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WILLIAM GUSTIN MD
NPI 1457431504
Hospitalist in San Juan Capistrano, CA

Active since October 16, 2006PECOS Enrolled
30230 RANCHO VIEJO RD, SUITE 200, SAN JUAN CAPISTRANO, CA 92675(949) 443-4303(949) 443-4033 Get Directions Write a Review

NPPES record last updated: October 6, 2014. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About William Gustin Md NPPES

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

WILLIAM GUSTIN MD (NPI 1457431504) is an individual hospitalist provider in San Juan Capistrano, California, licensed in California (000000A77418) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1457431504
Entity TypeIndividualMale
Primary Taxonomy208M00000X
Provider Legal NameWILLIAM GUSTINCredential: MD
Location Address30230 RANCHO VIEJO RD, SUITE 200San Juan Capistrano, CA 92675-1557
Mailing AddressPo Box 7087Orange, CA 92863-7087 · (714) 571-5000 · Fax (714) 571-5055
Phone(949) 443-4303
Fax(949) 443-4033
Sole ProprietorNo
Enumeration DateOctober 16, 2006
Last NPPES UpdateOctober 6, 2014
✔ NPI 1457431504 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians
Taxonomy Code208M00000X
License✔ Licensed in CA · 000000A77418
Definition
Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.
30230 RANCHO VIEJO RD, San Juan Capistrano, CA 92675
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Other Identifiers 3

Medicare PINWA77418CCA
Medicare PINWA77418BCA
Medicare PINCA120289CA

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

William Gustin Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 92675 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 11

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

PACIFIC PRIVATE PRACTICE NETWORK INC
Internal Medicine (Pulmonary Disease)
30230 RANCHO VIEJO RD, SUITE 110
SAN JUAN CAPISTRANO, CA 92675
Orange County (949) 441-5681
DR. MICHAEL ANTHONY ROVZAR M.D.
Internal Medicine (Pulmonary Disease)
30230 RANCHO VIEJO RD, SUITE 200
SAN JUAN CAPISTRANO, CA 92675
Orange County (949) 443-4303
DR. BEVERLY R HENDRICKSON MD
Pediatrics
30230 RANCHO VIEJO RD, SUITE A
SAN JUAN CAPISTRANO, CA 92675
Orange County (949) 493-7337
PALOMA MEDICAL GROUP INC
Specialist
30230 RANCHO VIEJO RD, SUITE 200
SAN JUAN CAPISTRANO, CA 92675
Orange County (949) 443-4303
DR. WILLIAM WEIMING CHANG D.O.
Internal Medicine (Pulmonary Disease)
30230 RANCHO VIEJO RD, SUITE 200
SAN JUAN CAPISTRANO, CA 92675
Orange County (714) 571-5000
RAHUL MADHAV KALE MD
Internal Medicine (Pulmonary Disease)
30230 RANCHO VIEJO RD, SUITE 200
SAN JUAN CAPISTRANO, CA 92675
Orange County (949) 443-4303
KAREN JEAN CARUSO MSN, RN, FNP-BC
Nurse Practitioner (Family)
30230 RANCHO VIEJO RD, SUITE 200
SAN JUAN CAPISTRANO, CA 92675
Orange County (949) 443-4303
SANJIVAN SINGH KOHLI MD
Internal Medicine (Pulmonary Disease)
30230 RANCHO VIEJO RD, SUITE 200
SAN JUAN CAPISTRANO, CA 92675
Orange County (949) 443-4303

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 Gustin's NPI number?

The NPI number for William Gustin is 1457431504. It was assigned to this individual provider in the NPPES registry on October 16, 2006.

Where is William Gustin located?

William Gustin practices at 30230 Rancho Viejo Rd Suite 200, San Juan Capistrano, CA 92675. The listed phone number is (949) 443-4303.

What is William Gustin's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Is William Gustin enrolled in Medicare?

Yes. William Gustin is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for William Gustin was last updated on October 6, 2014. 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.