DR. KENNETH C HSIAO MD
NPI 1265427975
Urology in Walnut Creek, CA

Q: What is Kenneth Hsiao's NPI number?

The NPI number for Kenneth Hsiao is 1265427975. It was assigned to this individual provider in the NPPES registry on September 19, 2005.

Q: What is Kenneth Hsiao's specialty?

The primary specialty registered for this NPI is Urology with taxonomy code 208800000X.

Q: When was this NPI record last updated?

The NPPES record for Kenneth Hsiao was last updated on February 7, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 months 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 September 19, 2005PECOS EnrolledAccepts Medicare Assignment

355 LENNON LN, SUITE 205, WALNUT CREEK, CA 94598(925) 935-0627(925) 935-3547 Get Directions Write a Review

NPPES record last updated: February 7, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

On this page

About Dr. Kenneth C Hsiao Md NPPES

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

DR. KENNETH C HSIAO MD (NPI 1265427975) is an individual urology provider in Walnut Creek, California, licensed in California (A101408) and active in the NPI registry since September 2005. He is enrolled in Medicare PECOS and is a graduate of Warren Alpert Medical School Of Brown University (1999).

NPPES Registry Identity

NPI1265427975

Entity TypeIndividualMale

Primary Taxonomy208800000X

Provider Legal NameDR. KENNETH C HSIAOCredential: MD

Location Address355 LENNON LN, SUITE 205Walnut Creek, CA 94598-2418

Mailing Address355 Lennon Ln Ste 205Walnut Creek, CA 94598-2475 · (925) 935-0627 · Fax (925) 935-3547

Phone(925) 935-0627

Fax(925) 935-3547

Sole ProprietorNo

Medical School CMSWarren Alpert Medical School Of Brown UniversityGraduated 1999

Enumeration DateSeptember 19, 2005

Last NPPES UpdateFebruary 7, 2025

NPPES CertifiedFebruary 7, 2025

✔ NPI 1265427975 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyUrologyAllopathic & Osteopathic Physicians

Taxonomy Code208800000X

License✔ Licensed in CA · A101408

Definition

A urologist manages benign and malignant medical and surgical disorders of the genitourinary system and the adrenal gland. This specialist has comprehensive knowledge of and skills in endoscopic, percutaneous and open surgery of congenital and acquired conditions of the urinary and reproductive systems and their contiguous structures.

355 LENNON LN, Walnut Creek, CA 94598

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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. Kenneth C Hsiao Md 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 ID8224009535

PECOS Enrollment IDI20080304000926

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 Kenneth Hsiao reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Bay Area Surgical Specialists Inc A Medical Corporation

0.5 mi

Magnetic Resonance Imaging (MRI)

2637 SHADELANDS DR
Walnut Creek, CA 94598

Reassigned Medicare billing, California enrollment
Medicare enrollment name: Bass Medical Group
347 clinicians in this Medicare group

NPI 1023501905 (925) 329-3710

John Muir Trauma Physicians Billing Service

1.1 mi

Trauma Surgery

1601 YGNACIO VALLEY RD
Walnut Creek, CA 94598

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

NPI 1962551861 (925) 947-5331

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 26

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, onabotulinumtoxina, 1 unit J0585

Onabotulinumtoxina, also known as Botox, is a medication injected into muscles. It's used to treat various conditions by blocking nerve activity in the muscles, causing a temporary reduction in muscle activity. The units refer to the dosage.

5,000 services32 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.

852 services461 patients

Unclassified drugs J3490

Unclassified drugs are medications that don't fit into an existing category or class due to their unique properties or uses. They may be used for various conditions and their effects may differ widely. Always ask your healthcare provider for more information about these drugs.

684 services41 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.

675 services437 patients

Ultrasound measurement of bladder capacity after voiding 51798

Ultrasound measurement of bladder capacity after voiding is a non-invasive test that uses sound waves to create images of your bladder. It's done after you've emptied your bladder to see if there's any leftover urine, which can help diagnose certain conditions.

636 services457 patients

Electronic assessment of bladder emptying 51741

Electronic assessment of bladder emptying is a non-invasive test that measures how well your bladder functions. It uses ultrasound technology to create images of your bladder before and after you use the restroom, helping to identify any issues with bladder emptying.

