Alonzo P. Walker, MD
Surgical Oncology Physician · Milwaukee, WI
Alonzo P. Walker, MD is a surgical oncology physician with a practice address in Milwaukee, Wisconsin, and NPI 1700838240, issued on May 16, 2006. Check the license (Wisconsin 25739, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Alonzo P. Walker
- Credential
- MD
- Primary taxonomy
- Surgical Oncology Physician 2086X0206X
- License number
- 25739 WI
Self-reported in NPPES; status is on the state search - Practice location
- 9200 W Wisconsin Ave, Milwaukee, WI 53226
- Phone
- (414) 805-5020
- Enumerated
- May 16, 2006
- Record last updated
- Feb 15, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (414) 805-5771
- Medicaid ID
- 1700838240 WI
- Entity
- Type 1 · individual
8 nearest surgical oncology physician records → All 42 in Wisconsin → Look up another NPI →
Also registered at 9200 W Wisconsin Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Lolia Abibo, M.D.Hospitalist Physician1912359795
- Haisam Abid, MBBSHospitalist Physician1578083184
- Faith Abodunrin, MDHematology & Oncology Physician1437768769
Verify Alonzo P. Walker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 25739Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $102.78
1 payment: food and beverage; the largest payer was Amgen Inc. The 1,132 providers of this specialty with any payment received $4,224.74 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Alonzo P. Walker among 42 surgical oncology physician records in Wisconsin
Alonzo P. Walker, MD is one of 42 surgical oncology physician records with a practice address in Wisconsin. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 76% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileNo · 76% of these records are
- Record last updated2013 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2086X0206X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgical Oncology Physician providers in Wisconsin
There are 42 surgical oncology physician records in Wisconsin.
All 42 in Wisconsin → Every provider in Milwaukee → Surgical Oncology Physician nationwide →
The 8 surgical oncology physician records with the nearest ZIP codes
- Callisia Clarke, MDMilwaukee, WI 532261275752578
- Adrienne Cobb, M.D.Milwaukee, WI 532261710229943
- Douglas Evans, M.D.Milwaukee, WI 532261295820116
- Thomas Gamblin, M.D.Milwaukee, WI 532261033182175
- Rebecca Kim, MDMilwaukee, WI 532261760643126
- Anai KothariMilwaukee, WI 532261710243266
- Ugwuji Maduekwe, MDMilwaukee, WI 532261184750853
- Caitlin PattenMilwaukee, WI 532261124342761
Common questions
What is Alonzo P. Walker, MD's NPI number?
Alonzo P. Walker, MD's National Provider Identifier (NPI) is 1700838240, issued on May 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Alonzo P. Walker, MD located?
The NPPES record lists a practice address at 9200 W Wisconsin Ave, Milwaukee, WI, 53226. Phone: (414) 805-5020. Providers update this record themselves, so call before visiting.
How can I verify Alonzo P. Walker, MD's license?
NPPES lists Wisconsin license number 25739, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.