Charles Chiu, M.D., PH.D.
NPI 1598797268 · Infectious Disease Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Infectious Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Charles Chiu, M.D., PH.D. is a Infectious Disease Physician provider in San Francisco, CA (NPI 1598797268).
Provider details
- NPI number
- 1598797268
- Entity type
- Individual
- Primary specialty
- Infectious Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D., PH.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A81538 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 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.
$54 across 1 record (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
- 2006-07-06
- Last updated
- 2017-03-23
Frequently asked questions
- What is Charles Chiu's NPI number?
- Charles Chiu's National Provider Identifier (NPI) is 1598797268, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Charles Chiu's specialty?
- Charles Chiu is listed in the NPPES registry with a primary specialty of Infectious Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Charles Chiu located?
- Charles Chiu's practice location on file with NPPES is 185 Berry St Ste 180a, San Francisco, CA 94107-1739.
- What is Charles Chiu's phone number?
- The practice phone number listed in the NPPES registry for Charles Chiu is (415) 514-8219.
- Does Charles Chiu accept Medicare?
- Charles Chiu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Charles Chiu's NPI active?
- Yes — Charles Chiu's NPI (1598797268) is active in the NPPES registry as of the last update on 2017-03-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.