Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

William J. Waldron, CRNA

Certified Registered Nurse Anesthetist in Calais, ME · enumerated 2005.

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

National Provider Identifier

1073500633

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Registry record

Entity type Individual (Type 1)

Name William J. Waldron

Credential CRNA

Sex Male

Practice address 24 Hospital Ln, Calais, ME, 04619

Phone (207) 454-7521

Fax (207) 454-9247

Enumeration date Sep 29, 2005

Last updated in NPPES Sep 25, 2024

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License RN320844L (PA) Secondary

367500000X Certified Registered Nurse Anesthetist Physician Assistants & Advanced Practice Nursing Providers · License 047978 (PA) Secondary

367500000X Certified Registered Nurse Anesthetist Physician Assistants & Advanced Practice Nursing Providers · License RNA243044 (ME) Primary

CRNA · Certified Registered Nurse Anesthetist: An advanced practice nurse specializing in anesthesia care. About the CRNA credential

Other identifiers

Identifier	Type	State	Issuer
50003218	Other	PA	CAPITAL ADVANTAGE
211803000	Other	PA	INDEP. BLUE CROSS
78003	Other	PA	GEISINGER
1433520	Other	PA	KHP CENTRAL
430075687	Other	PA	RAIL ROAD MEDICARE
1433520	Other	PA	HIGHMARK

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

Where does William Waldron practice?

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

What is the NPI number for William Waldron?

The National Provider Identifier (NPI) for William Waldron is 1073500633, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Calais Community Hospital Critical Access Hospital · Calais, ME NPI 1922001049 Calais Community Hospital Medicare Defined Swing Bed Hospital Unit · Calais, ME NPI 1376546143 Elizabeth Eliacin Internal Medicine Physician · Calais, ME NPI 1215918461 Wendy Crawford Orthopaedic Surgery Physician · Calais, ME NPI 1811962988 Mona Van Wart Registered Dietitian · Calais, ME NPI 1902862584 Gregory Whatley Emergency Medicine Physician · Calais, ME NPI 1124050141 Thomston Trowbridge Emergency Medicine Physician · Calais, ME NPI 1821190471 Calais Regional Hospital Diagnostic Radiology Physician · Calais, ME NPI 1902907983

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-09-25.