Audrey Chai, MD
NPI 1649807835 · Internal Medicine Physician · Los Angeles, CA
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Audrey Chai, MD is a Internal Medicine Physician provider in Los Angeles, CA (NPI 1649807835).
Provider details
- NPI number
- 1649807835
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 186492 (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
6 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 1 distinct drug on file.
| Drug | Part D claims (2024) |
|---|---|
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 16 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (1)
- 500 Pasteur DrPalo Alto, CA 94304-1048Phone: (650) 723-4000
Registry dates
- Enumerated
- 2020-03-26
- Last updated
- 2026-01-11
- Certified
- 2026-01-11
Frequently asked questions
- What is Audrey Chai's NPI number?
- Audrey Chai's National Provider Identifier (NPI) is 1649807835, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Audrey Chai's specialty?
- Audrey Chai is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Audrey Chai located?
- Audrey Chai's practice location on file with NPPES is 1200 N State Street Clinic Tower, Los Angeles, CA 90033-1029.
- What is Audrey Chai's phone number?
- The practice phone number listed in the NPPES registry for Audrey Chai is (323) 409-7556.
- Does Audrey Chai accept Medicare?
- Audrey Chai is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Audrey Chai's NPI active?
- Yes — Audrey Chai's NPI (1649807835) is active in the NPPES registry as of the last update on 2026-01-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.