Antoinette Khowong, MEDICAL DOCTOR
NPI 1033274238 · Obstetrics Physician · Roseville, CA
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Antoinette Khowong, MEDICAL DOCTOR is a Obstetrics Physician provider in Roseville, CA (NPI 1033274238).
Provider details
- NPI number
- 1033274238
- Entity type
- Individual
- Primary specialty
- Obstetrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- MEDICAL DOCTOR
- Sex
- Female
- Sole proprietor
- No
- License
- 6252 (KS)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Estradiol | 77 | 52 |
| Estradiolbrand: Yuvafem | 25 | 17 |
| Clobetasol Propionate | 19 | 18 |
| Estradiolbrand: Estring | 15 | — |
| Fluconazole | 13 | 12 |
| Trospium Chloride | 12 | — |
| Acyclovir | 12 | — |
| Medroxyprogesterone Acetate | 11 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-12-27
- Last updated
- 2021-12-16
Frequently asked questions
- What is Antoinette Khowong's NPI number?
- Antoinette Khowong's National Provider Identifier (NPI) is 1033274238, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Antoinette Khowong's specialty?
- Antoinette Khowong is listed in the NPPES registry with a primary specialty of Obstetrics Physician (Allopathic & Osteopathic Physicians).
- Where is Antoinette Khowong located?
- Antoinette Khowong's practice location on file with NPPES is 5 Medical Plaza Dr, Roseville, CA 95661-2865.
- What is Antoinette Khowong's phone number?
- The practice phone number listed in the NPPES registry for Antoinette Khowong is (916) 782-2229.
- Does Antoinette Khowong accept Medicare?
- Antoinette Khowong is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Antoinette Khowong's NPI active?
- Yes — Antoinette Khowong's NPI (1033274238) is active in the NPPES registry as of the last update on 2021-12-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.