Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Harry W Buchanan IV, M.D.

Ophthalmology Physician in Allentown, PA · enumerated 2006.

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

National Provider Identifier

1538246756

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Harry W Buchanan IV

Credential M.D.

Sex Male

Practice address 400 N 17th St, Suite 200, Allentown, PA, 18104

Phone (610) 433-2021

Fax (610) 433-7856

Enumeration date Nov 1, 2006

Last updated in NPPES Sep 3, 2009

Taxonomy & licenses

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License MD029484E (PA) Primary

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

Other identifiers

Identifier	Type	State	Issuer
435344	Other	PA	BLUE SHIELD
03168201	Other	PA	BLUE CROSS
1028623	Medicaid	PA	-

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

What is the NPI number for Harry Buchanan?

The National Provider Identifier (NPI) for Harry Buchanan is 1538246756, a Type 1 (individual) record in the CMS NPPES registry.

Where does Harry Buchanan practice?

The practice location on file with NPPES is in Allentown, PA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-09-03.