William B Balcom, MD

William B Balcom is a Orthopaedic Surgery Physician provider (Orthopaedic Surgery) practicing in Worcester, MA, registered in the NPPES registry with NPI 1639159841 since 2006. The credential MD stands for Doctor of Medicine.

✓ Active NPI ✓ Valid NPI checksum

NPI	1639159841
Entity type	Individual (Type 1)
Name	William B Balcom
Credential	MD
Sex	Male
Practice address	123 SUMMER STREET, SUITE 320, Worcester, MA, 01608
Phone	5083683140
Fax	5083683143
Enumeration date	2006-01-23
Last updated in NPPES	2008-07-25

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
207X00000X	Orthopaedic Surgery Physician	Primary	77380	MA

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
2115778	Medicaid	MA	—

Copy-ready billing details

Provider: William Balcom, MD
NPI: 1639159841
Taxonomy: 207X00000X (Orthopaedic Surgery Physician)
Address: 123 SUMMER STREET, SUITE 320, Worcester, MA, 01608

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1730181876	George Abraham	Individual	Internal Medicine Physician	Worcester, MA
1154306108	Gary Peters	Individual	Specialist	Worcester, MA
1043288848	Gregory Williams	Individual	Infectious Disease Physician	Worcester, MA
1750350849	Paul Arcand	Individual	Surgery Physician	Worcester, MA
1205896560	Diane Fruit	Individual	Nurse Practitioner	Worcester, MA
1770543977	Nitin Trivedi	Individual	Endocrinology, Diabetes & Metabolism Physician	Worcester, MA
1093776957	Robert Harizi	Individual	Cardiovascular Disease Physician	Worcester, MA
1801858584	Steven Donhowe	Individual	Neurology Physician	Worcester, MA

Verify this record

Cross-check NPI 1639159841 against the authoritative CMS record: view William B Balcom on the official NPPES registry .

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. Read the full guide or validate an NPI number.

Frequently asked questions

Is NPI 1639159841 active?

Yes — as of the latest NPPES snapshot, NPI 1639159841 is active (record last updated 2008-07-25).

How do I verify William Balcom's NPI record?

Cross-check NPI 1639159841 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2008-07-25.