Tammy Liang, RN
NPI 1922788652 · Critical Care Medicine Registered Nurse · Oakland, CA
Tammy Liang, RN is a Critical Care Medicine Registered Nurse provider in Oakland, CA (NPI 1922788652).
Provider details
- NPI number
- 1922788652
- Entity type
- Individual
- Primary specialty
- Critical Care Medicine Registered NurseNursing Service Providers
- Credential
- RN
- Sex
- Female
- Sole proprietor
- Yes
- License
- 95202245 (CA)
Specialties & taxonomies
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
2 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
- 2023-07-18
- Last updated
- 2023-07-18
- Certified
- 2023-07-17
Frequently asked questions
- What is Tammy Liang's NPI number?
- Tammy Liang's National Provider Identifier (NPI) is 1922788652, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tammy Liang's specialty?
- Tammy Liang is listed in the NPPES registry with a primary specialty of Critical Care Medicine Registered Nurse (Nursing Service Providers).
- Where is Tammy Liang located?
- Tammy Liang's practice location on file with NPPES is 3100 Telegraph Ave Ste 350, Oakland, CA 94609-3239.
- What is Tammy Liang's phone number?
- The practice phone number listed in the NPPES registry for Tammy Liang is (626) 551-7971.
- Is Tammy Liang's NPI active?
- Yes — Tammy Liang's NPI (1922788652) is active in the NPPES registry as of the last update on 2023-07-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.