Mary Chen, MD
NPI 1922645621 · Pediatrics Physician · Harrisburg, PA
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Chen, MD is a Pediatrics Physician provider in Harrisburg, PA (NPI 1922645621).
Provider details
- NPI number
- 1922645621
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 2022024119 (MO)
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 tenure38% of score
6 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
- 2019-12-02
- Last updated
- 2025-07-25
- Certified
- 2025-07-25
Frequently asked questions
- What is Mary Chen's NPI number?
- Mary Chen's National Provider Identifier (NPI) is 1922645621, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Chen's specialty?
- Mary Chen is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Mary Chen located?
- Mary Chen's practice location on file with NPPES is 121 N Nyes Rd, Harrisburg, PA 17112-3247.
- What is Mary Chen's phone number?
- The practice phone number listed in the NPPES registry for Mary Chen is (717) 531-8674.
- Does Mary Chen accept Medicare?
- Mary Chen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Chen's NPI active?
- Yes — Mary Chen's NPI (1922645621) is active in the NPPES registry as of the last update on 2025-07-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.