THAO LAI
NPI 1255793840
Nurse Practitioner - Family in Santa Ana, CA

Active since March 23, 2016PECOS EnrolledAccepts Medicare Assignment
720 N TUSTIN AVE, 201, SANTA ANA, CA 92705(714) 664-0045 Get Directions Write a Review

NPPES record last updated: March 23, 2016. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Thao Lai NPPES

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

THAO LAI (NPI 1255793840) is an individual family provider in Santa Ana, California, licensed in California (95004008) and active in the NPI registry since March 2016. She is enrolled in Medicare PECOS and is a graduate of Other (2015).

NPPES Registry Identity

NPI1255793840
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameTHAO LAI
Location Address720 N TUSTIN AVE, 201Santa Ana, CA 92705-3606
Mailing Address720 N Tustin Ave, 201Santa Ana, CA 92705-3606
Sole ProprietorYes
Medical School CMSOtherGraduated 2015
Enumeration DateMarch 23, 2016
✔ NPI 1255793840 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License✔ Licensed in CA · 95004008
Also ListedRegistered Nurse · Critical Care MedicineTaxonomy 163WC0200X · License 687071 (CA)
720 N TUSTIN AVE, Santa Ana, CA 92705

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Thao Lai 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 ID3678850575
PECOS Enrollment IDI20170502001767
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.

Medicare Billing Reassignment

Medicare enrollment records show Thao Lai reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Infectious Disease
999 N TUSTIN AVE STE 224
Santa Ana, CA 92705
  • Reassigned Medicare billing, California enrollment
  • 9 clinicians in this Medicare group

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
426 services138 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
256 services148 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
108 services36 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
41 services41 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92705 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
$96.36 typical visit price
range $62.96 – $187.60
Typical copayment $24.09 (range $15.74 – $46.90)
Most-billed visit code 99203
Established Patient
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
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.

Other Providers at the Same Location NPPES 17

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

Clinic/Center (Medical Specialty)
720 N TUSTIN AVE, SUITE #103
SANTA ANA, CA 92705
Emergency Medicine (Undersea and Hyperbaric Medicine)
720 N TUSTIN AVE, SUITE 100
SANTA ANA, CA 92705
Clinic/Center (Ambulatory Surgical)
720 N TUSTIN AVE, STE. 205
SANTA ANA, CA 92705
Clinic/Center (Physical Therapy)
720 N TUSTIN AVE, SUITE 206
SANTA ANA, CA 92705
Specialist
720 N TUSTIN AVE, STE. 206
SANTA ANA, CA 92705
Durable Medical Equipment & Medical Supplies
720 N TUSTIN AVE, STE. 206
SANTA ANA, CA 92705
Internal Medicine (Cardiovascular Disease)
720 N TUSTIN AVE, STE 201
SANTA ANA, CA 92705
Physician Assistant
720 N TUSTIN AVE, SUITE 100
SANTA ANA, CA 92705

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 Thao Lai's NPI number?

The NPI number for Thao Lai is 1255793840. It was assigned to this individual provider in the NPPES registry on March 23, 2016.

Where is Thao Lai located?

Thao Lai practices at 720 N Tustin Ave 201, Santa Ana, CA 92705. The listed phone number is (714) 664-0045.

What is Thao Lai's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Thao Lai enrolled in Medicare?

Yes. Thao Lai 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.

Which organization bills Medicare for Thao Lai's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Thao Lai reassigns Medicare benefits to Infectious Disease Associates Of Orange County, Inc. (Santa Ana, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Thao Lai's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Thao Lai was last updated on March 23, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 years 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.