SONOA HO YEE AU M.D.
NPI 1720374507
Dermatology in League City, TX

Q: What is Sonoa Au's NPI number?

The NPI number for Sonoa Au is 1720374507. It was assigned to this individual provider in the NPPES registry on June 21, 2011.

Q: What is Sonoa Au's specialty?

The primary specialty registered for this NPI is Dermatology with taxonomy code 207N00000X.

Q: When was this NPI record last updated?

The NPPES record for Sonoa Au was last updated on June 10, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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 June 21, 2011PECOS EnrolledAccepts Medicare Assignment

97.11/100

CMS Quality Rating

1615 W LEAGUE CITY PKWY STE 300, LEAGUE CITY, TX 77573(281) 665-4444(281) 325-5374 Get Directions Write a Review

NPPES record last updated: June 10, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jun 10, 2025, Dec 8, 2021, Apr 7, 2021 and 1 more (4 updates tracked since 2016).

On this page

About Sonoa Ho Yee Au M.d. NPPES

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

SONOA HO YEE AU M.D. (NPI 1720374507) is an individual dermatology provider in League City, Texas, licensed in Texas (S7995) and active in the NPI registry since June 2011. She is enrolled in Medicare PECOS, maintains 3 additional practice locations, and is a graduate of Washington University School Of Medicine (2011).

NPPES Registry Identity

NPI1720374507

Entity TypeIndividualFemale

Primary Taxonomy207N00000X

Provider Legal NameSONOA HO YEE AUCredential: M.D.

Location Address1615 W LEAGUE CITY PKWY STE 300League City, TX 77573-7458

Mailing Address801 York StManitowoc, WI 54220-4630 · (920) 663-9008 · Fax (920) 684-1439

Phone(281) 665-4444

Fax(281) 325-5374

Sole ProprietorNo

Medical School CMSWashington University School Of MedicineGraduated 2011

Enumeration DateJune 21, 2011

Last NPPES UpdateJune 10, 20254 updates tracked since enumeration

NPPES CertifiedJune 10, 2025

✔ NPI 1720374507 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDermatologyAllopathic & Osteopathic Physicians

Taxonomy Code207N00000X

License✔ Licensed in TX · S7995

Definition

A dermatologist is trained to diagnose and treat pediatric and adult patients with benign and malignant disorders of the skin, mouth, external genitalia, hair and nails, as well as a number of sexually transmitted diseases. The dermatologist has had additional training and experience in the diagnosis and treatment of skin cancers, melanomas, moles and other tumors of the skin, the management of contact dermatitis and other allergic and nonallergic skin disorders, and in the recognition of the skin manifestations of systemic (including internal malignancy) and infectious diseases. Dermatologists have special training in dermatopathology and in the surgical techniques used in dermatology. They also have expertise in the management of cosmetic disorders of the skin such as hair loss and scars and the skin changes associated with aging.

1615 W LEAGUE CITY PKWY STE 300, League City, TX 77573

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Secondary Practice Locations 3

Location 12051 Greenhouse Rd Ste 270Houston, TX 77084-7573 · Phone (281) 665-4444 · Fax (281) 392-6766

Location 21235 Lake Pointe Pkwy Ste 200Sugar Land, TX 77478-4077 · Phone (281) 665-4444 · Fax (281) 980-0177

Location 310905 Memorial Hermann Dr Ste 211Pearland, TX 77584-3490 · Phone (281) 665-4444 · Fax (281) 412-6740

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas, Oscar Insurance Company.Insurance ›

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

Sonoa Ho Yee Au 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 ID3476869710

PECOS Enrollment IDI20201112000030

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 Sonoa Au reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Forefront Dermatology, S.C.

Same address

Dermatology

1615 W LEAGUE CITY PKWY STE 300
League City, TX 77573

Reassigned Medicare billing, Texas enrollment
Medicare enrollment name: Forefront Dermatology Sc
14 clinicians in this Medicare group

NPI 1912724188 (281) 665-4444

Forefront Dermatology - Houston, PLLC

3.1 mi

Dermatology

1615 W LEAGUE CITY PKWY STE 300
League City, TX 77573

Reassigned Medicare billing, Texas enrollment
8 clinicians in this Medicare group

NPI 1487547576 (281) 665-4444

Advanced Dermatology And Skin Care PA

44 mi

Dermatology

430 S MASON RD, SUITE 101
Katy, TX 77450

Reassigned Medicare billing, Texas enrollment
7 clinicians in this Medicare group

NPI 1710917521 (281) 392-3803

Advanced Dermatology Of New Jersey PC

1,422 mi

Procedural Dermatology

1200 E RIDGEWOOD AVE
Ridgewood, NJ 07450

Reassigned Medicare billing, New Jersey enrollment
17 clinicians in this Medicare group

NPI 1225362783 (201) 493-1717

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 16

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.

Destruction of precancer skin growth, 2-14 growths 17003

This procedure involves removing 2-14 precancerous skin growths. The growths are treated to prevent them from potentially developing into skin cancer. The process is safe, with minimal discomfort, and promotes healthier skin.

760 services133 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.

