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ANTOINETTE T KHOWONG MEDICAL DOCTOR
NPI 1033274238
Obstetrics & Gynecology - Obstetrics in Roseville, CA

Active since December 27, 2006PECOS EnrolledAccepts Medicare Assignment
5 MEDICAL PLAZA DR, SUITE 250, ROSEVILLE, CA 95661(916) 782-2229(916) 797-9414 Get Directions Write a Review

NPPES record last updated: December 16, 2021. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Antoinette T Khowong Medical Doctor NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ANTOINETTE T KHOWONG MEDICAL DOCTOR (NPI 1033274238) is an individual obstetrics provider in Roseville, California, licensed in California (A105245) and active in the NPI registry since December 2006. She is enrolled in Medicare PECOS and is a graduate of University Of Colorado School Of Medicine, Denver (2003).

NPPES Registry Identity

NPI1033274238
Entity TypeIndividualFemale
Primary Taxonomy207VX0000X
Provider Legal NameANTOINETTE T KHOWONGCredential: MEDICAL DOCTOR
Location Address5 MEDICAL PLAZA DR, SUITE 250Roseville, CA 95661-2865
Mailing Address5 Medical Plaza Dr, Suite 250Roseville, CA 95661-2865 · (916) 782-2229 · Fax (916) 797-9414
Phone(916) 782-2229
Fax(916) 797-9414
Sole ProprietorNo
Medical School CMSUniversity Of Colorado School Of Medicine, DenverGraduated 2003
Enumeration DateDecember 27, 2006
Last NPPES UpdateDecember 16, 2021
✔ NPI 1033274238 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyObstetrics & Gynecology · ObstetricsAllopathic & Osteopathic Physicians
Taxonomy Code207VX0000X
License✔ Licensed in CA · A105245
Definition

A physician who specializes in diagnosis, treatment, and management of patients with obstetric conditions. Source: National Uniform Claim Committee

Also ListedObstetrics & GynecologyTaxonomy 207V00000X · License 6252 (KS)
5 MEDICAL PLAZA DR, Roseville, CA 95661
Open in Google Maps ↗

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Antoinette T Khowong Medical Doctor is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6103986534
PECOS Enrollment IDI20081114000703
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95661 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$137.20 typical visit price
range $60.44 – $180.85
Typical copayment $34.30 (range $15.11 – $45.21)
Most-billed visit code 99204
Established Patient
$75.03 typical visit price
range $19.88 – $148.15
Typical copayment $18.75 (range $4.97 – $37.03)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MARSHA J MONTBRIAND NURSE PRACTITIONER
Nurse Practitioner (Obstetrics & Gynecology)
5 MEDICAL PLAZA DR, SUITE 250
ROSEVILLE, CA 95661
Placer County (916) 782-2229
CATHERINE E TAYLOR NURSE PRACTITIONER
Nurse Practitioner (Obstetrics & Gynecology)
5 MEDICAL PLAZA DR, SUITE 250
ROSEVILLE, CA 95661
Placer County (916) 782-2229
VITREO-RETINAL MEDICAL GROUP, INC
Ophthalmology
5 MEDICAL PLAZA DR, SUITE 180
ROSEVILLE, CA 95661
Placer County (916) 454-4861
BRENT EDWARD VANHOOZEN M.D.
Internal Medicine (Pulmonary Disease)
5 MEDICAL PLAZA DR, SUITE 190
ROSEVILLE, CA 95661
Placer County (916) 786-7498
RHONDA LYNN LEE FNP
Nurse Practitioner (Family)
5 MEDICAL PLAZA DR, #210
ROSEVILLE, CA 95661
Placer County (916) 780-5477
LORNA ADOLFO, A PROFESSIONAL MEDICAL CORPORATION
Internal Medicine
5 MEDICAL PLAZA DR, STE# 110
ROSEVILLE, CA 95661
Placer County (916) 784-8070
W RANDY MARTIN M.D.
Internal Medicine (Pulmonary Disease)
5 MEDICAL PLAZA DR, SUITE 190
ROSEVILLE, CA 95661
Placer County (916) 786-7498
DR. MARK DRAKE D.P.M.
Podiatrist (Foot & Ankle Surgery)
5 MEDICAL PLAZA DR, 110
ROSEVILLE, CA 95661
Placer County (916) 782-3444

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Antoinette Khowong's NPI number?

The NPI number for Antoinette Khowong is 1033274238. It was assigned to this individual provider in the NPPES registry on December 27, 2006.

Where is Antoinette Khowong located?

Antoinette Khowong practices at 5 Medical Plaza Dr Suite 250, Roseville, CA 95661. The listed phone number is (916) 782-2229.

What is Antoinette Khowong's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Obstetrics, with taxonomy code 207VX0000X.

Is Antoinette Khowong enrolled in Medicare?

Yes. Antoinette Khowong is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Antoinette Khowong was last updated on December 16, 2021. NPI Profile syncs with the weekly NPPES data releases published by CMS.