What is Trung Dao's NPI number?

Trung Dao's National Provider Identifier (NPI) is 1821104423, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Trung Dao's specialty?

Trung Dao is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).

Where is Trung Dao located?

Trung Dao's practice location on file with NPPES is 9211 Bolsa Ave, Westminster, CA 92683-5567.

What is Trung Dao's phone number?

The practice phone number listed in the NPPES registry for Trung Dao is (714) 898-7886.

Does Trung Dao accept Medicare?

Trung Dao is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Trung Dao's NPI active?

Yes — Trung Dao's NPI (1821104423) is active in the NPPES registry as of the last update on 2025-11-19.

IndividualActiveAccepts Medicare

Trung Dao, M.D.

NPI 1821104423 · Specialist · Westminster, CA

Trung Dao, M.D. is a Specialist provider in Westminster, CA (NPI 1821104423).

Provider details

NPI number: 1821104423
Entity type: Individual
Primary specialty: SpecialistOther Service Providers
Credential: M.D.
Sex: Male
Sole proprietor: Yes
License: A42590 (CA)

Practice location

9211 Bolsa Ave

Suite 217

Westminster, CA 92683-5567

Phone: (714) 898-7886

Fax: (714) 898-8226

Street-level locationGet directions

More CA providers

Mailing address

10551 Crawford Canyon Rd

Santa Ana, CA 92705-1416

Specialties & taxonomies

SpecialistPrimary174400000XLicense A42590 (CA)
Other Service Providers

Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Profile Score

Established profile(70/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure25% of score
20 yrs in NPPES registry
Profile completeness25% of score
100% of core fields populated
Practice footprint15% of score
1 documented practice location
Medicare service volume (vs. specialty peers)25% of score
237 Medicare services, 2024 (ranked within specialty)
Open Payments transparency10% of score
Has Open Payments disclosures (2024)

Medicare volume is ranked against active providers in the same specialty. 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 does (Medicare)

Based on Medicare fee-for-service claims, 2024; not all care is captured.

Service (HCPCS)	Medicare services	Typical Medicare-allowed (2024)
Therapy Procedure Using Manual Technique, Each 15 Minutes97140	128	$25
Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213	59	$99
Electrical Stimulation (unattended), to One Or More Areas for Indication(s) Other Than Wound Care, As Part of a Therapy Plan of CareG0283	50	$9

Typical Medicare-allowed amounts for these services range $9–$99 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 32 distinct drugs on file.

Drug	Part D claims (2024)	Beneficiaries
Atorvastatin Calcium	143	40
Amlodipine Besylate	109	30
Omeprazole	52	12
Losartan Potassium	46	14
Fluticasone Propionate	40	—
Gabapentin	38	15
Metformin Hcl	37

Transparency — industry payments

Based on CMS Open Payments, 2024; not all care is captured.

$125 across 1 record (Open Payments 2024)

Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.

Enumerated: 2006-08-23
Last updated: 2025-11-19
Certified: 2025-11-19

Frequently asked questions

What is Trung Dao's NPI number?: Trung Dao's National Provider Identifier (NPI) is 1821104423, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Trung Dao's specialty?: Trung Dao is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).
Where is Trung Dao located?: Trung Dao's practice location on file with NPPES is 9211 Bolsa Ave, Westminster, CA 92683-5567.
What is Trung Dao's phone number?: The practice phone number listed in the NPPES registry for Trung Dao is (714) 898-7886.
Does Trung Dao accept Medicare?: Trung Dao is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Trung Dao's NPI active?: Yes — Trung Dao's NPI (1821104423) is active in the NPPES registry as of the last update on 2025-11-19.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

What this provider does (Medicare)

Based on Medicare fee-for-service claims, 2024; not all care is captured.

Service (HCPCS)	Medicare services	Typical Medicare-allowed (2024)
Therapy Procedure Using Manual Technique, Each 15 Minutes97140	128	$25
Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213	59	$99
Electrical Stimulation (unattended), to One Or More Areas for Indication(s) Other Than Wound Care, As Part of a Therapy Plan of CareG0283	50	$9