427 services332 patients

Urinalysis, manual test 81002

A urinalysis is a simple, non-invasive test that checks the urine for various elements such as sugar, protein, and signs of infection. It can help detect many common conditions, including kidney disease and diabetes. The manual test involves a lab technician examining a urine sample.

292 services185 patients

Insertion of lower leg neurostimulator electrode 64566

The insertion of a lower leg neurostimulator electrode is a procedure where a small device is placed under your skin. This device sends mild electrical signals to nerves in the lower leg, helping to manage chronic pain. It's a safe, minimally invasive procedure.

172 services21 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.

141 services141 patients

Diagnostic exam of bladder and urethra using an endoscope 52000

This procedure involves using a thin, flexible tube with a light, called an endoscope, to examine the bladder and urethra. It helps in identifying any abnormalities or issues that may be causing discomfort or other symptoms.

135 services116 patients

Placement of hormone pellet under skin 11980

The placement of a hormone pellet under the skin is a simple procedure. A small pellet is inserted under the skin, usually in the hip area. This pellet slowly releases hormones into your body to help balance hormone levels. It's a safe, effective way to manage hormone-related conditions.

117 services42 patients

Simple repair of surface wound of scalp, neck, underarms, trunk, arms, or legs, 2.5 cm or less 12001

This is a procedure to fix a minor wound on your scalp, neck, underarms, trunk, arms, or legs that is 2.5 cm or less. It involves cleaning, and then stitching or gluing the wound to help it heal properly and minimize scarring.

117 services42 patients

Leuprolide acetate (for depot suspension), 7.5 mg J9217

Leuprolide acetate is a medication that helps regulate certain hormone levels in your body. It's injected into your muscle once a month. This treatment can help manage various health conditions related to hormone imbalance. Always follow your doctor's instructions.

117 services16 patients

Simple bladder irrigation and/or instillation 51700

Bladder irrigation and/or instillation is a process where a sterile solution is introduced into the bladder to cleanse it or deliver medication. This procedure helps manage certain bladder conditions, ensuring optimal bladder health.

106 services56 patients

Exam with injections of chemical for destruction of bladder using an endoscope 52287

This procedure involves the use of a thin, flexible tube with a light (endoscope) for internal examination. A chemical is then injected to help eliminate specific issues in the bladder. It's a standard and safe process.

45 services32 patients

Insertion of temporary bladder tube 51701

This procedure involves placing a small tube into your lower abdomen to help drain urine from your bladder. It's a temporary measure, often used when normal urination is not possible. The tube remains in place until you can urinate on your own again.

40 services31 patients

Administration of hormonal anti-neoplastic chemotherapy under skin or into muscle 96402

This procedure involves the injection of hormone-based anti-cancer drugs under the skin or into a muscle. These medications help to slow down or stop the growth of certain types of cancer cells. The process is usually quick and can be performed in a clinic or hospital.

35 services21 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.

33 services29 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.

25 services25 patients

Imaging of urinary tract following injection of a contrast agent 74420

This procedure involves injecting a contrast agent into your body to help highlight the urinary tract during imaging. The contrast agent makes your urinary tract more visible on the images, providing detailed information about its structure and function. This can help in diagnosing any potential issues.

17 services15 patients

Biopsy of prostate gland 55700

A biopsy of the prostate gland is a procedure where a small sample of tissue is taken from your body's internal gland, located near the bladder, for testing. This helps in diagnosing potential health issues. It's usually done with a fine needle and imaging technology for accuracy.

15 services15 patients

Ultrasound scan of pelvic region through rectum 76872

An ultrasound scan of the pelvic region through the rectum is a medical procedure where a small, smooth device is gently inserted into the rectum. This device uses sound waves to create images of the internal structures in the lower abdomen, aiding in diagnosis and treatment planning.

15 services15 patients

Review by radiologist of mri guidance for needle placement 77021

This procedure involves a radiologist examining MRI images to accurately guide a needle's placement within the body. It's crucial for procedures requiring precision, such as taking tissue samples or delivering medication.

