Advanced Gastroenterology Associates – Gastroenterology Physician, NPI 1003199076

Advanced Gastroenterology Associates is a healthcare provider. based in Crystal river, Florida. specializing in Gastroenterology Physician. The NPI Number for Advanced Gastroenterology Associates is 1003199076

Main info

Organization
Name
Advanced Gastroenterology Associates
NPI
1003199076
Phone
(352) 564-3900
Address
6152 W CORPORATE OAKS DR
Authorized Official
DR. BARRETT JEFFREY WALLIS OWNER M.D.
Enumeration Date
26 September 2011
Last Update Date
7 August 2012
Data current as of
20 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience33
Completeness80
Years active:14State licenses:0Digital endpointsUpdated within 12 months

Provider Addresses for Advanced Gastroenterology Associates

  • 6152 W CORPORATE OAKS DR

    CRYSTAL RIVER, FL 344298722

    Phone: (352) 564-3900

    Fax: (352) 564-3906

    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: 2011-11-01

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
O20111101000354OClinic/Group PracticeFLTBD

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 34429)

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Reviews

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Frequently asked questions

What federal number belongs to Advanced Gastroenterology Associates?
The federal identifier for Advanced Gastroenterology Associates is NPI 1003199076.
Is Advanced Gastroenterology Associates's NPI currently valid?
The extract we use shows Advanced Gastroenterology Associates as active.
Can you summarize Advanced Gastroenterology Associates's specialty in plain language?
Clinically, the directory lists Advanced Gastroenterology Associates with Gastroenterology Physician. Clinical services aligned with this taxonomy classification.
What location shows for Advanced Gastroenterology Associates?
We surface Crystal River, Florida for Advanced Gastroenterology Associates based on available NPPES addresses.
Is this NPI for an individual or an organization?
This listing corresponds to an Organization.

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