Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. William F. Cale, MD

Sleep Medicine (Internal Medicine) Physician in Harrisonburg, VA · enumerated 2006 · practices at Optima Health Plan.

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

National Provider Identifier

1376591172

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Registry record

Entity type Individual (Type 1)

Name Dr. William F. Cale

Credential MD

Sex Male

Practice address 640 S Main St, Harrisonburg, VA, 22801

Phone (540) 437-8230

Fax (540) 433-4123

Enumeration date May 4, 2006

Last updated in NPPES Oct 4, 2011

Taxonomy & licenses

207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians · License 0101033933 (VA) Secondary

207RS0012X Sleep Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License O101033933 (VA) Primary

207RC0200X Critical Care Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License 0101033933 (VA) Secondary

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
0083640000	Other	WV	WV MEDICAID
140294	Other	-	ANTHEM/BCBS
18163	Other	VA	OPTIMA
700215195	Other	-	CIGNA
1000870001	Other	VA	DME PROVIDER
5832322	Medicaid	VA	-
0817700001	Other	-	SOUTHERN HEALTH
290013388	Other	-	RAILROAD MEDICARE

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 William Cale's NPI record?

Cross-check NPI 1376591172 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1376591172 active?

Yes, as of the latest NPPES snapshot, NPI 1376591172 is active (record last updated 2011-10-04).

Other providers at this practice address

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Christopher Moore Family Nurse Practitioner · Harrisonburg, VA NPI 1962474924 Heather Miller Adult Health Nurse Practitioner · Harrisonburg, VA NPI 1558305607 Christine Fasching Maphis Family Nurse Practitioner · Harrisonburg, VA NPI 1679832414 Optima Health Plan Family Medicine Physician · Harrisonburg, VA NPI 1316652696

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-10-04.