Dr. Joan L. Walker, MD
- Medicare services, 2024
- 245
- Medicare patients, 2024
- 117
- Part D claims, 2024
- 323
- MIPS score, 2024
- 77
- Hospital affiliations
- 1
- Practice address
- 1200 Childrens Ave, Oklahoma City, OK 73104
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Ou Medical Center-The Children's Ho - Rad CT - HOPD
Acute Care Hospital outpatient department · Oklahoma City, Oklahoma
Find Dr. Walker's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Joan L. Walker is a gynecologic oncologist in Oklahoma City, Oklahoma
Dr. Walker practices at Ou Medical Center-The Children's Ho - Rad CT - HOPD in Oklahoma City, Oklahoma.
Dr. Walker's NPI, 1477521839, was assigned on March 10, 2006. Dr. Walker graduated from University of Southern California Keck School of Medicine in 1982. Dr. Walker holds Oklahoma license 17369.
- NPI
- 1477521839NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6002821105
- NPI enumeration date
- March 10, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 70
- Medical school graduation
- 1982
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Joan L. Walker practices at Ou Medical Center-the Children's Ho - Rad CT - HOPD in Oklahoma City, Oklahoma
Dr. Walker's primary practice is Ou Medical Center-the Children's Ho - Rad CT - HOPD, at 1200 Childrens Ave, Oklahoma City, OK 73104.
- Ou Medical Center-the Children's Ho - Rad CT - HOPD1200 Childrens Ave, Oklahoma City, OK 73104
Source: Dmand AI Affiliation Data
Dr. Joan L. Walker is affiliated with 4 sites of care and 2 medical groups
Dr. Walker's primary practice is Ou Medical Center-The Children's Ho - Rad CT - HOPD in Oklahoma City, Oklahoma. Dr. Walker is also affiliated with OU Health University of Oklahoma Medical Center. The medical group on file is OU Health. Dmand AI also links Dr. Walker to 2 more group practices and clinics and 1 medical group, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Joan L. Walker's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Walker practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ou Medical Center-The Children's Ho - Rad CT - HOPD | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Joan L. Walker is one of 19 gynecologic oncologists in Oklahoma
Gynecologic oncology is Dr. Walker's primary specialty in the NPI Registry, under taxonomy code 207VX0201X. Dr. Walker is licensed in Oklahoma.
Specialties and state licenses
- Gynecologic oncology, OklahomaPrimary
Gynecologic oncologists near Dr. Walker
Counts of gynecologic oncologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Joan L. Walker billed Medicare for 245 services in 2024
CMS data shows 245 Medicare services from Dr. Walker across 8 procedure codes in 2024, for 117 Medicare patients. Medicare paid $19,274 for them.
Dr. Walker's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2872024: 24515%
Where Dr. Walker's Medicare services took place, 2024
- In an office13455%
- In a facility11145%
Dr. Walker compared with the Oklahoma median for gynecologic oncologists, 2024
- Dr. Walker
- Oklahoma median
- Medicare services
- 245vs 37234% below
- Medicare patients
- 117vs 14318% below
- Part D claims
- 144vs 10340% above
Medians across 20 gynecologic oncologists in Oklahoma with Dmand AI profiles that report each measure.
Dr. Walker's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Walker and other gynecologic oncologists in Oklahoma.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Joan L. Walker treated 117 Medicare patients in 2024, average age 74
CMS counts 117 Medicare patients who saw Dr. Walker in 2024. The largest group is 65 to 74, with 50 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 10% are also on Medicaid. Their average risk score is 2.50, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Walker's median patient age at 70, with 98% women.
Dr. Walker's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Dr. Walker's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis62%
- Cancer57%
- Anxiety38%
- Mood disorders33%
- Depression32%
- Diabetes32%
Share of Medicare patients with each condition. A patient can have several.
Dr. Walker's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women98%
- Men2%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Joan L. Walker wrote 323 Medicare Part D claims in 2024
In 2024, Dr. Walker wrote 323 Medicare Part D claims for 64 patients. 81% of them were for generic drugs. CMS names the drug for 144 of them, across 7 drugs with 11 or more claims each, at $68,619 in total drug cost. In 2023, CMS named 125 claims across 7 drugs.