15 services15 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

13 services11 patients

Injection procedure to cause erection 54235

This procedure involves administering a medication into your body to stimulate blood flow. It's designed to aid specific physical responses, similar to how adrenaline can increase heart rate. The medication is introduced via a small needle, and the effects typically occur shortly after.

12 services11 patients

Ultrasound scan of pelvic region through rectum 76872

12 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94598 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

$153.83 typical visit price

range $69.00 – $202.35

Typical copayment $38.45 (range $17.25 – $50.58)

Most-billed visit code 99204

Established Patient

$84.91 typical visit price

range $23.44 – $166.46

Typical copayment $21.22 (range $5.86 – $41.61)

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.

Reported Quality Measures

Breast Cancer Screening

Percentage of women 50-74 years of age who had a mammogram to screen for breast cancer

72%304 patients4/55-star benchmark: 92%

Cervical Cancer Screening

Percentage of women 21-64 years of age who were screened for cervical cancer using either of the following criteria: - Women age 21-64 who had cervical cytology performed every 3 years - Women age 30-64 who had cervical cytology/human papillomavirus (HPV)…

56%168 patients

Closing the Referral Loop: Receipt of Specialist Report

Percentage of patients with referrals, regardless of age, for which the referring provider receives a report from the provider to whom the patient was referred

5%115 patients1/55-star benchmark: 95%

Colorectal Cancer Screening

Percentage of adults 50-75 years of age who had appropriate screening for colorectal cancer

51%1,097 patients3/55-star benchmark: 85%

Diabetes: Medical Attention for Nephropathy

The percentage of patients 18-75 years of age with diabetes who had a nephropathy screening test or evidence of nephropathy during the measurement period

92%224 patients4/55-star benchmark: 99%

Documentation of Current Medications in the Medical Record

Percentage of visits for patients aged 18 years and older for which the eligible professional or eligible clinician attests to documenting a list of current medications using all immediate resources available on the date of the encounter.

79%4,162 patients2/55-star benchmark: 100%

e-Prescribing

At least one permissible prescription written by the MIPS eligible clinician is queried for a drug formulary and transmitted electronically using certified EHR technology.

97%2,322 patients4/55-star benchmark: 99%

Falls: Screening for Future Fall Risk

Percentage of patients 65 years of age and older who were screened for future fall risk during the measurement period

43%1,188 patients2/55-star benchmark: 99%

Health Information Exchange

The MIPS eligible clinician that transitions or refers their patient to another setting of care or health care clinician (1) uses CEHRT to create a summary of care record; and (2) electronically transmits such summary to a receiving health care clinician for…

15%104 patients1/55-star benchmark: 88%

Medication Reconciliation

The MIPS eligible clinician performs medication reconciliation for at least one transition of care in which the patient is transitioned into the care of the MIPS eligible clinician.

77%3,665 patients1/55-star benchmark: 100%

Patient-Specific Education

The MIPS eligible clinician must use clinically relevant information from CEHRT to identify patient-specific educational resources and provide access to those materials to at least one unique patient seen by the MIPS eligible clinician.

96%1,689 patients4/55-star benchmark: 97%

Pneumococcal Vaccination Status for Older Adults

Percentage of patients 65 years of age and older who have ever received a pneumococcal vaccine

69%1,209 patients4/55-star benchmark: 90%

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

Percentage of patients aged 18 years and older with a BMI documented during the current encounter or during the previous twelve months AND with a BMI outside of normal parameters, a follow-up plan is documented during the encounter or during the previous…

67%2,018 patients3/55-star benchmark: 97%

Preventive Care and Screening: Influenza Immunization

Percentage of patients aged 6 months and older seen for a visit between October 1 and March 31 who received an influenza immunization OR who reported previous receipt of an influenza immunization

50%1,768 patients3/55-star benchmark: 88%

Preventive Care and Screening: Screening for Depression and Follow-Up Plan

Percentage of patients aged 12 years and older screened for depression on the date of the encounter using an age appropriate standardized depression screening tool AND if positive, a follow-up plan is documented on the date of the positive screen

29%1,675 patients2/55-star benchmark: 96%

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

Percentage of patients aged 18 years and older who were screened for tobacco use one or more times within 24 months AND who received tobacco cessation intervention if identified as a tobacco user