275 services190 patients

Destruction of precancer skin growth, 1 growth 17000

"Destruction of precancer skin growth" is a procedure that eliminates a single precancerous skin growth. This is done to prevent it from developing into skin cancer. The growth may be removed using various methods such as cryotherapy (freezing), laser therapy, or topical medications.

264 services169 patients

Destruction of skin growth, 1-14 growths 17110

"Destruction of skin growth" refers to a procedure where 1-14 abnormal skin growths are removed. This is done using methods such as freezing, burning, or laser therapy. It helps prevent the growth from causing discomfort or turning into a more serious condition.

248 services162 patients

Biopsy of related skin growth, first growth 11102

A biopsy of a skin growth involves taking a small sample of the growth to examine it under a microscope. This helps determine if the growth is harmful. The procedure is typically quick, with minimal discomfort. It's a crucial step in ensuring your skin's health.

170 services128 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.

86 services62 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.

78 services78 patients

Biopsy of related skin growth, each additional growth 11103

A biopsy of related skin growth is a procedure where a small piece of skin growth is removed for testing. If additional growths are identified, they may also be biopsied. This helps in diagnosing skin conditions and planning appropriate treatment.

70 services48 patients

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

39 services32 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.

34 services34 patients

Destruction of precancer skin growth, 15 or more growths 17004

This procedure involves removing 15 or more precancerous skin growths to prevent them from developing into cancer. It's done using various methods like freezing, creams, or minor surgery. The goal is to protect your health by stopping cancer before it starts.

24 services19 patients

Injection, triamcinolone acetonide, not otherwise specified, 10 mg J3301

Triamcinolone acetonide is a medication used to reduce inflammation in the body. It's given as a 10 mg injection for conditions like allergies, arthritis, or skin problems. The injection helps to decrease swelling, redness, and itching.

20 services12 patients

Injection into skin growth, 1-7 growths 11900

This procedure involves injecting medication into 1-7 skin growths. The medication helps to reduce the size of the growths or completely eliminate them. It's a simple, quick, and usually painless process performed by a medical professional.

19 services11 patients

Shaving of skin growth of body, arms, or legs, 0.6-1.0 cm 11301

This procedure involves the careful removal of a small skin growth on the body, arms, or legs. It's done by shaving off the growth that's 0.6-1.0 cm in size. It's a common, safe method to treat non-cancerous skin growths and improve skin appearance.

18 services17 patients

Punch biopsy, first skin growth 11104

A punch biopsy is a procedure where a small, circular tool is used to remove a sample of skin tissue. This is usually done to test a skin growth for potential issues. You may feel a pinch, but discomfort is minimal. The area heals quickly.

15 services15 patients

New patient office or other outpatient visit with straightforward medical decision making, if using time, 15 minutes or more 99202

This service involves an initial visit to the doctor's office or other outpatient setting. It typically lasts between 15-29 minutes. The doctor will review your medical history, conduct a physical examination, and discuss your health concerns. It's a chance to establish your health baseline and address any immediate medical issues.

12 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 77573 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

$88.24 typical visit price

range $57.19 – $173.07

Typical copayment $22.06 (range $14.29 – $43.26)

Most-billed visit code 99203

Established Patient

$71.32 typical visit price

range $18.45 – $141.36

Typical copayment $17.83 (range $4.61 – $35.34)

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.

97.11/100

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

Scored as part of a group practice

Quality

95.03

Promoting Interoperability

100

Improvement Activities

Cost

95.35

Other Providers at the Same Location NPPES 3

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

FOREFRONT DERMATOLOGY - HOUSTON, PLLC

Dermatology

1615 W LEAGUE CITY PKWY STE 300
LEAGUE CITY, TX 77573

Galveston County (281) 665-4444

MRS. KENDRA E MCCARTY PA-C

Physician Assistant

1615 W LEAGUE CITY PKWY STE 300
LEAGUE CITY, TX 77573

Galveston County (281) 665-4444

FOREFRONT DERMATOLOGY, S.C.

Dermatology

1615 W LEAGUE CITY PKWY STE 300
LEAGUE CITY, TX 77573

Galveston County (281) 665-4444

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 Sonoa Au's NPI number?

The NPI number for Sonoa Au is 1720374507. It was assigned to this individual provider in the NPPES registry on June 21, 2011.

Where is Sonoa Au located?

Sonoa Au practices at 1615 W League City Pkwy Ste 300, League City, TX 77573. The listed phone number is (281) 665-4444.

What is Sonoa Au's specialty?

The primary specialty registered for this NPI is Dermatology with taxonomy code 207N00000X.

Is Sonoa Au enrolled in Medicare?

Yes. Sonoa 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.

Which organizations bill Medicare for Sonoa Au's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Sonoa Au reassigns Medicare benefits to 4 organizations: Forefront Dermatology, S.C. (League City, TX), Forefront Dermatology - Houston, PLLC (League City, TX), Advanced Dermatology And Skin Care PA (Katy, TX) and Advanced Dermatology Of New Jersey PC (Ridgewood, NJ). 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 Sonoa Au's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Sonoa Au accept?

Health plans from Blue Cross and Blue Shield of Texas and Oscar Insurance Company list Sonoa Au as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Sonoa Au was last updated on June 10, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.