Sandy Johng
NPI 1821443516 · Neonatal-Perinatal Medicine Physician · Seattle, WA
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sandy Johng is a Neonatal-Perinatal Medicine Physician provider in Seattle, WA (NPI 1821443516).
Provider details
- NPI number
- 1821443516
- Entity type
- Individual
- Primary specialty
- Neonatal-Perinatal Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- No
- License
- G9068021 (WA)
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
10 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
- 2016-04-29
- Last updated
- 2023-09-19
- Certified
- 2023-09-19
Frequently asked questions
- What is Sandy Johng's NPI number?
- Sandy Johng's National Provider Identifier (NPI) is 1821443516, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sandy Johng's specialty?
- Sandy Johng is listed in the NPPES registry with a primary specialty of Neonatal-Perinatal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Sandy Johng located?
- Sandy Johng's practice location on file with NPPES is 1959 Ne Pacific St, Seattle, WA 98195-0001.
- What is Sandy Johng's phone number?
- The practice phone number listed in the NPPES registry for Sandy Johng is (206) 520-5000.
- Does Sandy Johng accept Medicare?
- Sandy Johng is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sandy Johng's NPI active?
- Yes — Sandy Johng's NPI (1821443516) is active in the NPPES registry as of the last update on 2023-09-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.