Dorothy Hsiao, MD
NPI 1104800309 · Neonatal-Perinatal Medicine Physician · Rockville, MD
Enrolled with Medicare as Order and Referring Only - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Dorothy Hsiao, MD is a Neonatal-Perinatal Medicine Physician provider in Rockville, MD (NPI 1104800309).
Provider details
- NPI number
- 1104800309
- Entity type
- Individual
- Primary specialty
- Neonatal-Perinatal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- D0023109 (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
20 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
- 2005-12-01
- Last updated
- 2008-03-19
Frequently asked questions
- What is Dorothy Hsiao's NPI number?
- Dorothy Hsiao's National Provider Identifier (NPI) is 1104800309, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Dorothy Hsiao's specialty?
- Dorothy Hsiao is listed in the NPPES registry with a primary specialty of Neonatal-Perinatal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Dorothy Hsiao located?
- Dorothy Hsiao's practice location on file with NPPES is 9901 Medical Center Dr, Rockville, MD 20850-3357.
- What is Dorothy Hsiao's phone number?
- The practice phone number listed in the NPPES registry for Dorothy Hsiao is (301) 279-6392.
- Does Dorothy Hsiao accept Medicare?
- Dorothy Hsiao is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Dorothy Hsiao's NPI active?
- Yes — Dorothy Hsiao's NPI (1104800309) is active in the NPPES registry as of the last update on 2008-03-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.