1. Home
  2. Directory
  3. California
  4. Fremont
  5. Internal Medicine
  6. NPI Profile

MAI DAO MD
NPI 1912561465
Internal Medicine - Gastroenterology in Fremont, CA

Active since April 30, 2019PECOS EnrolledAccepts Medicare Assignment
3200 KEARNEY ST, FREMONT, CA 94538(510) 498-2395 Get Directions Write a Review

NPPES record last updated: February 17, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Mai Dao Md NPPES

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

MAI DAO MD (NPI 1912561465) is an individual gastroenterology provider in Fremont, California, licensed in California (A179453) and active in the NPI registry since April 2019. She is enrolled in Medicare PECOS and is a graduate of Other (2019).

NPPES Registry Identity

NPI1912561465
Entity TypeIndividualFemale
Primary Taxonomy207RG0100X
Provider Legal NameMAI DAOCredential: MD
Location Address3200 KEARNEY STFremont, CA 94538-2299
Mailing Address3200 Kearney StFremont, CA 94538-2299
Phone(510) 498-2395
Sole ProprietorNo
Medical School CMSOtherGraduated 2019
Enumeration DateApril 30, 2019
Last NPPES UpdateFebruary 17, 2026
NPPES CertifiedFebruary 17, 2026
✔ NPI 1912561465 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in CA · A179453
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
3200 KEARNEY ST, Fremont, CA 94538
Open in Google Maps ↗

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

Mai Dao Md 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 ID6002296100
PECOS Enrollment IDI20260211002960
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 Mai Dao reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Sutter Bay Medical Foundation
0.1 mi
Ambulatory Surgical
3140 KEARNEY ST
Fremont, CA 94538
NPI 1497996524 (510) 498-2819

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94538 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
$153.83 typical visit price
range $69.00 – $202.35
Typical copayment $38.45 (range $17.25 – $50.58)
Most-billed visit code 99204
Established Patient
$119.48 typical visit price
range $23.44 – $166.46
Typical copayment $29.87 (range $5.86 – $41.61)
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 20

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

DR. LAKSHMI SRINIVASAN MD
Internal Medicine (Endocrinology, Diabetes & Metabolism)
3200 KEARNEY ST
FREMONT, CA 94538
Alameda County (510) 490-1222
THOMAS KIM
Orthopaedic Surgery (Hand Surgery)
3200 KEARNEY ST
FREMONT, CA 94538
Alameda County (510) 490-1222
DR. DANIEL KRASS AU.D.
Audiologist-Hearing Aid Fitter
3200 KEARNEY ST
FREMONT, CA 94538
Alameda County (510) 498-2681
STEPHANIE CHIANG MD
Pediatrics
3200 KEARNEY ST
FREMONT, CA 94538
Alameda County (510) 490-1222
STEVEN BARTIS DPM
Podiatrist
3200 KEARNEY ST
FREMONT, CA 94538
Alameda County (510) 490-1222
NANCY WANG MD
Otolaryngology (Plastic Surgery within the Head & Neck)
3200 KEARNEY ST
FREMONT, CA 94538
Alameda County (510) 490-1222
ZAHRA PIRANI
Emergency Medicine (Pediatric Emergency Medicine)
3200 KEARNEY ST
FREMONT, CA 94538
Alameda County (510) 490-1222
NATASHA BEILIN MD
Pediatrics
3200 KEARNEY ST
FREMONT, CA 94538
Alameda County (510) 490-1222

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 Mai Dao's NPI number?

The NPI number for Mai Dao is 1912561465. It was assigned to this individual provider in the NPPES registry on April 30, 2019.

Where is Mai Dao located?

Mai Dao practices at 3200 Kearney St, Fremont, CA 94538. The listed phone number is (510) 498-2395.

What is Mai Dao's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Mai Dao enrolled in Medicare?

Yes. Mai Dao 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 Mai Dao's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mai Dao reassigns Medicare benefits to Sutter Bay Medical Foundation (Fremont, 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 Mai Dao'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 Mai Dao was last updated on February 17, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 months 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.