Thao Doan, MD
NPI 1649749813 · Allergy & Immunology Physician · Libertyville, IL
Thao Doan, MD is a Allergy & Immunology Physician provider in Libertyville, IL (NPI 1649749813).
Provider details
- NPI number
- 1649749813
- Entity type
- Individual
- Primary specialty
- Allergy & Immunology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 036.079568 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
7 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$91 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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-11-17
- Last updated
- 2018-11-17
Frequently asked questions
- What is Thao Doan's NPI number?
- Thao Doan's National Provider Identifier (NPI) is 1649749813, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thao Doan's specialty?
- Thao Doan is listed in the NPPES registry with a primary specialty of Allergy & Immunology Physician (Allopathic & Osteopathic Physicians).
- Where is Thao Doan located?
- Thao Doan's practice location on file with NPPES is 523 Sandy Ln, Libertyville, IL 60048-3553.
- What is Thao Doan's phone number?
- The practice phone number listed in the NPPES registry for Thao Doan is (847) 816-7245.
- Is Thao Doan's NPI active?
- Yes — Thao Doan's NPI (1649749813) is active in the NPPES registry as of the last update on 2018-11-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.