Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. David Robert Nalin, M.D.

Internal Medicine Physician in West Chester, PA · enumerated 2012.

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

National Provider Identifier

1083967863

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. David Robert Nalin

Credential M.D.

Sex Male

Practice address 100 Lucky Hill Rd, West Chester, PA, 19382

Phone (610) 430-1604

Fax (610) 430-1604

Enumeration date Oct 18, 2012

Last updated in NPPES Oct 18, 2012

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License MD043065E (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 this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is David Nalin?

David Nalin is registered in NPPES with the primary taxonomy of Internal Medicine Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-10-18.