1. Home
  2. Directory
  3. California
  4. Elk Grove
  5. Internal Medicine
  6. NPI Profile
Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

ANTOINETTE IJEOMA GNONA MD
NPI 1891438966
Internal Medicine in Elk Grove, CA

Active since April 18, 2022PECOS Enrolled
8210 LAGUNA BLVD, ELK GROVE, CA 95758(916) 454-6850(916) 454-6852 Get Directions Write a Review

NPPES record last updated: October 1, 2026. Verified against the NPPES registry weekly; last sync: October 11, 2026.

Record update history: Oct 1, 2026, Jul 24, 2026, Apr 18, 2022 (3 updates tracked since 2022).

About Antoinette Ijeoma Gnona Md NPPES

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

ANTOINETTE IJEOMA GNONA MD (NPI 1891438966) is an individual internal medicine provider in Elk Grove, California, licensed in California (A188935) and active in the NPI registry since April 2022. She is enrolled in Medicare PECOS and maintains a secondary practice location in Sacramento.

NPPES Registry Identity

NPI1891438966
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameANTOINETTE IJEOMA GNONACredential: MD
Location Address8210 LAGUNA BLVDElk Grove, CA 95758
Mailing AddressPo Box 255228Sacramento, CA 95865-5228 · (800) 470-0071 · Fax (916) 854-6769
Phone(916) 454-6850
Fax(916) 454-6852
Sole ProprietorNo
Enumeration DateApril 18, 2022
Last NPPES UpdateOctober 1, 20263 updates tracked since enumeration
NPPES CertifiedSeptember 29, 2026
✔ NPI 1891438966 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · A188935
Definition
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.
8210 LAGUNA BLVD, Elk Grove, CA 95758
Open in Google Maps ↗

Other Names 1

Former Name (1)Antoinette Alugbue

Secondary Practice Location 1

Location 14150 V St, #1100Sacramento, CA 95817 · Phone (916) 734-2737

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Antoinette Ijeoma Gnona Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 95758 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
$105.95 typical visit price
range $19.88 – $148.15
Typical copayment $26.48 (range $4.97 – $37.03)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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 Gnona's NPI number?

The NPI number for Antoinette Gnona is 1891438966. It was assigned to this individual provider in the NPPES registry on April 18, 2022. The provider is also known as Antoinette Alugbue.

Where is Antoinette Gnona located?

Antoinette Gnona practices at 8210 Laguna Blvd, Elk Grove, CA 95758. The listed phone number is (916) 454-6850.

What is Antoinette Gnona's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Antoinette Gnona enrolled in Medicare?

Yes. Antoinette Gnona is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Antoinette Gnona was last updated on October 1, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.