Teh Liang, M.D.
NPI 1255340535 · Internal Medicine Physician · La Mesa, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Teh Liang, M.D. is a Internal Medicine Physician provider in La Mesa, CA (NPI 1255340535).
Provider details
- NPI number
- 1255340535
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A61596 (CA)
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
19 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
- 2006-08-05
- Last updated
- 2013-06-24
Frequently asked questions
- What is Teh Liang's NPI number?
- Teh Liang's National Provider Identifier (NPI) is 1255340535, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Teh Liang's specialty?
- Teh Liang is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Teh Liang located?
- Teh Liang's practice location on file with NPPES is 5525 Grossmont Center Dr, La Mesa, CA 91942-3009.
- What is Teh Liang's phone number?
- The practice phone number listed in the NPPES registry for Teh Liang is (858) 499-2600.
- Does Teh Liang accept Medicare?
- Teh Liang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Teh Liang's NPI active?
- Yes — Teh Liang's NPI (1255340535) is active in the NPPES registry as of the last update on 2013-06-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.