DR. KAI UWE MAZUR M.D.
NPI 1558304188
Orthopaedic Surgery - Hand Surgery in Santa Rosa, CA

Q: What is Kai Mazur's NPI number?

The NPI number for Kai Mazur is 1558304188. It was assigned to this individual provider in the NPPES registry on June 13, 2006.

Q: What is Kai Mazur's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery, specializing in Hand Surgery, with taxonomy code 207XS0106X.

Q: When was this NPI record last updated?

The NPPES record for Kai Mazur was last updated on September 17, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since June 13, 2006PECOS EnrolledAccepts Medicare Assignment

83.87/100

CMS Quality Rating

1405 MONTGOMERY DR, SANTA ROSA, CA 95405(707) 546-1922(707) 546-1987 Get Directions Write a Review

NPPES record last updated: September 17, 2013. Verified against the NPPES registry weekly; last sync: October 25, 2026.

On this page

About Dr. Kai Uwe Mazur M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. KAI UWE MAZUR M.D. (NPI 1558304188) is an individual hand surgery provider in Santa Rosa, California, licensed in California (G72305) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1990).

NPPES Registry Identity

NPI1558304188

Entity TypeIndividualMale

Primary Taxonomy207XS0106X

Provider Legal NameDR. KAI UWE MAZURCredential: M.D.

Location Address1405 MONTGOMERY DRSanta Rosa, CA 95405-4557

Mailing Address1405 Montgomery DrSanta Rosa, CA 95405-4557 · (707) 546-1922 · Fax (707) 546-1987

Phone(707) 546-1922

Fax(707) 546-1987

Sole ProprietorNo

Medical School CMSOtherGraduated 1990

Enumeration DateJune 13, 2006

Last NPPES UpdateSeptember 17, 2013

✔ NPI 1558304188 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyOrthopaedic Surgery · Hand SurgeryAllopathic & Osteopathic Physicians

Taxonomy Code207XS0106X

License✔ Licensed in CA · G72305

Definition

An orthopaedic surgeon trained in the investigation, preservation and restoration by medical, surgical and rehabilitative means of all structures of the upper extremity directly affecting the form and function of the hand and wrist.

Also ListedOrthopaedic SurgeryTaxonomy 207X00000X · License G72305 (CA)

1405 MONTGOMERY DR, Santa Rosa, CA 95405

Open in Google Maps ↗

Other Identifiers 6

Medicare UPING01364CA

Medicaid00G723050CA

Medicare PIN200034826CA

Medicare PIN00G723051CA

Other00G723050CA · Cigna Dme

OtherG72305CA · License

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Kai Uwe Mazur M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8123070760

PECOS Enrollment IDI20080626000566

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Kai Mazur reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Pnc Msk, PC

2.5 mi

Orthopaedic Surgery

3536 MENDOCINO AVE STE 300B
Santa Rosa, CA 95403

Reassigned Medicare billing, California enrollment
12 clinicians in this Medicare group

NPI 1770216855 (707) 237-3410

Sutter Bay Medical Foundation

48 mi

Multi-Specialty

12 CAMINO ENCINAS
Orinda, CA 94563

Reassigned Medicare billing, California enrollment
4,479 clinicians in this Medicare group

NPI 1366898538 (510) 204-8180

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 25

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg J0702

This injection contains two medications, betamethasone acetate and betamethasone sodium phosphate. It is used to reduce inflammation and pain. It's given by a healthcare professional, often directly into the area causing discomfort.

896 services233 patients

X-ray of hand, minimum of 3 views 73130

An X-ray of the hand, minimum of 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the bones in your hand from different angles. This helps in diagnosing fractures, infections, arthritis, or other abnormalities. It's quick and painless.

368 services295 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

287 services231 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

241 services241 patients

X-ray of wrist, minimum of 3 views 73110

An X-ray of the wrist, minimum of 3 views, is a diagnostic procedure that uses radiation to create images of your wrist from different angles. This helps detect fractures, infections, or other abnormalities for accurate diagnosis and treatment planning.

201 services168 patients

Injection into tendon or ligament 20550

An injection into a tendon or ligament involves placing medication directly into these areas to help reduce inflammation and pain. It's often used for conditions like arthritis or tendonitis. The procedure is quick and usually involves a local anesthetic.

146 services109 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

126 services110 patients

Aspiration and/or injection of fluid from medium joint 20605

This procedure involves a needle being inserted into a medium-sized joint, such as a knee or shoulder, to remove (aspirate) excess fluid. Sometimes, medication may also be injected into the joint to reduce inflammation and pain.

81 services73 patients

Release and/or relocation of hand nerve 64721

This procedure involves adjusting or moving a nerve in your hand to alleviate discomfort or improve function. The nerve may be compressed, causing pain or numbness. By releasing or relocating the nerve, these symptoms can be reduced, enhancing hand usage.

78 services69 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

57 services57 patients

Incision of tendon covering of finger 26055

This procedure involves making a small cut into the protective sheath around a finger tendon. It's typically done to relieve pressure or inflammation, improve finger movement, or treat conditions like trigger finger. It's a safe, often outpatient procedure.

52 services42 patients

Aspiration and/or injection of fluid from small joint 20600

This procedure involves inserting a thin needle into a small joint to remove (aspirate) or inject fluid. It can help diagnose conditions, relieve discomfort, or administer medication directly into the joint. It's generally safe with minimal discomfort.

