Isabella Katherine Oldham, RDN, LDN - Dietitian in Irvine, CA

Isabella Katherine Oldham, RDN, LDN is a Dietitian, Registered based in Irvine, California. Isabella Katherine Oldham is licensed to practice in California (license number 86198144) and her current practice location is 19501 Sierra Mia Rd, Irvine, California. She can be reached at her office (for appointments etc.) via phone at (949) 648-0103.

NPI number for Isabella Katherine Oldham is 1508686023 and her current mailing address is 19501 Sierra Mia Rd, Irvine, California. She does not participate in medicare program and thus does not accept medicare assignments. Her NPI Number is 1508686023.

Contact Information

Isabella Katherine Oldham, RDN, LDN
19501 Sierra Mia Rd,
Irvine, CA 92603-3818
(949) 648-0103
Not Available

Map and Direction




Healthcare Provider's Profile

Full NameIsabella Katherine Oldham
GenderFemale
SpecialityDietitian, Registered
Location19501 Sierra Mia Rd, Irvine, California
Accepts Medicare AssignmentsDoes not participate in Medicare Program. She may not accept medicare assignment.
  NPI Data:
  • NPI Number: 1508686023
  • Provider Enumeration Date: 10/10/2024
  • Last Update Date: 10/10/2024

Medical Identifiers

Medical identifiers for Isabella Katherine Oldham such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1508686023NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
133V00000XDietitian, Registered 86198144 (California)Primary

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. Isabella Katherine Oldham is NOT enrolled with medicare and thus cannot prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Isabella Katherine Oldham, RDN, LDN
19501 Sierra Mia Rd,
Irvine, CA 92603-3818

Ph: (949) 648-0103
Isabella Katherine Oldham, RDN, LDN
19501 Sierra Mia Rd,
Irvine, CA 92603-3818

Ph: (949) 648-0103

Reviews and Comments


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Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.