Dr. Walker's Part D claims by kind of drug, 2024
- Generic262 claims81%
- Brand-name and other61 claims19%
Dr. Walker's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Walker's Part D claims, 2024
- Antibiotics7%21 of 323 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1252024: 14415%
Drugs named by CMS: 7 in 2024, 7 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Joan L. Walker scored 77 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 77 out of 100 for Dr. Walker for performance year 2024, reported as part of a group. Dr. Walker accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Walker's MIPS scores, performance year 2024
- 77of 100Final score
- 53.7of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 70of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Removal of the uterus: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Joan L. Walker received $10,951 in industry payments from 2016 to 2025
CMS Open Payments shows 39 general payments to Dr. Walker from 15 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 81% of the total. Merck Sharp & Dohme Corporation paid the most, $10,241.
General payments to Dr. Walker by program year, 2016 to 2025
General payments to Dr. Walker by kind, 2016 to 2025
- Consulting fees$8,84581%
- Travel and lodging$1,09210%
- Food and beverage$9028%
- Education$1111%
Companies that paid Dr. Walker the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Joan L. Walker graduated from University of Southern California Keck School of Medicine
Dr. Walker graduated from University of Southern California Keck School of Medicine in 1982.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Joan L. Walker's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Joan L. Walker
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Joan L. Walker's NPI number?
Dr. Joan L. Walker's NPI number is 1477521839. It was assigned on March 10, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Joan L. Walker?
Dr. Joan L. Walker is a gynecologic oncologist in Oklahoma City, Oklahoma. The primary specialty in the NPI Registry is Gynecologic Oncology Physician (taxonomy code 207VX0201X).
Where does Dr. Joan L. Walker practice?
Dr. Walker practices at 1200 Childrens Ave, Oklahoma City, OK 73104. Dr. Walker's primary practice is Ou Medical Center-The Children's Ho - Rad CT - HOPD in Oklahoma City, Oklahoma. Dmand AI also links Dr. Walker to 2 group practices and clinics and 1 medical group.
What is Dr. Joan L. Walker's medical license number?
Dr. Walker holds Oklahoma license 17369.
Which hospitals is Dr. Joan L. Walker affiliated with?
Dr. Walker is affiliated with OU Health University of Oklahoma Medical Center.
What medical group is Dr. Joan L. Walker part of?
Dr. Walker is linked to OU Health. Dmand AI links Dr. Walker to 1 more medical group.
Does Dr. Joan L. Walker accept Medicare?
Yes. CMS data shows Dr. Walker billed Medicare for 245 services in 2024, and Dr. Walker accepts Medicare assignment.
What is Dr. Joan L. Walker's MIPS score?
Dr. Walker's MIPS final score for performance year 2024 is 77 out of 100, reported as part of a group.
How many Medicare patients does Dr. Joan L. Walker see?
CMS counts 117 Medicare patients who saw Dr. Walker in 2024, with an average age of 74.
What services does Dr. Joan L. Walker bill to Medicare?
In 2024, Dr. Walker's most billed Medicare services were office visit, established patient (99215), hospital inpatient care (99232) and office visit, established patient (99214).
Show 4 more questionsShow fewer questions
Where did Dr. Joan L. Walker go to medical school?
Dr. Walker graduated from University of Southern California Keck School of Medicine in 1982.
What drugs does Dr. Joan L. Walker prescribe most?
In 2024 Medicare Part D data, Dr. Walker's most prescribed drugs by claims were Ondansetron HCl, Eliquis and Prochlorperazine Maleate.
Has Dr. Joan L. Walker received payments from drug or device companies?
CMS Open Payments shows $10,951 in general payments to Dr. Walker from 15 companies from 2016 to 2025. The largest total came from Merck Sharp & Dohme Corporation.
How long has Dr. Joan L. Walker been practicing?
Dr. Walker graduated from medical school in 1982, 44 years ago.
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