Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. English D Willis, MD

Pediatrics Physician in Chester, PA · enumerated 2007.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1336285451

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. English D Willis

Credential MD

Sex Female

Practice address 30 Medical Center Blvd, Suite 205, Chester, PA, 19013

Phone (610) 619-7410

Fax (610) 490-0925

Enumeration date Jan 29, 2007

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License MD028881E (PA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1336285451 active?

Yes, as of the latest NPPES snapshot, NPI 1336285451 is active (record last updated 2007-07-08).

How do I verify English Willis's NPI record?

Cross-check NPI 1336285451 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.