Alissa Won, M.D.
NPI 1023000866 · Pediatrics Physician · Arnold, MD
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alissa Won, M.D. is a Pediatrics Physician provider in Arnold, MD (NPI 1023000866).
Provider details
- NPI number
- 1023000866
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- D0062438 (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
- 2005-08-18
- Last updated
- 2022-10-12
- Certified
- 2022-10-12
Frequently asked questions
- What is Alissa Won's NPI number?
- Alissa Won's National Provider Identifier (NPI) is 1023000866, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alissa Won's specialty?
- Alissa Won is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Alissa Won located?
- Alissa Won's practice location on file with NPPES is 1460 Ritchie Hwy Ste 209, Arnold, MD 21012-2741.
- What is Alissa Won's phone number?
- The practice phone number listed in the NPPES registry for Alissa Won is (410) 789-7337.
- Does Alissa Won accept Medicare?
- Alissa Won is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alissa Won's NPI active?
- Yes — Alissa Won's NPI (1023000866) is active in the NPPES registry as of the last update on 2022-10-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.