Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. PETER KIN TUNG NGAI DMD
NPI 1083606388
Dentist - General Practice in Elk Grove, CA

Active since August 22, 2005Opted out of Medicare · through May 31, 2028
9727 ELK GROVE FLORIN RD, SUITE 200, ELK GROVE, CA 95624(916) 685-3777 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. Peter Kin Tung Ngai Dmd NPPES

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

DR. PETER KIN TUNG NGAI DMD (NPI 1083606388) is an individual general practice provider in Elk Grove, California, licensed in California (40690) and active in the NPI registry since August 2005. He has opted out of Medicare through May 31, 2028 and remains eligible to order and refer.

NPPES Registry Identity

NPI1083606388
Entity TypeIndividualMale
Primary Taxonomy1223G0001X
Provider Legal NameDR. PETER KIN TUNG NGAICredential: DMD
Location Address9727 ELK GROVE FLORIN RD, SUITE 200Elk Grove, CA 95624-2264
Mailing Address9727 Elk Grove Florin Rd, Suite 200Elk Grove, CA 95624-2264 · (916) 685-3777
Sole ProprietorNo
Enumeration DateAugust 22, 2005
Last NPPES UpdateJuly 13, 2026
NPI 1083606388 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyDentist · General PracticeDental Providers
Taxonomy Code1223G0001X
License Licensed in CA · 40690
Definition
A general dentist is the primary dental care provider for patients of all ages. The general dentist is responsible for the diagnosis, treatment, management and overall coordination of services related to patients' oral health needs.
9727 ELK GROVE FLORIN RD, Elk Grove, CA 95624

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

Opted out of Medicare

Dr. Peter Kin Tung Ngai Dmd has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from May 31, 2016 through May 31, 2028.

Opt-Out Effective DateMay 31, 2016
Opt-Out In Effect ThroughMay 31, 2028Opt-out affidavits renew automatically every two years unless cancelled
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95624 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
$92.61 typical visit price
range $60.44 – $180.85
Typical copayment $23.15 (range $15.11 – $45.21)
Most-billed visit code 99203
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 15

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

Massage Therapist
9727 ELK GROVE FLORIN RD, SUITE 290
ELK GROVE, CA 95624
Optometrist
9727 ELK GROVE FLORIN RD, #190
ELK GROVE, CA 95624
Dentist (General Practice)
9727 ELK GROVE FLORIN RD, SUITE 270
ELK GROVE, CA 95624
Allergy & Immunology
9727 ELK GROVE FLORIN RD, SUITE 180
ELK GROVE, CA 95624
Dentist (General Practice)
9727 ELK GROVE FLORIN RD, SUITE 200
ELK GROVE, CA 95624
Psychiatry & Neurology (Neurology)
9727 ELK GROVE FLORIN RD, SUITE 120
ELK GROVE, CA 95624
Family Medicine
9727 ELK GROVE FLORIN RD, SUITE 140
ELK GROVE, CA 95624
Dentist (Orthodontics and Dentofacial Orthopedics)
9727 ELK GROVE FLORIN RD
ELK GROVE, CA 95624

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 Peter Ngai's NPI number?

The NPI number for Peter Ngai is 1083606388. It was assigned to this individual provider in the NPPES registry on August 22, 2005.

Where is Peter Ngai located?

Peter Ngai practices at 9727 Elk Grove Florin Rd Suite 200, Elk Grove, CA 95624. The listed phone number is (916) 685-3777.

What is Peter Ngai's specialty?

The primary specialty registered for this NPI is Dentist, specializing in General Practice, with taxonomy code 1223G0001X.

Is Peter Ngai enrolled in Medicare?

No. Peter Ngai has opted out of Medicare through May 31, 2028. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

When was this NPI record last updated?

The NPPES record for Peter Ngai was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 37 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.