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Troy Lyman Berg, M.D.

Orthopaedic Surgery Physician in Altoona, WI · enumerated 2006 · practices at Chippewa Valley Orthopedics and Sports Medicine Clinic Sc.

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

National Provider Identifier

1740216845

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Registry record

Entity type Individual (Type 1)
Name Troy Lyman Berg
Credential M.D.
Sex Male
Practice address 1200 Oakleaf Way Ste A, Altoona, WI, 54720
Phone (715) 832-1400
Fax (715) 832-4187
Enumeration date Jun 23, 2006
Last updated in NPPES Jun 3, 2026

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 39869 (WI) Primary
207XX0005X Sports Medicine (Orthopaedic Surgery) Physician Allopathic & Osteopathic Physicians · License 39869 (WI) 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
32440300 Medicaid WI -
54456 Other WI SECURITY HEALTH PLAN
1852957 Other WI UNITED HEALTHCARE
378L5BE Other WI BCBS MN
P00171099 Other WI RAILROAD
09 07598 Other WI MEDICA/SELECTCARE EC
09-07599 Other WI MEDICA/SELECTCARE CF
137616600 Other WI OWCP
5725706 Other WI AETNA

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

Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Troy Berg?
Troy Berg is registered in NPPES with the primary taxonomy of Orthopaedic Surgery Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-06-03.