Maria Cristina Hsu, MD
NPI 1497803472 · Internal Medicine Physician · Anaheim, CA
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Maria Cristina Hsu, MD is a Internal Medicine Physician provider in Anaheim, CA (NPI 1497803472).
Provider details
- NPI number
- 1497803472
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A74231 (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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-01-08
- Last updated
- 2021-12-14
- Certified
- 2021-12-14
Frequently asked questions
- What is Maria Cristina Hsu's NPI number?
- Maria Cristina Hsu's National Provider Identifier (NPI) is 1497803472, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maria Cristina Hsu's specialty?
- Maria Cristina Hsu is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Maria Cristina Hsu located?
- Maria Cristina Hsu's practice location on file with NPPES is 441 N Lakeview Ave, Anaheim, CA 92807-3028.
- What is Maria Cristina Hsu's phone number?
- The practice phone number listed in the NPPES registry for Maria Cristina Hsu is (888) 988-2800.
- Does Maria Cristina Hsu accept Medicare?
- Maria Cristina Hsu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Maria Cristina Hsu's NPI active?
- Yes — Maria Cristina Hsu's NPI (1497803472) is active in the NPPES registry as of the last update on 2021-12-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.