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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Iwan Nyotowidjojo, M.D.

Internal Medicine Physician in Rancho Santa Margarita, CA · enumerated 2014.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1578976270

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Registry record

Entity type Individual (Type 1)
Name Iwan Nyotowidjojo
Credential M.D.
Sex Male
Practice address 29472 Avenida De Las Banderas, Rancho Santa Margarita, CA, 92688
Phone (949) 459-9968
Fax (949) 766-2565
Enumeration date Jun 10, 2014
Last updated in NPPES Jul 17, 2024

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 45679 (AL) Secondary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 01089040A (IN) Secondary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License TW-00242 (KS) Secondary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License C1300 (KY) Secondary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 334744 (LA) Secondary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License D0096206 (MD) Secondary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License MD26749 (ME) Secondary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License A167115 (CA) Primary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License CL-0025782 (DE) Secondary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 68913 (AZ) Secondary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License DR.0069772 (CO) Secondary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License R74508 (AZ) Secondary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License MD-50889 (IA) Secondary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License MC-1884 (ID) Secondary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License TPME4194 (FL) Secondary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Iwan Nyotowidjojo?
The National Provider Identifier (NPI) for Iwan Nyotowidjojo is 1578976270, a Type 1 (individual) record in the CMS NPPES registry.
Where does Iwan Nyotowidjojo practice?
The practice location on file with NPPES is in Rancho Santa Margarita, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-07-17.