW. They hold a License No. 15122138 (PA). The NPI Number for MR. KENNETH GREIFF (LCSW) is 1033367297

Main info

Male
22 Years Of Experience
Accepts Medicare Assignment
Name
MR. KENNETH GREIFF (LCSW)
NPI
1033367297
Phone
(215) 755-0500
Address
1400 REED ST
Enumeration Date
29 August 2008
Last Update Date
5 June 2009

Doctor Profile

Medical School Name
OTHER
Secondary Phone
2155685900
Graduation Year
2004 (22 years ago)
PAC ID
4789731555
Group Practice PAC ID
2668539925
Professional Enrollment ID
I20090414000139
Address ID
PA191034316PH2400XSTXX300
Data current as of
20 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience48
Completeness75
Years active:17State licenses:1Digital endpointsOther names

2,438 CLINICAL SOCIAL WORKER in PA

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Provider Addresses for MR. KENNETH GREIFF (LCSW)

  • 1400, Reed Street, Hawthorne, South Philadelphia, Philadelphia, Philadelphia County, Pennsylvania, 19146, United States

    PHILADELPHIA, PA 191464823

    Phone: (215) 755-0500

    Type: Mailing

  • 2400 Chestnut, 2400, Chestnut Street, Rittenhouse Square, Philadelphia, Philadelphia County, Pennsylvania, 19104-2989, United States

    HARMONY MENTAL HEALTH SERVICES, INC.

    PHILADELPHIA, PA 19103

    Phone: (215) 568-5903

    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: 2009-04-14

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
I20090414000139IClinical Social WorkerPATBD

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 19146)

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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: 2668539925View full group profile
NameSpecialtyState
Clinical Social WorkerPA
P S Y C H I A T R YPA
-PA
Clinical Social WorkerPA

Reviews

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Frequently asked questions

Does MR. KENNETH GREIFF (LCSW) share an NPI with anyone else?
NPI numbers are unique to each provider or organization — MR. KENNETH GREIFF (LCSW) uses 1033367297.
Does the file indicate MR. KENNETH GREIFF (LCSW) is practicing under active NPI?
Directory data currently reports MR. KENNETH GREIFF (LCSW) as active.
What is MR. KENNETH GREIFF (LCSW)'s primary classification?
Clinical Social Worker is the headline specialty for MR. KENNETH GREIFF (LCSW) here. Clinical services aligned with this taxonomy classification.
What area does MR. KENNETH GREIFF (LCSW) serve?
MR. KENNETH GREIFF (LCSW)'s listing highlights Philadelphia, Pennsylvania; more addresses can appear in NPPES.
Is the information about MR. KENNETH GREIFF (LCSW) up to date?
Data updates when providers file changes in NPPES — treat critical facts as "verify if unsure."

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