William Gustin, MD is a medicare enrolled "Hospitalist" physician in San Juan Capistrano, California. His current practice location is
30230 Rancho Viejo Rd, Suite 200, San Juan Capistrano, California. You can reach out to his office (for appointments etc.) via phone at
(949) 443-4303.
William Gustin is licensed to practice in California (license number 000000A77418) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1457431504.
Physician's Profile
| Full Name | William Gustin |
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| Gender | Male |
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| Speciality | Hospitalist |
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| Location | 30230 Rancho Viejo Rd, San Juan Capistrano, California |
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| Accepts Medicare Assignments | Medicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs. |
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NPI Data:
- NPI Number: 1457431504
- Provider Enumeration Date: 10/16/2006
- Last Update Date: 10/06/2014
Medicare PECOS Information:
- PECOS PAC ID: 1052356342
- Enrollment ID: I20140728000420
Medical Identifiers
Medical identifiers for William Gustin such as npi, medicare ID, medicare PIN, medicaid, etc.
| Identifier | Type | State | Issuer |
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| 1457431504 | NPI | - | NPPES |
Medical Taxonomies and Licenses
| Taxonomy | Type | License (State) | Status |
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| 208M00000X | Hospitalist | 000000A77418 (California) | Primary |
Medicare Reassignments
Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. William Gustin allows following entities to bill medicare on his behalf.
| Entity Name | The Regents Of The University Of California-irvine |
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| Entity Type | Part B Supplier - Clinic/group Practice |
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| Entity Identifiers | NPI Number: 1154479723
PECOS PAC ID: 3971609611
Enrollment ID: O20070426000308 |
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Medicare Part D Prescriber Enrollment
Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. William Gustin is
enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.
Mailing Address and Practice Location
| Mailing Address | Practice Location Address |
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William Gustin, MD
Po Box 7087,
Orange, CA 92863-7087
Ph: (714) 571-5000 | William Gustin, MD
30230 Rancho Viejo Rd, Suite 200,
San Juan Capistrano, CA 92675-1557
Ph: (949) 443-4303 |
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