Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

David L Sappenfield, MD

Retina Specialist (Ophthalmology) Physician in Durham, NC · enumerated 2005.

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

National Provider Identifier

1639161862

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Registry record

Entity type Individual (Type 1)

Name David L Sappenfield

Credential MD

Sex Male

Practice address 4102 N Roxboro St, Durham, NC, 27704

Phone (919) 595-2000

Fax (919) 595-2190

Enumeration date Aug 15, 2005

Last updated in NPPES Apr 1, 2017

Taxonomy & licenses

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 29505 (NC) Secondary

207WX0107X Retina Specialist (Ophthalmology) Physician Allopathic & Osteopathic Physicians · License 29505 (NC) 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
4454143	Other	NC	AETNA
8974496	Medicaid	NC	-
0851810	Other	NC	UNITED HEALTHCARE
561288767Q	Other	NC	CIGNA
74496	Other	NC	BCBS NC
41892	Other	NC	MEDCOST
19536	Other	NC	OPTICARE
230207	Other	NC	MAMSI

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.

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Frequently asked questions

How do I verify David Sappenfield's NPI record?

Cross-check NPI 1639161862 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1639161862 active?

Yes, as of the latest NPPES snapshot, NPI 1639161862 is active (record last updated 2017-04-01).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-04-01.