Doctor profile · Federal record
Dr. Joan Walker, MD
Gynecologic Oncology Physician (CMS: Gynecological Oncology) · Oklahoma City, OK
- NPI 1477521839
- Accepts Medicare
- MIPS 71.7 / 100 · 2023
- 44 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
825 Ne 10Th St, Oupb5200
Oklahoma City, OK 731045417
(405) 271-7770 - Mailing address
-
1122 Ne 13Th St, Ori236
Oklahoma City, OK 731171039
Credentials & registration
- NPI registered
- March 2006 — 20 yrs on file
- Profile last updated
- July 8, 2007
- Year of graduation
- 1982 — 44 yrs since
- Specialty taxonomy
- 207VX0201X — NUCC code
- State license (1)
- Oklahoma #17369
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1477521839. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
287
Distinct HCPCS
7
Medicare allowed
$30,600
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 96 | 53 | $94 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 70 | 39 | $136 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 40 | 23 | $110 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 25 | 17 | $76 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 20 | 17 | $63 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 20 | 18 | $167 | |
99238 |
Hospital discharge day management, 30 minutes or less | 16 | 16 | $73 |
In context: peer comparison
Among 5 peers in Oklahoma City Gynecologic Oncology Physician, average services per provider: 41. This provider delivers 7.0× the peer median.Open Payments
Industry payments received
All-time total
$2,297
Transactions
11
Manufacturers
6
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Merck Sharp & Dohme LLC | 6 | $2,208.04 | |
| Astellas Pharma US INC | 1 | $22.21 | |
| Daiichi Sankyo INC. | 1 | $19.28 | |
| AstraZeneca Pharmaceuticals Lp | 1 | $17.87 | |
| Myriad Genetic Laboratories, INC. | 1 | $15.60 | |
| Novartis Pharmaceuticals Corporation | 1 | $14.45 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
125
Patients
11
Total drug cost
$363,884
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Eliquis (Apixaban) | Brand | 29 | 0 | $22,986 |
| Lynparza (Olaparib) | Brand | 24 | 0 | $339,623 |
| Letrozole | Generic | 17 | 0 | $600 |
| Prochlorperazine Maleate | Generic | 16 | 11 | $271 |
| Ondansetron Hcl | Generic | 15 | 0 | $196 |
| Amlodipine Besylate | Generic | 12 | 0 | $90 |
| Gabapentin | Generic | 12 | 0 | $119 |
Frequently asked questions
What is Dr. Joan Walker's medical specialty?
Dr. Joan Walker practices Gynecologic Oncology Physician in Oklahoma City, OK.
Where does Dr. Joan Walker practice?
Dr. Joan Walker practices at 825 Ne 10Th St, Oklahoma City, OK 731045417. Office phone: 4052717770.
What is Dr. Joan Walker's NPI?
Dr. Joan Walker's National Provider Identifier (NPI) is 1477521839, issued by NPPES.
Does Dr. Joan Walker accept Medicare assignment?
Yes. Dr. Joan Walker accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Joan Walker commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99215); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233). Source: CMS Medicare Physician & Other Practitioners file.