40 services29 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

38 services36 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

32 services32 patients

Aspiration and/or injection of fluid from large joint 20610

This procedure involves using a needle to remove (aspiration) or introduce (injection) fluid into a large joint like the knee or hip. It can help diagnose conditions, relieve discomfort, or deliver medication directly to the joint.

31 services28 patients

Aspiration and/or injection of cyst of tendon 20612

Aspiration and/or injection of a tendon cyst is a procedure where a needle is used to remove fluid from a cyst located in a tendon. In some cases, medication might be injected to help reduce inflammation and alleviate pain.

31 services26 patients

X-ray of finger, minimum of 2 views 73140

An X-ray of the finger involves capturing images of your finger from at least two different angles. This non-invasive procedure helps in visualizing the bones and joints, aiding in the diagnosis of fractures, infections, or other abnormalities. Minimal discomfort may be experienced.

28 services24 patients

Transfer of tendon to back of hand 26480

A transfer of tendon to the back of the hand is a surgical procedure aimed at improving hand function. It involves moving a healthy tendon from one area to another to replace a damaged or non-functioning one, helping to restore movement and strength.

26 services22 patients

X-ray of elbow, minimum of 3 views 73080

An elbow X-ray with a minimum of 3 views is a non-invasive imaging test. It helps visualize the bones of the elbow from different angles. This aids in diagnosing conditions like fractures or arthritis. The procedure is quick, painless, and usually takes around 15 minutes.

24 services22 patients

Injection of carpal tunnel 20526

An injection for carpal tunnel is a treatment to reduce inflammation and swelling in your wrist, which can alleviate pain and numbness. The doctor injects a steroid medication into your wrist area to provide relief.

20 services19 patients

Removal of bone joints between wrist and fingers 25447

This procedure involves the surgical removal of bone joints between your wrist and fingers. It's typically done to relieve pain or restore function due to conditions like arthritis. After removal, the space may be filled with a graft or artificial joint.

20 services18 patients

Incision or the tendon covering on the top side of the wrist 25000

This procedure involves making a small cut on the top side of your wrist to access the tendon covering. It can alleviate pain or improve mobility. You may experience temporary discomfort but it's a common, safe procedure.

19 services18 patients

Aspiration and/or injection of fluid from small joint 20600

18 services13 patients

Removal of connective tissue of palm and release of finger, first digit 26123

This procedure involves removing certain tissue in your palm to alleviate tension, and releasing the first digit (thumb) if it's constricted. It's done to improve hand function and reduce discomfort. It's a common treatment for conditions like Dupuytren's contracture.

18 services18 patients

Injection into tendon or ligament 20550

12 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95405 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$96.16 typical visit price

range $63.04 – $187.01

Typical copayment $24.04 (range $15.76 – $46.75)

Most-billed visit code 99203

Established Patient

$77.94 typical visit price

range $21.02 – $153.40

Typical copayment $19.48 (range $5.25 – $38.35)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

83.87/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Individually scored

Quality

70.68

Promoting Interoperability

100

Improvement Activities

Reported Quality Measures

Closing the Referral Loop: Receipt of Specialist Report

2%409 patients1/55-star benchmark: 87%

Diabetes: Hemoglobin A1c (HbA1c) Poor Control (>9%)

Lower rates are better for this measure.

96%23 patients1/55-star benchmark: 91%

Documentation of Current Medications in the Medical Record

97%2,509 patients4/55-star benchmark: 100%

Falls: Screening for Future Fall Risk

14%855 patients1/55-star benchmark: 100%

Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan

31%1,663 patients2/55-star benchmark: 98%

Preventive Care and Screening: Screening for High Blood Pressure and Follow-Up Documented

0%1,875 patients1/55-star benchmark: 61%

Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention

Patients combinedPopulations: 56% · 971 patients

Patients screened: 56% · 971 patients

100%31 patients5/55-star benchmark: 100%

Provide Patients Electronic Access to Their Health Information

84%719 patients4/55-star benchmark: 100%

Statin Therapy for the Prevention and Treatment of Cardiovascular Disease

74%23 patients3/55-star benchmark: 91%

Use of High-Risk Medications in Older Adults

Lower rates are better for this measure.

Patients appropriateDiagnosis: 0% · 896 patients

Patients totalRate: 0% · 896 patients

0%896 patients5/55-star benchmark: 100%

Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Referred Medical Equipment & Supplies CMS DME claims 5

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Wrist hand finger orthosis, rigid without joints, may include soft interface material; straps, custom fabricated, includes fitting and adjustment L3808

DME-Orthotic Devices · category DF000N

1 supplier13 claims13 services$337.83 avg. paid by Medicare

Wrist hand orthosis, without joints, may include soft interface, straps, custom fabricated, includes fitting and adjustment L3906

DME-Orthotic Devices · category DF000N

1 supplier33 claims33 services$402.54 avg. paid by Medicare

Wrist hand orthosis, wrist extension control cock-up, non molded, prefabricated, off-the-shelf L3908

DME-Orthotic Devices · category DF000N

1 supplier23 claims28 services$57.43 avg. paid by Medicare

Hand finger orthosis, without joints, may include soft interface, straps, custom fabricated, includes fitting and adjustment L3913

DME-Orthotic Devices · category DF000N

1 supplier17 claims17 services$201.03 avg. paid by Medicare

Hand finger orthosis, without joints, may include soft interface, straps, prefabricated, off-the-shelf L3924

DME-Orthotic Devices · category DF000N

1 supplier24 claims32 services$62.94 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 16

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

CAROLYN BARTLETT O.T., C.H.T.

Occupational Therapist (Hand)