Pen-Laing Chang, MD
NPI 1457358897 · Neonatal-Perinatal Medicine Physician · Rancho Cucamonga, CA
Pen-Laing Chang, MD is a Neonatal-Perinatal Medicine Physician provider in Rancho Cucamonga, CA (NPI 1457358897).
Provider details
- NPI number
- 1457358897
- Entity type
- Individual
- Primary specialty
- Neonatal-Perinatal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- A44876 (CA)
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
- 2005-06-30
- Last updated
- 2008-05-12
Frequently asked questions
- What is Pen-Laing Chang's NPI number?
- Pen-Laing Chang's National Provider Identifier (NPI) is 1457358897, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Pen-Laing Chang's specialty?
- Pen-Laing Chang is listed in the NPPES registry with a primary specialty of Neonatal-Perinatal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Pen-Laing Chang located?
- Pen-Laing Chang's practice location on file with NPPES is 6339 Daylily Ct, Rancho Cucamonga, CA 91737-3658.
- What is Pen-Laing Chang's phone number?
- The practice phone number listed in the NPPES registry for Pen-Laing Chang is (909) 989-3875.
- Is Pen-Laing Chang's NPI active?
- Yes — Pen-Laing Chang's NPI (1457358897) is active in the NPPES registry as of the last update on 2008-05-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.