Individual provider

Kuo Ooi, M.D.

Internal Medicine Physician Sports Medicine (Internal Medicine) Physician Pediatrics Physician Medicare enrolled

Kuo Ooi, M.D. is an Internal Medicine Physician in Rocklin, CA, registered under NPI 1598775421. This provider registers 5 separate taxonomy codes, which usually means they practise across more than one recognised specialty. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.

Getting there

The practice address on file is 3104 SUNSET BLVD STE 2B, Rocklin, CA 95677. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.

3104 SUNSET BLVD STE 2B, Rocklin, CA 95677 Open in Google Maps →

Credentials and Medicare

State licence
LicenceStateSpecialty
A96680 CA Internal Medicine Physician primary
A96680 CA Sports Medicine (Internal Medicine)…
A96680 CA Pediatrics Physician
A96680 CA Acupuncturist
A96680 CA Pediatric Sports Medicine Physician

This provider holds licence A96680 issued in CA. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.

Medicare (PECOS)
Status
Approved
Provider type
Practitioner - Internal Medicine
PAC ID
3779687702
Enrollment ID
I20070402000317

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.

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 5 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.

CodeSpecialtyLicenceState
207R00000X Internal Medicine Physician A96680 CA primary
207RS0010X Sports Medicine (Internal Medicine) Physician Sports Medicine A96680 CA
208000000X Pediatrics Physician A96680 CA
171100000X Acupuncturist A96680 CA
2080S0010X Pediatric Sports Medicine Physician Sports Medicine A96680 CA

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.

NPI1598775421 valid check digit
Entity typeIndividual (NPI-1)
Enumeration dateAug 9, 2006
Last updatedMar 7, 2023
StatusActive
Sole proprietorYes
CredentialM.D.
Practice address 3104 SUNSET BLVD STE 2B
Rocklin, CA 95677
(916) 624-0300
Fax (916) 624-0631
The last update on file is Mar 7, 2023. Providers are only required to update NPPES when their information changes, so an older date does not necessarily mean the details are wrong — but it is worth a quick call before you travel.

Number check

1598775421 passes the NPI check digit test The final digit 1 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 9 8 7 7 5 4 2
Doubled? ×2 ×2 ×2 ×2 ×2 ×2 ×2
Value 8 0 8 8 0 2 5 9 8 5 7 1 4 4

Sum = 69 · next multiple of 10 = 70 · check digit = 1 · actual last digit = 1

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 1598775421?
NPI 1598775421 is the National Provider Identifier assigned to Kuo Ooi, M.D. in Rocklin, 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 Kuo Ooi, M.D.?
The phone number on file with NPPES is (916) 624-0300, last updated Mar 7, 2023. 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 Kuo Ooi, 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 1598775421 a valid number?
Yes. 1598775421 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.