Willie Teo Ong, MD PA
NPI 1043405426 · Endocrinology, Diabetes & Metabolism Physician · Brownsville, TX
Willie Teo Ong, MD PA is a Endocrinology, Diabetes & Metabolism Physician organization in Brownsville, TX (NPI 1043405426).
Provider details
- NPI number
- 1043405426
- Entity type
- Organization
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Esmeralda Sierra, Medical Biller/Credenitaling(956) 548-0077
- License
- K1094 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-09-10
- Last updated
- 2008-02-19
Frequently asked questions
- What is Willie Teo Ong, MD PA's NPI number?
- Willie Teo Ong, MD PA's National Provider Identifier (NPI) is 1043405426, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Willie Teo Ong, MD PA?
- Willie Teo Ong, MD PA is classified in the NPPES registry as Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Willie Teo Ong, MD PA located?
- Willie Teo Ong, MD PA's practice location on file with NPPES is 844 Central Blvd Ste 370, Brownsville, TX 78520-7512.
- What is Willie Teo Ong, MD PA's phone number?
- The practice phone number listed in the NPPES registry for Willie Teo Ong, MD PA is (956) 548-0077.
- Who is the authorized official for Willie Teo Ong, MD PA?
- The authorized official listed on Willie Teo Ong, MD PA's NPPES record is Esmeralda Sierra, Medical Biller/Credenitaling. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Willie Teo Ong, MD PA's NPI active?
- Yes — Willie Teo Ong, MD PA's NPI (1043405426) is active in the NPPES registry as of the last update on 2008-02-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.