Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. William Benjamin Zolper, M.D.

Interventional Pain Medicine Physician in Bangor, ME · enumerated 2005.

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

National Provider Identifier

1427043207

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Registry record

Entity type Individual (Type 1)

Name Dr. William Benjamin Zolper

Credential M.D.

Sex Male

Practice address 1365 Broadway, Bangor, ME, 04401

Phone (207) 942-6226

Fax (207) 992-2756

Enumeration date Sep 16, 2005

Last updated in NPPES May 25, 2023

Taxonomy & licenses

207LP2900X Pain Medicine (Anesthesiology) Physician Allopathic & Osteopathic Physicians · License 013538 (ME) Secondary

208VP0014X Interventional Pain Medicine Physician Allopathic & Osteopathic Physicians · License 013538 (ME) 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
M76426	Other	ME	CIGNA
3564058	Other	ME	AETNA
100575400	Other	ME	DEPART OF LABOR
AA16050	Other	ME	HARVARD PILGRIM
135640000	Medicaid	ME	-

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 Zolper practice?

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

What is the NPI number for William Zolper?

The National Provider Identifier (NPI) for William Zolper is 1427043207, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

David Mevorach Pain Medicine (Anesthesiology) Physician · Bangor, ME NPI 1386614253 Eric Cormier Specialist · Bangor, ME NPI 1851347397 Susie Marshall Specialist · Bangor, ME NPI 1225077332 Peter Thompson Interventional Pain Medicine Physician · Bangor, ME NPI 1508809492 Brian Kaufman Interventional Pain Medicine Physician · Bangor, ME NPI 1619996063 Northeast Pain Management, PC Interventional Pain Medicine Physician · Bangor, ME NPI 1578579868 Lindsay Duplisea-White Specialist · Bangor, ME NPI 1497766398 Absolute Physical Therapy Physical Therapist · Bangor, ME NPI 1457421943

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-05-25.