Joseph Xavier Kou, M.D.
Orthopaedic Foot and Ankle Surgery Physician · Walnut Creek, CA
Joseph Xavier Kou, M.D. is an orthopaedic foot and ankle surgery physician with a practice address in Walnut Creek, California, and NPI 1518175868, issued on May 18, 2007. Check the license (California A99887, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Joseph Xavier Kou
- Credential
- M.D.
- Primary taxonomy
- Orthopaedic Foot and Ankle Surgery Physician 207XX0004X
- License number
- A99887 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2625 Shadelands Dr, Walnut Creek, CA 94598
- Phone
- (925) 939-8585
- Enumerated
- May 18, 2007
- Record last updated
- Nov 12, 2025
- Fax
- (925) 933-2709
- Medicare enrollment
- Enrolled (PECOS I20080310000624); accepts Medicare assignment
- Medical or professional school
- Wayne State University School Of Medicine, 2002
- Entity
- Type 1 · individual
8 nearest orthopaedic foot and ankle surgery physician records → All 71 in California → Look up another NPI →
Also registered at 2625 Shadelands Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Desiree AgostoFamily Nurse Practitioner1235907197
- James Albertson, DPTOrthopedic Physical Therapist1558919944
- Afshin AnoushiravaniOrthopaedic Surgery Physician1003310293
- Audrielle Angela Asuncion, OTR/LHand Occupational Therapist1689455016
- Lauren Baker, OTRHand Occupational Therapist1114669322
- Jason BalaoingHand Occupational Therapist1144714288
Verify Joseph Xavier Kou in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A99887Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
About as many Medicare Part D claims as the average orthopaedic foot and ankle surgery physician in 2024
224 Medicare Part D claims for 105 beneficiaries, against an average of 225 among the 648 providers of this specialty who prescribed in Part D. 80 claims were for opioids.
Most prescribed
- Cephalexin78 claims
- Hydrocodone-Acetaminophen56 claims
- Celecoxib24 claims
- Oxycodone-Acetaminophen17 claims
- Naproxen14 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.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $104.75
4 payments; by number, the most common kind was food and beverage; the largest payer was Stryker Corporation. The 643 providers of this specialty with any payment received $23,314.63 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 one group practice
- Golden State Orthopedics And SpineBrentwood, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Joseph Xavier Kou among 71 orthopaedic foot and ankle surgery physician records in California
Joseph Xavier Kou, M.D. is one of 71 orthopaedic foot and ankle surgery physician records with a practice address in California. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 37% of them.
- NPI issued2007 · 37% of these records are older, 52% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2002 · median 2008 among the 51 with a school on file
- Record last updated2025 · 39% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207XX0004X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Orthopaedic Foot and Ankle Surgery Physician providers in California
There are 71 orthopaedic foot and ankle surgery physician records in California.
All 71 in California → Every provider in Walnut Creek → Orthopaedic Foot and Ankle Surgery Physician nationwide →
The 8 orthopaedic foot and ankle surgery physician records with the nearest ZIP codes
- Murali Moorthy, M.D.Walnut Creek, CA 945981285683169
- Lc Loggins, DPMOakland, CA 946051508333758
- Christopher Nguyen, DPMVallejo, CA 945891255909958
- Jessica SibalVallejo, CA 945891467083758
- Roger Mann, M.D.Oakland, CA 946121962449058
- Timothy Dutra, DPMSan Leandro, CA 945781588650162
- Jacqueline Nguyen, MDNapa, CA 945581609111665
- Mark Reiley, MDBerkeley, CA 947051578595468
Common questions
What is Joseph Xavier Kou, M.D.'s NPI number?
Joseph Xavier Kou, M.D.'s National Provider Identifier (NPI) is 1518175868, issued on May 18, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Joseph Xavier Kou, M.D. located?
The NPPES record lists a practice address at 2625 Shadelands Dr, Walnut Creek, CA, 94598. Phone: (925) 939-8585. Providers update this record themselves, so call before visiting.
How can I verify Joseph Xavier Kou, M.D.'s license?
NPPES lists California license number A99887, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Joseph Xavier Kou, M.D. prescribe under Medicare Part D?
In 2024, Joseph Xavier Kou, M.D. had 224 Medicare Part D claims for 105 beneficiaries; the average among orthopaedic foot and ankle surgery physician prescribers was 225. Part D covers Medicare prescriptions only.
What is Joseph Xavier Kou, M.D.'s MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.