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 2, 2026

Taxonomy & licenses

367500000X Certified Registered Nurse Anesthetist Physician Assistants & Advanced Practice Nursing Providers · License 26NJ00413200 (NJ) Primary

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) Secondary

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

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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 2026-09-02.