Katharine Chiu, M.D.
NPI 1518163088 · Internal Medicine Physician · San Diego, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katharine Chiu, M.D. is a Internal Medicine Physician provider in San Diego, CA (NPI 1518163088).
Provider details
- NPI number
- 1518163088
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A94537 (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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 111 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 602 | 229 |
| Losartan Potassium | 394 | 141 |
| Amlodipine Besylate | 295 | 118 |
| Levothyroxine Sodium | 277 | 100 |
| Omeprazole | 244 | 98 |
| Lisinopril | 237 | 85 |
| Rosuvastatin Calcium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-06-22
- Last updated
- 2021-12-01
Frequently asked questions
- What is Katharine Chiu's NPI number?
- Katharine Chiu's National Provider Identifier (NPI) is 1518163088, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katharine Chiu's specialty?
- Katharine Chiu is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Katharine Chiu located?
- Katharine Chiu's practice location on file with NPPES is 200 W Arbor Dr, San Diego, CA 92103-9000.
- What is Katharine Chiu's phone number?
- The practice phone number listed in the NPPES registry for Katharine Chiu is (619) 543-6440.
- Does Katharine Chiu accept Medicare?
- Katharine Chiu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katharine Chiu's NPI active?
- Yes — Katharine Chiu's NPI (1518163088) is active in the NPPES registry as of the last update on 2021-12-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.