Angela Tan, MD
NPI 1437358173 · Geriatric Medicine (Internal Medicine) Physician · Orange, CA
Angela Tan, MD is a Geriatric Medicine (Internal Medicine) Physician provider in Orange, CA (NPI 1437358173).
Provider details
- NPI number
- 1437358173
- Entity type
- Individual
- Primary specialty
- Geriatric Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- A94581 (CA)
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
18 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.
$196 across 4 records (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
- 2007-07-13
- Last updated
- 2007-07-13
Frequently asked questions
- What is Angela Tan's NPI number?
- Angela Tan's National Provider Identifier (NPI) is 1437358173, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Angela Tan's specialty?
- Angela Tan is listed in the NPPES registry with a primary specialty of Geriatric Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Angela Tan located?
- Angela Tan's practice location on file with NPPES is 101 the City Dr S, Orange, CA 92868-3201.
- What is Angela Tan's phone number?
- The practice phone number listed in the NPPES registry for Angela Tan is (714) 456-6770.
- Is Angela Tan's NPI active?
- Yes — Angela Tan's NPI (1437358173) is active in the NPPES registry as of the last update on 2007-07-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.