Patients screenedForUse: 97% · 891 patients

Patients tobacco: 91% · 891 patients

6%54 patients1/55-star benchmark: 98%

Provide Patient Access

At least one patient seen by the MIPS eligible clinician during the performance period is provided timely access to view online, download, and transmit to a third party their health information subject to the MIPS eligible clinician's discretion to withhold…

98%2,094 patients4/55-star benchmark: 100%

Secure Messaging

For at least one unique patient seen by the MIPS eligible clinician during the performance period, a secure message was sent using the electronic messaging function of CEHRT to the patient (or the patient-authorized representative), or in response to a secure…

46%2,094 patients3/55-star benchmark: 89%

Use of High-Risk Medications in the Elderly

Percentage of patients 65 years of age and older who were ordered high-risk medications. Two rates are submitted. 1) Percentage of patients who were ordered at least one high-risk medication.

Lower rates are better for this measure.

Patients 2+: 1% · 1,209 patients

1%1,209 patients4/55-star benchmark: 100%

View, Download, or Transmit (VDT)

At least one patient seen by the MIPS eligible clinician during the performance period (or patient-authorized representative) views, downloads or transmits their health information to a third party during the performance period.

58%2,094 patients

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.

Urinary catheter anchoring device, adhesive skin attachment, each A4333

DME-Orthotic Devices · category DF000N

1 supplier17 claims17 services$2.15 avg. paid by Medicare

Urinary catheter anchoring device, leg strap, each A4334

DME-Orthotic Devices · category DF000N

1 supplier16 claims16 services$4.77 avg. paid by Medicare

Intermittent urinary catheter; straight tip, with or without coating (teflon, silicone, silicone elastomer, or hydrophilic, etc.), each A4351

DME-Orthotic Devices · category DF008N

5 suppliers61 claims12,640 services$1.45 avg. paid by Medicare

Intermittent urinary catheter, with insertion supplies A4353

DME-Orthotic Devices · category DF008N

1 supplier13 claims4,170 services$6.77 avg. paid by Medicare

Urinary drainage bag, leg or abdomen, vinyl, with or without tube, with straps, each A4358

DME-Orthotic Devices · category DF000N

1 supplier13 claims28 services$6.32 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 4

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

ALEXANDRA ALABATA INGRAM P.A.

Physician Assistant (Surgical)

355 LENNON LN, SUITE 295
WALNUT CREEK, CA 94598

Contra Costa County (925) 357-9786

DR. JEFFREY THOMAS BORTZ M.D.

Dermatology (MOHS-Micrographic Surgery)

355 LENNON LN, SUITE 355
WALNUT CREEK, CA 94598

Contra Costa County (925) 932-7704

VITAS HEALTHCARE CORPORATION OF CALIFORNIA

Hospice Care, Community Based

355 LENNON LN, SUITE 150
WALNUT CREEK, CA 94598

Contra Costa County (925) 930-9373

DR. TIFFANY HSU HAM D.D.S., M.S.

Dentist (Pediatric Dentistry)

355 LENNON LN, #215
WALNUT CREEK, CA 94598

Contra Costa County (925) 482-6223

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Kenneth Hsiao's NPI number?

The NPI number for Kenneth Hsiao is 1265427975. It was assigned to this individual provider in the NPPES registry on September 19, 2005.

Where is Kenneth Hsiao located?

Kenneth Hsiao practices at 355 Lennon Ln Suite 205, Walnut Creek, CA 94598. The listed phone number is (925) 935-0627.

What is Kenneth Hsiao's specialty?

The primary specialty registered for this NPI is Urology with taxonomy code 208800000X.

Is Kenneth Hsiao enrolled in Medicare?

Yes. Kenneth Hsiao is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Kenneth Hsiao's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Kenneth Hsiao reassigns Medicare benefits to 2 organizations: Bay Area Surgical Specialists Inc A Medical Corporation (Walnut Creek, CA) and John Muir Trauma Physicians Billing Service (Walnut Creek, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Kenneth Hsiao's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Kenneth Hsiao was last updated on February 7, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 months 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.