John Fassler, MD
John Fassler, MD holds NPI 1891798757, with a primary taxonomy of nephrology physician and a practice location in Rock Hill, SC. The number was issued on May 24, 2005 and the NPPES record was last updated on February 5, 2026. One additional practice location is listed.
Taxonomies and licenses
| Taxonomy | Code | License |
|---|---|---|
| Nephrology Physician Primary | 207RN0300X | 19767 (SC) |
Practice locations
Local context
Active NPPES records list 54 providers with nephrology physician as the primary taxonomy within 25 miles of this practice location's ZIP code, 11 of them within 10 miles.
The same primary taxonomy is listed by 254 in South Carolina and 17,730 nationwide.
These are counts from NPPES records, not a ranking or recommendation. Distances are measured between ZIP code centers, not street addresses.
Record history
- Name on record
- John E Fassler
- Status
- Active
- NPI issued
- Last updated in NPPES
Is this your record? Updates are made through NPPES, the official National Plan and Provider Enumeration System.
NPPES data as of · Source: CMS NPPES
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