DR. JOHN W CASSIDY (M.D.) – Brain Injury Medicine (Psychiatry & Neurology) Physician, NPI 1114097748

DR. JOHN W CASSIDY (M.D.) is a healthcare provider. based in Houston, Texas. specializing in Brain Injury Medicine (Psychiatry & Neurology) Physician. They hold the professional credentials M.D.. They hold a License No. H3450 (TX). The NPI Number for DR. JOHN W CASSIDY (M.D.) is 1114097748

Main info

Male
Name
DR. JOHN W CASSIDY (M.D.)
NPI
1114097748
Phone
(713) 355-6111
Address
1 RIVERWAY STE 700
Enumeration Date
9 November 2006
Last Update Date
19 September 2022
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience72
Completeness75
Years active:19State licenses:1Digital endpointsOther names

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Provider Addresses for DR. JOHN W CASSIDY (M.D.)

  • 1 RIVERWAY STE 700

    HOUSTON, TX 770561988

    Phone: (713) 355-6111

    Fax: (713) 355-6822

    Type: Mailing

  • One Riverway, 1, Riverway, Houston, Harris County, Texas, 77056, United States

    SUITE 600

    HOUSTON, TX 770561920

    Phone: (713) 355-6111

    Fax: (713) 355-6822

    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: 2012-03-07

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
I20120307000150IPsychiatryTXTBD

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

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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 77056)

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Reviews

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Frequently asked questions

What is DR. JOHN W CASSIDY (M.D.)'s NPI number?
DR. JOHN W CASSIDY (M.D.)'s NPI is 1114097748 — the number used across U.S. healthcare to identify this provider.
Is DR. JOHN W CASSIDY (M.D.) still an active registrant?
DR. JOHN W CASSIDY (M.D.) carries an active NPI according to the public dataset.
How would a patient describe DR. JOHN W CASSIDY (M.D.)'s focus?
For DR. JOHN W CASSIDY (M.D.), the primary taxonomy reads as Brain Injury Medicine (Psychiatry & Neurology) Physician. Clinical services aligned with this taxonomy classification.
Is DR. JOHN W CASSIDY (M.D.) associated with Houston?
Public fields place DR. JOHN W CASSIDY (M.D.) around Houston, Texas. Always confirm the exact site before visiting.
Does inactive status remove historical data?
Historical rows can remain visible after status changes — read the dates carefully.

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