MARK L STILLWELL (M.D.) – Infectious Disease Physician, NPI 1568459451
Infectious Disease Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,274 INTERNAL MEDICINE in AR
Provider Addresses for MARK L STILLWELL (M.D.)
2900 Medical Center Parkway
Suite 240A
Bentonville, AR 72712
Phone: (479) 553-2121
Fax: (479) 553-2916
Type: Location
2900, Southeast Medical Center Parkway, Bentonville, Benton County, Arkansas, 72712, United States
SUITE 240A
BENTONVILLE, AR 72712
Phone: (479) 553-2121
Fax: (479) 553-2916
Type: Mailing
PO BOX 776084
CHICAGO, IL 606776084
Phone: (479) 284-4100
Fax: (314) 364-6321
Type: Mailing
6801 ROGERS AVE FL 5
FORT SMITH, AR 729034067
Phone: (479) 274-4100
Fax: (479) 274-4199
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
Loading prescription activity...
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: 2004-09-24
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
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20040924000537 | I | Infectious Disease | AR | TBD |
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.
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 72712)
Loading plans...
Group practice members
| Name | Specialty | State |
|---|---|---|
| G A S T R O E N T E R O L O G Y | AR | |
| Family Practice | AR | |
| - | AR | |
| Family Practice | IL | |
| Nurse Practitioner | AR | |
| Nurse Practitioner | AR | |
| - | OK | |
| G A S T R O E N T E R O L O G Y | AR | |
| Nurse Practitioner | AR | |
| O B S T E T R I C S/ G Y N E C O L O G Y | AR |
Reviews
All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.
No reviews yet. Be the first to share your experience — your opinion helps families compare providers.