JOAN L WALKER (MD) – Gynecologic Oncology Physician, NPI 1477521839
Gynecologic Oncology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
480 OBSTETRICS/GYNECOLOGY in OK
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Provider Addresses for JOAN L WALKER (MD)
1122, Northeast 13th Street, Oklahoma City, Oklahoma County, Oklahoma, 73117, United States
ORI236
OKLAHOMA CITY, OK 731171039
Phone: (405) 271-1515
Type: Mailing
OU Physicians, 825, Northeast 10th Street, Oklahoma City, Oklahoma County, Oklahoma, 73104, United States
OUPB5200
OKLAHOMA CITY, OK 731045417
Phone: (405) 271-7770
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 24 Open Payments records for all available years, with a total value of $10,368.
Total Amount is formed as General ($10,368) + Research ($0) + Ownership ($0) = $10,368.
Last reported payment date: 2024-12-18 • Largest payer in this snapshot: Merck Sharp & Dohme LLC ($10,212).
Total Amount
$10,368
General + Research + Ownership
Payments
24
Total payment records
General Amount
$10,368
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-18
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Merck Sharp & Dohme LLC | $10,212 |
| AstraZeneca Pharmaceuticals LP | $33 |
| Astellas Pharma US Inc | $22 |
| TerSera Therapeutics LLC | $21 |
| Daiichi Sankyo Inc. | $19 |
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: 2006-02-10
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 |
|---|---|---|---|---|
| I20060210000273 | I | Gynecological Oncology | OK | 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 |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 96 | 53 | $0 |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 70 | 39 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 40 | 23 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 25 | 17 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 20 | 18 | $0 |
Insurance plans in this area (ZIP 73117)
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Provider's Procedures
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