DR. WILLIAM ANG GO M.D.
NPI 1992972715
Internal Medicine - Gastroenterology in Lancaster, CA

Active since May 12, 2008PECOS EnrolledAccepts Medicare Assignment
43112 15TH ST W, LANCASTER, CA 93534(661) 726-2226 Get Directions Write a Review

NPPES record last updated: November 22, 2021. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. William Ang Go M.d. NPPES

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

DR. WILLIAM ANG GO M.D. (NPI 1992972715) is an individual gastroenterology provider in Lancaster, California, licensed in California (A62008) and active in the NPI registry since May 2008. He is enrolled in Medicare PECOS and is a graduate of Other (1991).

NPPES Registry Identity

NPI1992972715
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameDR. WILLIAM ANG GOCredential: M.D.
Location Address43112 15TH ST WLancaster, CA 93534-6219
Mailing Address43112 15th St WLancaster, CA 93534-6219
Sole ProprietorNo
Medical School CMSOtherGraduated 1991
Enumeration DateMay 12, 2008
Last NPPES UpdateNovember 22, 2021
NPI 1992972715 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License Licensed in CA · A62008
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.
43112 15TH ST W, Lancaster, CA 93534

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. William Ang Go 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 ID3476627084
PECOS Enrollment IDI20080730000729
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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 93534 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
$142.39 typical visit price
range $62.96 – $187.60
Typical copayment $35.59 (range $15.74 – $46.90)
Most-billed visit code 99204
Established Patient
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
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.

Other Providers at the Same Location NPPES 20

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

Pediatrics (Pediatric Infectious Diseases)
43112 15TH ST W
LANCASTER, CA 93534
Preventive Medicine (Occupational Medicine)
43112 15TH ST W, KOJ-KAISER PERMANENTE MEDICAL OFFICES LANCASTER
LANCASTER, CA 93534
Occupational Therapist
43112 15TH ST W
LANCASTER, CA 93534
Respiratory Therapist, Registered
43112 15TH ST W
LANCASTER, CA 93534
Internal Medicine
43112 15TH ST W
LANCASTER, CA 93534
Family Medicine (Hospice and Palliative Medicine)
43112 15TH ST W
LANCASTER, CA 93534
Nurse Practitioner (Adult Health)
43112 15TH ST W
LANCASTER, CA 93534
Internal Medicine
43112 15TH ST W
LANCASTER, CA 93534

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 William Go's NPI number?

The NPI number for William Go is 1992972715. It was assigned to this individual provider in the NPPES registry on May 12, 2008.

Where is William Go located?

William Go practices at 43112 15th St W, Lancaster, CA 93534. The listed phone number is (661) 726-2226.

What is William Go's specialty?

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

Is William Go enrolled in Medicare?

Yes. William Go 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.

When was this NPI record last updated?

The NPPES record for William Go was last updated on November 22, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.