Individual provider

Iwan Nyotowidjojo, M.D.

Internal Medicine Physician Medicare enrolled

Iwan Nyotowidjojo, M.D. is an Internal Medicine Physician in Rancho Santa Margarita, CA, registered under NPI 1578976270.

Getting there

The practice address on file is 29472 AVENIDA DE LAS BANDERAS, Rancho Santa Margarita, CA 92688. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.

29472 AVENIDA DE LAS BANDERAS, Rancho Santa Margarita, CA 92688 Open in Google Maps →

Credentials and Medicare

State licence
LicenceStateSpecialty
A167115 CA Internal Medicine Physician primary
45679 AL Internal Medicine Physician
01089040A IN Internal Medicine Physician
TW-00242 KS Internal Medicine Physician
C1300 KY Internal Medicine Physician
334744 LA Internal Medicine Physician
D0096206 MD Internal Medicine Physician
MD26749 ME Internal Medicine Physician
CL-0025782 DE Internal Medicine Physician
68913 AZ Internal Medicine Physician
DR.0069772 CO Internal Medicine Physician
R74508 AZ Internal Medicine Physician
MD-50889 IA Internal Medicine Physician
MC-1884 ID Internal Medicine Physician
TPME4194 FL Internal Medicine Physician

Licences are recorded in 14 states: CA, AL, IN, KS, KY, LA, MD, ME, DE, AZ, CO, IA, ID, FL. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.

Medicare (PECOS)
Status
Approved
Provider type
Practitioner - Internal Medicine
PAC ID
3274859970
Enrollment ID
I20200423002440

Medicare enrolment is recorded as approved under the provider type Practitioner - Internal Medicine. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.

Licensed in 14 states

This provider holds licences in 14 states: Alabama, Arizona, California, Colorado, Delaware, Florida, Iowa, Idaho, Indiana, Kansas, Kentucky, Louisiana, Maryland and Maine. The practice address on file is in Rancho Santa Margarita, CA, but a licence in another state usually means they see patients there too — either at a second location or by telehealth. If the address above is far from you, it is worth calling to ask whether they practise closer to where you live.

AL Alabama
Licence
45679
Specialty
Internal Medicine Physician
Verify with the AL board →
AZ Arizona
Licence
68913
Specialty
Internal Medicine Physician
Verify with the AZ board →
CA California practice address
Licence
A167115
Specialty
Internal Medicine Physician
Verify with the CA board →
CO Colorado
Licence
DR.0069772
Specialty
Internal Medicine Physician
Verify with the CO board →
DE Delaware
Licence
CL-0025782
Specialty
Internal Medicine Physician
Verify with the DE board →
FL Florida
Licence
TPME4194
Specialty
Internal Medicine Physician
Verify with the FL board →
IA Iowa
Licence
MD-50889
Specialty
Internal Medicine Physician
Verify with the IA board →
ID Idaho
Licence
MC-1884
Specialty
Internal Medicine Physician
Verify with the ID board →
IN Indiana
Licence
01089040A
Specialty
Internal Medicine Physician
Verify with the IN board →
KS Kansas
Licence
TW-00242
Specialty
Internal Medicine Physician
Verify with the KS board →
KY Kentucky
Licence
C1300
Specialty
Internal Medicine Physician
Verify with the KY board →
LA Louisiana
Licence
334744
Specialty
Internal Medicine Physician
Verify with the LA board →
MD Maryland
Licence
D0096206
Specialty
Internal Medicine Physician
Verify with the MD board →
ME Maine
Licence
MD26749
Specialty
Internal Medicine Physician
Verify with the ME board →

Licence numbers are self-reported to NPPES at registration. They do not confirm a licence is currently active, in good standing, or valid for the specialty shown — only the state board can tell you that, which is why we link to each one.

What Internal Medicine covers

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs. NUCC Health Care Provider Taxonomy, code 207R00000X
Allopathic & Osteopathic Physicians Internal Medicine

All registered taxonomy codes

This provider registers 15 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.

CodeSpecialtyLicenceState
207R00000X Internal Medicine Physician A167115 CA primary
207R00000X Internal Medicine Physician 45679 AL
207R00000X Internal Medicine Physician 01089040A IN
207R00000X Internal Medicine Physician TW-00242 KS
207R00000X Internal Medicine Physician C1300 KY
207R00000X Internal Medicine Physician 334744 LA
207R00000X Internal Medicine Physician D0096206 MD
207R00000X Internal Medicine Physician MD26749 ME
207R00000X Internal Medicine Physician CL-0025782 DE
207R00000X Internal Medicine Physician 68913 AZ
207R00000X Internal Medicine Physician DR.0069772 CO
207R00000X Internal Medicine Physician R74508 AZ
207R00000X Internal Medicine Physician MD-50889 IA
207R00000X Internal Medicine Physician MC-1884 ID
207R00000X Internal Medicine Physician TPME4194 FL

The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.

Full NPPES record

An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.

NPI1578976270 valid check digit
Entity typeIndividual (NPI-1)
Enumeration dateJun 10, 2014
Last updatedJul 17, 2024
StatusActive
Sole proprietorNo
CredentialM.D.
Practice address 29472 AVENIDA DE LAS BANDERAS
Rancho Santa Margarita, CA 92688
(949) 459-9968
Fax (949) 766-2565
This record was updated on Jul 17, 2024, which is recent enough that the contact details are likely still accurate.

Number check

1578976270 passes the NPI check digit test The final digit 0 matches the value computed from the first nine digits, so this is a well-formed NPI.
How the check works, step by step

Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.

Digit 8 0 8 4 0 1 5 7 8 9 7 6 2 7
Doubled? ×2 ×2 ×2 ×2 ×2 ×2 ×2
Value 8 0 8 8 0 2 5 5 8 9 7 3 2 5

Sum = 70 · next multiple of 10 = 70 · check digit = 0 · actual last digit = 0

A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.

Common questions

What is NPI number 1578976270?
NPI 1578976270 is the National Provider Identifier assigned to Iwan Nyotowidjojo, M.D. in Rancho Santa Margarita, CA. It is a 10-digit number issued by the Centers for Medicare & Medicaid Services and used on claims, referrals, and prescriptions to identify the provider.
What does Internal Medicine Physician cover?
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive…
How do I contact Iwan Nyotowidjojo, M.D.?
The phone number on file with NPPES is (949) 459-9968, last updated Jul 17, 2024. Because NPPES is only updated when a provider files a change, call ahead to confirm the number and the current practice address before visiting.
Does Iwan Nyotowidjojo, M.D. accept Medicare?
This NPI has an approved Medicare enrolment in PECOS, which means the provider is enrolled to bill Medicare. Enrolment does not guarantee they are accepting new Medicare patients — verify directly with the office.
Is NPI 1578976270 a valid number?
Yes. 1578976270 passes the Luhn check digit validation that CMS uses for NPI numbers, and it resolves to an active record in the registry.
How to use this page. Everything here comes from public federal records. Tips Health does not verify quality of care, confirm that a licence is currently active, or check malpractice history, and accepts no fees for placement. A listing is not a recommendation. Verify independently before seeking care.