Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Melissa Theresa Ballak, PHARMD
Pharmacist in Wheeling, IL · enumerated 2015.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1881065365
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Registry record
Entity type Individual (Type 1)
Name Dr. Melissa Theresa Ballak
Credential PHARMD
Sex Female
Practice address 1400 E Lake-Cook Road, Wheeling, IL, 60090
Phone (847) 215-5055
Enumeration date Oct 9, 2015
Last updated in NPPES Oct 9, 2015
Taxonomy & licenses
PHARMD — Doctor of Pharmacy: A licensed pharmacist with a professional doctorate in pharmacy.
About the PHARMD 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.
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 Melissa Ballak?
Melissa Ballak is registered in NPPES with the primary taxonomy of Pharmacist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-10-09.