Matthew Hsieh, MD
NPI 1992915458 · Hematology & Oncology Physician · Bethesda, MD
Enrolled with Medicare as Order and Referring Only - Hematology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Matthew Hsieh, MD is a Hematology & Oncology Physician provider in Bethesda, MD (NPI 1992915458).
Provider details
- NPI number
- 1992915458
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- D57106 (MD)
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
- 2007-05-23
- Last updated
- 2016-08-04
Frequently asked questions
- What is Matthew Hsieh's NPI number?
- Matthew Hsieh's National Provider Identifier (NPI) is 1992915458, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Matthew Hsieh's specialty?
- Matthew Hsieh is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Matthew Hsieh located?
- Matthew Hsieh's practice location on file with NPPES is 9000 Rockville Pike, Bethesda, MD 20892-0001.
- What is Matthew Hsieh's phone number?
- The practice phone number listed in the NPPES registry for Matthew Hsieh is (301) 402-7687.
- Does Matthew Hsieh accept Medicare?
- Matthew Hsieh is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Matthew Hsieh's NPI active?
- Yes — Matthew Hsieh's NPI (1992915458) is active in the NPPES registry as of the last update on 2016-08-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.