Alexander Nathaniel Fleischhacker, DO
Alexander Nathaniel Fleischhacker is a Internal Medicine Physician provider (Internal Medicine) practicing in Gainesville, FL, registered in the NPPES registry with NPI 1578138533 since 2021. The credential DO stands for Doctor of Osteopathic Medicine.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1578138533 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Alexander Nathaniel Fleischhacker |
| Credential | DO |
| Sex | Male |
| Practice address | 1600 SW ARCHER RD, Gainesville, FL, 32610 |
| Phone | 3522650379 |
| Enumeration date | 2021-05-23 |
| Last updated in NPPES | 2024-09-11 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 390200000X | Student in an Organized Health Care Education/Training Program | Secondary | — | — |
| 207R00000X | Internal Medicine Physician | Primary | OS21045 | FL |
DO — Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential
Copy-ready billing details
Provider: Alexander Fleischhacker, DO NPI: 1578138533 Taxonomy: 207R00000X (Internal Medicine Physician) Address: 1600 SW ARCHER RD, Gainesville, FL, 32610
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1285551556 | Zydrei Waj Tancinco | Individual | Anesthesiologist Assistant | Gainesville, FL |
| 1598699605 | Mei Stalder | Individual | Obstetrics & Gynecology Nurse Practitioner | Gainesville, FL |
| 1669475554 | Walter Milton | Individual | Diagnostic Radiology Physician | Gainesville, FL |
| 1477556371 | Stephen Ball | Individual | Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician | Gainesville, FL |
| 1669476347 | Joan English | Individual | Physician Assistant | Gainesville, FL |
| 1396749040 | Mohamed Ahmed | Individual | Neonatal-Perinatal Medicine Physician | Gainesville, FL |
| 1477558716 | Thomas Marsland | Individual | Hematology & Oncology Physician | Gainesville, FL |
| 1295730737 | Tung Wynn | Individual | Pediatric Hematology & Oncology Physician | Gainesville, FL |
Verify this record
Cross-check NPI 1578138533 against the authoritative CMS record: view Alexander Nathaniel Fleischhacker 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
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2024-09-11.