LEWIS ALFRED WALLACE (DO) – Internal Medicine Physician, NPI 1942292271
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,474 INTERNAL MEDICINE in OK
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Provider Addresses for LEWIS ALFRED WALLACE (DO)
Chickasaw Nation Medical Center, 1921, Stonecipher Boulevard, Ada, Pontotoc County, Oklahoma, 74820, United States
ADA, OK 74820
Phone: (580) 421-4570
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: 2013-02-08
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 |
|---|---|---|---|---|
| I20130208000391 | I | Internal Medicine | TX | 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.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 41 | 39 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 22 | 21 | $0 |
| 93227 | Electrocardiogram (ecg) 2-day continuous with review by health care professional | 19 | 19 | $0 |
Insurance plans in this area (ZIP 74820)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | FL | |
| - | OK | |
| - | OK | |
| - | MO | |
| Emergency Medicine | OK | |
| Nurse Practitioner | OK | |
| - | OK | |
| - | OK | |
| O P T O M E T R Y | OK | |
| Nurse Practitioner | OK |
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