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DR. ALVIN Y AU MD FACG
NPI 1477639193
Internal Medicine - Gastroenterology in Hanford, CA

Active since October 27, 2006PECOS EnrolledAccepts Medicare AssignmentCLIA 05D0945063 · Waiver
75/100
CMS Quality Rating
1360 BAILEY DR, HANFORD, CA 93230(559) 584-6499(559) 584-8124 Get Directions Write a Review

NPPES record last updated: March 10, 2015. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Alvin Y Au Md Facg NPPES

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

DR. ALVIN Y AU MD FACG (NPI 1477639193) is an individual gastroenterology provider in Hanford, California, licensed in California (A45911) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS, holds a CLIA Waiver certificate valid through April 22, 2028, and is a graduate of University Of Texas Medical School At San Antonio (1983).

NPPES Registry Identity

NPI1477639193
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameDR. ALVIN Y AUCredential: MD FACG
Location Address1360 BAILEY DRHanford, CA 93230-5921
Mailing Address1360 Bailey DrHanford, CA 93230-5921 · (559) 584-6499 · Fax (559) 584-8124
Phone(559) 584-6499
Fax(559) 584-8124
Sole ProprietorNo
Medical School CMSUniversity Of Texas Medical School At San AntonioGraduated 1983
Enumeration DateOctober 27, 2006
Last NPPES UpdateMarch 10, 2015
✔ NPI 1477639193 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in CA · A45911
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
Also ListedInternal Medicine · HepatologyTaxonomy 207RI0008X · License A45911 (CA)
1360 BAILEY DR, Hanford, CA 93230
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Other Identifiers 2

Medicaid00A459110CA
Medicare UPINA17433

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Alvin Y Au Md Facg 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 ID6305901422
PECOS Enrollment IDI20090224000356
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.

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 05D0945063

Alvin Au MD · Hanford, CA
Active · expires Apr 22, 2028
CLIA Number05D0945063
Laboratory TypePhysician Office
Certificate Effective DateApril 23, 2026
Certificate Expiration DateApril 22, 2028
Laboratory DirectorAlvin Y. Au
Laboratory Phone(559) 584-6499
Laboratory LocationAlvin Au MD1360 Bailey Drive, Hanford, CA 93230
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

Areas of Expertise CMS Part B claims 12

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.

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.
963 services640 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.
583 services424 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.
349 services349 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.
180 services180 patients
Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385
This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.
164 services162 patients
Ultrasound scan of organ tissue for measuring elasticity 76981
An ultrasound scan of organ tissue measures elasticity, or flexibility. This non-invasive procedure uses sound waves to create images of the inside of your body. It helps in assessing the health of various organs by detecting changes in their stiffness or softness.
153 services143 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 93230 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
$133.94 typical visit price
range $58.87 – $176.60
Typical copayment $33.48 (range $14.71 – $44.15)
Most-billed visit code 99204
Established Patient
$103.36 typical visit price
range $19.28 – $144.60
Typical copayment $25.84 (range $4.82 – $36.15)
Most-billed visit code 99214
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.

75/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Individually scored

Reported Quality Measures

Colorectal Cancer Screening
Percentage of adults 50-75 years of age who had appropriate screening for colorectal cancer
51%586 patients3/55-star benchmark: 85%
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.
55%1,162 patients1/55-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.
95%1,742 patients4/55-star benchmark: 100%
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
34%462 patients2/55-star benchmark: 99%
Patient-Generated Health Data
Patient-generated health data or data from a non-clinical setting is incorporated into the certified EHR technology for at least one unique patient seen by the MIPS eligible clinician during the performance period.
42%999 patients
Patient-Specific Education
The MIPS eligible clinician must use clinically relevant information from certified EHR technology to identify patient-specific educational resources and provide electronic access to those materials to at least one unique patient seen by the MIPS eligible…
78%1,250 patients4/55-star benchmark: 100%
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 tobacco: 71% · 213 patients
74%213 patients
Provide Patient Access
For at least one unique patient seen by the MIPS eligible clinician: (1) The patient (or the patient authorized representative) is provided timely access to view online, download, and transmit his or her health information; and (2) The MIPS eligible clinician…
0%1,250 patients1/55-star benchmark: 100%
Request/Accept Summary of Care
For at least one transition of care or referral received or patient encounter in which the MIPS eligible clinician has never before encountered the patient, the MIPS eligible clinician receives or retrieves and incorporates into the patient's record an…
0%234 patients1/55-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 certified EHR technology to the patient (or the patient-authorized representative), or in…
5%1,250 patients1/55-star benchmark: 75%
Send a Summary of Care
For at least one transition of care or referral, the MIPS eligible clinician that transitions or refers their patient to another setting of care or health care provider-(1) creates a summary of care record using certified EHR technology; and (2)…
100%804 patients5/55-star benchmark: 100%
View, Download and Transmit (VDT)
During the performance period, at least one unique patient (or patient-authorized representatives) seen by the MIPS eligible clinician actively engages with the EHR made accessible by the MIPS eligible clinician.
5%1,250 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.

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 Alvin Au's NPI number?

The NPI number for Alvin Au is 1477639193. It was assigned to this individual provider in the NPPES registry on October 27, 2006.

Where is Alvin Au located?

Alvin Au practices at 1360 Bailey Dr, Hanford, CA 93230. The listed phone number is (559) 584-6499.

What is Alvin Au's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Alvin Au enrolled in Medicare?

Yes. Alvin Au 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.

Does Alvin Au hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 05D0945063) is associated with this NPI, valid through April 22, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Alvin Au was last updated on March 10, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.