Individual provider

Antoinette Khowong, MEDICAL DOCTOR

Obstetrics Physician Obstetrics & Gynecology Physician Medicare enrolled

Antoinette Khowong, MEDICAL DOCTOR is an Obstetrics Physician in Roseville, CA, registered under NPI 1033274238. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty.

Getting there

The practice address on file is 5 MEDICAL PLAZA DR SUITE 250, Roseville, CA 95661. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.

5 MEDICAL PLAZA DR SUITE 250, Roseville, CA 95661 Open in Google Maps →

Credentials and Medicare

State licence
LicenceStateSpecialty
A105245 CA Obstetrics Physician primary
6252 KS Obstetrics & Gynecology Physician

Licences are recorded in 2 states: CA, KS. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.

Medicare (PECOS)
Status
Approved
Provider type
Practitioner - Obstetrics/gynecology
PAC ID
6103986534
Enrollment ID
I20081114000703

Medicare enrolment is recorded as approved under the provider type Practitioner - Obstetrics/gynecology. 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 2 states

This provider holds licences in 2 states: California and Kansas. The practice address on file is in Roseville, 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.

CA California practice address
Licence
A105245
Specialty
Obstetrics Physician
Verify with the CA board →
KS Kansas
Licence
6252
Specialty
Obstetrics & Gynecology Physician
Verify with the KS 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 Obstetrics covers

A physician who specializes in diagnosis, treatment, and management of patients with obstetric conditions. NUCC Health Care Provider Taxonomy, code 207VX0000X
Allopathic & Osteopathic Physicians Obstetrics & Gynecology Obstetrics

All registered taxonomy codes

This provider registers 2 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.

CodeSpecialtyLicenceState
207VX0000X Obstetrics Physician Obstetrics A105245 CA primary
207V00000X Obstetrics & Gynecology Physician 6252 KS

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.

NPI1033274238 valid check digit
Entity typeIndividual (NPI-1)
Enumeration dateDec 27, 2006
Last updatedDec 16, 2021
StatusActive
Sole proprietorNo
CredentialMEDICAL DOCTOR
Practice address 5 MEDICAL PLAZA DR
SUITE 250
Roseville, CA 95661
(916) 782-2229
Fax (916) 797-9414
The last update on file is Dec 16, 2021. 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

1033274238 passes the NPI check digit test The final digit 8 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 0 3 3 2 7 4 2 3
Doubled? ×2 ×2 ×2 ×2 ×2 ×2 ×2
Value 8 0 8 8 0 2 0 6 3 4 7 8 2 6

Sum = 62 · next multiple of 10 = 70 · check digit = 8 · actual last digit = 8

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 1033274238?
NPI 1033274238 is the National Provider Identifier assigned to Antoinette Khowong, MEDICAL DOCTOR in Roseville, 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 Obstetrics cover?
A physician who specializes in diagnosis, treatment, and management of patients with obstetric conditions.
How do I contact Antoinette Khowong, MEDICAL DOCTOR?
The phone number on file with NPPES is (916) 782-2229, last updated Dec 16, 2021. 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 Antoinette Khowong, MEDICAL DOCTOR 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 1033274238 a valid number?
Yes. 1033274238 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.