NPPES file of Aug 9, 2026

Kai Uwe Mazur, M.D.

Orthopaedic Hand Surgery Physician · Santa Rosa, CA

Kai Uwe Mazur, M.D. is an orthopaedic hand surgery physician with a practice address in Santa Rosa, California, and NPI 1558304188, issued on Jun 13, 2006. Check the license (California G72305, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1558304188
Name
Kai Uwe Mazur
Credential
M.D.
Primary taxonomy
Orthopaedic Hand Surgery Physician 207XS0106X
License number
G72305 CA
Self-reported in NPPES; status is on the state search
Practice location
1405 Montgomery Dr, Santa Rosa, CA 95405
Phone
(707) 546-1922
Enumerated
Jun 13, 2006
Record last updated
Sep 17, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(707) 546-1987
Medicaid ID
00G723050 CA
Medicare enrollment
Enrolled (PECOS I20080626000566); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 1405 Montgomery Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Christian Athanassious, M.D.Orthopaedic Surgery Physician1043471279
  2. Carolyn Bartlett, O.T., C.H.T.Hand Occupational Therapist1023176450
  3. Thomas Degenhardt, M.D.Orthopaedic Surgery Physician1073556635
  4. Rodney Dekleuver, PHYSICIAN ASSISTANTPhysician Assistant1487118105
  5. Patricia Hall, RPTPhysical Therapist1588876049
  6. Jennifer Henshaw-Lefever, PA, O.T.Physician Assistant1891997227

Verify Kai Uwe Mazur in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G72305
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

4% more Medicare Part D claims than the average orthopaedic hand surgery physician in 2024

193 Medicare Part D claims for 107 beneficiaries, against an average of 186 among the 2,203 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 15 claims were for opioids.

  1. Kai Mazur193
  2. Specialty average186

Most prescribed

  1. Meloxicam110 claims
  2. Ibuprofen25 claims
  3. Gabapentin14 claims
  4. Oxycodone Hcl11 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 MIPS final score for 2023 (Medicare payment program): 83.9 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score70.7
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $114.16

5 payments; by number, the most common kind was food and beverage; the largest payer was Stryker Corporation. The 1,819 providers of this specialty with any payment received $5,529.86 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Kai Mazur$114.16
  2. Specialty average$5,529.86

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Pnc Msk PCSanta Rosa, CA
  2. Sutter Bay Medical FoundationSanta Rosa, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Kai Uwe Mazur among 288 orthopaedic hand surgery physician records in California

Kai Uwe Mazur, M.D. is one of 288 orthopaedic hand 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 2006, is newer than 11% of them.

  • NPI issued2006 · 11% of these records are older, 52% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 74% of these records are
  • Graduated1990 · median 2004 among the 214 with a school on file
  • Record last updated2013 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207XS0106X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Orthopaedic Hand Surgery Physician providers in California

There are 288 orthopaedic hand surgery physician records in California.

The 8 orthopaedic hand surgery physician records with the nearest ZIP codes

  1. Dominic Mintalucci, M.D.Santa Rosa, CA 954051114126869
  2. Anjali Murthy, MDSanta Rosa, CA 954031932394640
  3. Thomas McDonald, M.D.Sonora, CA 953701073504320
  4. Michael Moore, M.D.Healdsburg, CA 954481356329577
  5. Todd Smith, M.D.Modesto, CA 953551104875517
  6. Monica Wood, MDModesto, CA 953551740363605
  7. Joel Frazier, MDModesto, CA 953501366448466
  8. Tracy Bigelow, D.O.Stockton, CA 952091578662342

Common questions

What is Kai Uwe Mazur, M.D.'s NPI number?

Kai Uwe Mazur, M.D.'s National Provider Identifier (NPI) is 1558304188, issued on Jun 13, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Kai Uwe Mazur, M.D. located?

The NPPES record lists a practice address at 1405 Montgomery Dr, Santa Rosa, CA, 95405. Phone: (707) 546-1922. Providers update this record themselves, so call before visiting.

How can I verify Kai Uwe Mazur, M.D.'s license?

NPPES lists California license number G72305, 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 Kai Uwe Mazur, M.D. prescribe under Medicare Part D?

In 2024, Kai Uwe Mazur, M.D. had 193 Medicare Part D claims for 107 beneficiaries; the average among orthopaedic hand surgery physician prescribers was 186. Part D covers Medicare prescriptions only.

What is Kai Uwe Mazur, M.D.'s MIPS final score?

The 2023 MIPS final score is 83.9 of 100. 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.