DR. GREGORY STEPHEN KACZENSKI (M.D.) – Clinical Neuropsychologist, NPI 1073661310

DR. GREGORY STEPHEN KACZENSKI (M.D.) is a healthcare provider. based in Little rock, Arkansas. specializing in PSYCHIATRY. They hold the professional credentials M.D.. They hold a License No. C-5000 (AR). The NPI Number for DR. GREGORY STEPHEN KACZENSKI (M.D.) is 1073661310

Main info

Male
Sole Proprietor
50 Years Of Experience
Accepts Medicare Assignment
Name
DR. GREGORY STEPHEN KACZENSKI (M.D.)
NPI
1073661310
Phone
(501) 221-7238
Address
1433 KAVANAUGH BLVD
Enumeration Date
5 January 2007
Last Update Date
31 March 2008

Doctor Profile

Medical School Name
UNIVERSITY OF ARKANSAS COLLEGE OF MEDICINE
Secondary Phone
9166518811
Graduation Year
1976 (50 years ago)
PAC ID
4587704507
Group Practice PAC ID
9638174238
Professional Enrollment ID
I20190222000991
Address ID
CA932109503CO24511AVEX400
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience52
Completeness75
Years active:19State licenses:1Digital endpointsOther names

244 PSYCHIATRY in AR

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Provider Addresses for DR. GREGORY STEPHEN KACZENSKI (M.D.)

  • 1433, Kavanaugh Boulevard, Pulaski Heights, Little Rock, Big Rock Township, Pulaski County, Arkansas, 72205, United States

    LITTLE ROCK, AR 722054323

    Phone: (501) 221-7238

    Fax: (501) 221-7239

    Type: Mailing

  • 801, Scott Street, Little Rock, Pulaski County, Arkansas, 72201, United States

    LITTLE ROCK, AR 722014613

    Phone: (501) 221-7238

    Fax: (501) 221-7239

    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: 2019-02-22

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
I20190222000991IPsychiatryCATBD

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 72205)

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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: 9638174238View full group profile
NameSpecialtyState
Clinical PsychologistCA
P S Y C H I A T R YCA
Internal MedicineCA
P S Y C H I A T R YCA
-CA
-CA
-CA
P S Y C H I A T R YCA
Physical Therapist In Private PracticeCA
Internal MedicineCA

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Frequently asked questions

What number should I use to identify DR. GREGORY STEPHEN KACZENSKI (M.D.) for billing?
Administrative and clinical systems typically use NPI 1073661310 for DR. GREGORY STEPHEN KACZENSKI (M.D.).
Should I treat DR. GREGORY STEPHEN KACZENSKI (M.D.) as an active provider?
Patients and plans typically see DR. GREGORY STEPHEN KACZENSKI (M.D.) as active in the national extract.
What does the directory say DR. GREGORY STEPHEN KACZENSKI (M.D.) does?
Insurance directories may phrase it differently, but here DR. GREGORY STEPHEN KACZENSKI (M.D.) maps to Clinical Neuropsychologist. Clinical services aligned with this taxonomy classification.
Is DR. GREGORY STEPHEN KACZENSKI (M.D.) tied to Little Rock, Arkansas?
If you are local to Little Rock, Arkansas, DR. GREGORY STEPHEN KACZENSKI (M.D.) may be relevant to your search.
Who maintains DR. GREGORY STEPHEN KACZENSKI (M.D.)'s record?
Providers certify NPPES data; CMS hosts the public file you are viewing.

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