Walter G. Kao, MD
Cardiovascular Disease Physician · Madison, WI
Walter G. Kao, MD is a cardiovascular disease physician with a practice address in Madison, Wisconsin, and NPI 1457328940, issued on Mar 2, 2006. Check the license (Wisconsin 47856, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Walter G. Kao
- Credential
- MD
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License number
- 47856 WI
Self-reported in NPPES; status is on the state search - Practice location
- 700 S Park St, Madison, WI 53715
- Phone
- (608) 260-2900
- Enumerated
- Mar 2, 2006
- Record last updated
- Apr 14, 2026
- Fax
- (608) 260-2967
- Medicare enrollment
- Enrolled (PECOS I20080612000399); accepts Medicare assignment
- Medical or professional school
- Js Weill Medical College, Cornell University, 1984
- Entity
- Type 1 · individual
8 nearest cardiovascular disease physician records → All 449 in Wisconsin → Look up another NPI →
Also registered at 700 S Park St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Axel AdamsEmergency Medicine Physician1366905192
- Muhammad Akbar, MDHospitalist Physician1720096753
- Ibrahim Al-Sanouri, MDPulmonary Disease Physician1356452833
- Clark Albert, MDAnesthesiology Physician1457300634
- Michael Allan, MDGastroenterology Physician1558300822
- Shane Allen, M.D.Emergency Medicine Physician1649478231
Verify Walter G. Kao in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 47856Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
44% more Medicare Part D claims than the average cardiovascular disease physician in 2024
4,444 Medicare Part D claims for 632 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.
Most prescribed
- Metoprolol Succinate1,015 claims
- Lisinopril409 claims
- Amlodipine Besylate283 claims
- Valsartan282 claims
- Eliquis277 claims
- Furosemide195 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 86.9 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $19.79
1 payment: food and beverage; the largest payer was Amgen Inc. The 16,686 providers of this specialty with any payment received $3,819.56 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.
Bills Medicare through 3 group practices
- Aspirus Medical Group, Inc.Portage, WI
- Aspirus Rhinelander And Tomahawk Hospitals And Clinics, Inc.Stevens Point, WI
- Divine Savior Healthcare IncPortage, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Walter G. Kao among 449 cardiovascular disease physician records in Wisconsin
Walter G. Kao, MD is one of 449 cardiovascular disease physician records with a practice address in Wisconsin. 77% 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 10% of them.
- NPI issued2006 · 10% of these records are older, 42% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1984 · median 2001 among the 279 with a school on file
- Record last updated2026 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Cardiovascular Disease Physician providers in Wisconsin
There are 449 cardiovascular disease physician records in Wisconsin.
All 449 in Wisconsin → Every provider in Madison → Cardiovascular Disease Physician nationwide →
The 8 cardiovascular disease physician records with the nearest ZIP codes
- Alexei Agapitov, M.D.Madison, WI 537151841201514
- Brian Bachhuber, MDMadison, WI 537151497719959
- Daniel Danahy, MDMadison, WI 537151225088412
- Keith Devries, MDMadison, WI 537151366415341
- Sheng-Jing Dong, MDMadison, WI 537151114977311
- Charles Hellman, MDMadison, WI 537151942277033
- Frank Jung, MDMadison, WI 537151689624850
- Benjamin Kleiber, M.D.Madison, WI 537151003869587
Common questions
What is Walter G. Kao, MD's NPI number?
Walter G. Kao, MD's National Provider Identifier (NPI) is 1457328940, issued on Mar 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Walter G. Kao, MD located?
The NPPES record lists a practice address at 700 S Park St, Madison, WI, 53715. Phone: (608) 260-2900. Providers update this record themselves, so call before visiting.
How can I verify Walter G. Kao, MD's license?
NPPES lists Wisconsin license number 47856, 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.
How much does Walter G. Kao, MD prescribe under Medicare Part D?
In 2024, Walter G. Kao, MD had 4,444 Medicare Part D claims for 632 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. Part D covers Medicare prescriptions only.
What is Walter G. Kao, MD's MIPS final score?
The 2023 MIPS final score is 86.9 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.