Chrystal Wa, M.D.
NPI 1407174410 · Student in an Organized Health Care Education/Training Program · San Francisco, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Chrystal Wa, M.D. is a Student in an Organized Health Care Education/Training Program provider in San Francisco, CA (NPI 1407174410).
Provider details
- NPI number
- 1407174410
- Entity type
- Individual
- Primary specialty
- Student in an Organized Health Care Education/Training ProgramStudent, Health Care
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
16 yrs in NPPES registry
- Profile completeness38% of score
83% 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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 16 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 128 | 39 |
| Alendronate Sodium | 117 | 62 |
| Methimazole | 96 | 31 |
| Hydrocortisone | 49 | 14 |
| Teriparatidebrand: Forteo | 29 | — |
| Metformin Hclbrand: Metformin Hcl Er | 26 | — |
| Empagliflozinbrand: Jardiance | 23 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-05-14
- Last updated
- 2022-02-11
Frequently asked questions
- What is Chrystal Wa's NPI number?
- Chrystal Wa's National Provider Identifier (NPI) is 1407174410, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Chrystal Wa's specialty?
- Chrystal Wa is listed in the NPPES registry with a primary specialty of Student in an Organized Health Care Education/Training Program (Student, Health Care).
- Where is Chrystal Wa located?
- Chrystal Wa's practice location on file with NPPES is 2351 Clay St, San Francisco, CA 94115-1931.
- What is Chrystal Wa's phone number?
- The practice phone number listed in the NPPES registry for Chrystal Wa is (415) 600-3954.
- Does Chrystal Wa accept Medicare?
- Chrystal Wa is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Chrystal Wa's NPI active?
- Yes — Chrystal Wa's NPI (1407174410) is active in the NPPES registry as of the last update on 2022-02-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.