William Gunter Loudon, MD is a medicare enrolled "Neurological Surgery" physician in Laguna Niguel, California. He went to University Of Texas Medical School At Houston and graduated in 1991 and has 35 years of diverse experience with area of expertise as Pediatric Medicine. He is a member of the group practice Childrens Hospital Of Orange County and his current practice location is
30131 Town Center Dr Ste 195, Laguna Niguel, California. You can reach out to his office (for appointments etc.) via phone at
(714) 677-9463.
William Gunter Loudon is licensed to practice in California (license number A72588) and he also participates in the medicare program. He
accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1437265816.
Physician's Profile
| Full Name | William Gunter Loudon |
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| Gender | Male |
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| Speciality | Pediatric Medicine |
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| Experience | 35 Years |
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| Location | 30131 Town Center Dr Ste 195, Laguna Niguel, California |
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| Accepts Medicare Assignments | Yes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance. |
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Medical Education and Training:
- William Gunter Loudon attended and graduated from University Of Texas Medical School At Houston in 1991
NPI Data:
- NPI Number: 1437265816
- Provider Enumeration Date: 08/21/2006
- Last Update Date: 02/12/2026
Medicare PECOS Information:
- PECOS PAC ID: 4587690086
- Enrollment ID: I20050715000885
Medical Identifiers
Medical identifiers for William Gunter Loudon such as npi, medicare ID, medicare PIN, medicaid, etc.
| Identifier | Type | State | Issuer |
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| 1437265816 | NPI | - | NPPES |
| 00A725880 | Medicaid | CA | |
Medical Taxonomies and Licenses
| Taxonomy | Type | License (State) | Status |
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| 207T00000X | Neurological Surgery | A72588 (California) | Primary |
Group Practice Association
| Group Practice Name | Group PECOS PAC ID | No. of Members |
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| Childrens Hospital Of Orange County | 6406944883 | 56 |
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 Gunter Loudon allows following entities to bill medicare on his behalf.
| Entity Name | Childrens Hospital Of Orange County |
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| Entity Type | Part B Supplier - Clinic/group Practice |
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| Entity Identifiers | NPI Number: 1275975104
PECOS PAC ID: 6406944883
Enrollment ID: O20181213000428 |
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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 Gunter Loudon 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 Gunter Loudon, MD
30131 Town Center Dr Ste 195,
Laguna Niguel, CA 92677-2040
Ph: (714) 677-9463 | William Gunter Loudon, MD
30131 Town Center Dr Ste 195,
Laguna Niguel, CA 92677-2040
Ph: (714) 677-9463 |
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