DR. C DON GREENWAY (M.D.) – Specialist, NPI 1891799722

DR. C DON GREENWAY (M.D.) is a healthcare provider. based in Little rock, Arkansas. specializing in Specialist. They hold the professional credentials M.D.. They hold a License No. C4718 (AR). The NPI Number for DR. C DON GREENWAY (M.D.) is 1891799722

Main info

Male
Name
DR. C DON GREENWAY (M.D.)
NPI
1891799722
Phone
(501) 664-6980
Address
409 N UNIVERSITY AVE
Enumeration Date
9 June 2005
Last Update Date
13 July 2016
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience54
Completeness75
Years active:21State licenses:1Digital endpointsOther names

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Provider Addresses for DR. C DON GREENWAY (M.D.)

  • North University Avenue, Little Rock, Pulaski County, Arkansas, 72207, United States

    LITTLE ROCK, AR 722053108

    Phone: (501) 664-6980

    Fax: (501) 664-4738

    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: 2005-10-25

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
I20051025000021IGastroenterologyARTBD

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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Provider's Procedures

DR. C DON GREENWAY (M.D.) performs procedures in Specialist. See the list of HCPCS codes below.
SpecialtyPractice State
HCPCS Code
Description
Service Count
Beneficiary Count
GASTROENTEROLOGYAR43235Diagnostic examination of esophagus, stomach, and/or upper small bowel using an endoscope6865
GASTROENTEROLOGYAR45378Diagnostic examination of large bowel using an endoscope4946
GASTROENTEROLOGYAR45385Removal of polyps or growths of large bowel using an endoscope7575

Reviews

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Frequently asked questions

Where can patients find DR. C DON GREENWAY (M.D.)'s NPI?
You can confirm DR. C DON GREENWAY (M.D.) with NPI 1891799722; it appears in the national provider directory.
Is DR. C DON GREENWAY (M.D.) currently active in the NPI registry?
CMS-published data lists DR. C DON GREENWAY (M.D.) as an active registrant.
What field does DR. C DON GREENWAY (M.D.) work in?
You can think of DR. C DON GREENWAY (M.D.) as practicing within Other Service Providers. Clinical services aligned with this taxonomy classification.
Where is DR. C DON GREENWAY (M.D.)'s primary listing?
We display Little Rock, Arkansas because that is what the record indicates for DR. C DON GREENWAY (M.D.).
Does Medicare enrollment show here?
Medicare enrollment screens are separate from the basic NPI extract shown here.

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