Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mrs. Andrea S Markham, PA-C
Physician Assistant in Geneva, IL · enumerated 2010.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1558688531
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Mrs. Andrea S Markham
Credential PA-C
Sex Female
Practice address 351 Delnor Dr, Geneva, IL, 60134
Phone (630) 938-8550
Fax (630) 938-8849
Enumeration date Apr 29, 2010
Last updated in NPPES Aug 8, 2013
Taxonomy & licenses
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 085-003398 (IL) Primary
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 206147252 | Other | IL | MEDICARE PTAN (INDIVIDUAL) |
| 206147 | Other | IL | MEDICARE PTAN (GROUP) |
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
Where does Andrea Markham practice?
The practice location on file with NPPES is in Geneva, IL. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Andrea Markham?
The National Provider Identifier (NPI) for Andrea Markham is 1558688531, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → Terry Labarre Cardiovascular Disease Physician · Geneva, IL NPI 1386631018 William Mackin Cardiovascular Disease Physician · Geneva, IL NPI 1215924949 John Kefer Cardiovascular Disease Physician · Geneva, IL NPI 1477549103 Kurt Williams Cardiovascular Disease Physician · Geneva, IL NPI 1306833850 Ross Van Dorpe Cardiovascular Disease Physician · Geneva, IL NPI 1376530634 Nauman Mushtaq Interventional Cardiology Physician · Geneva, IL NPI 1023037488 Christopher George Hematology & Oncology Physician · Geneva, IL NPI 1235143835 Jennifer Edens Nurse Practitioner · Geneva, IL NPI 1427065200
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-08-08.