JOHN E. FASSLER MD – NPI #1891798757
Internal Medicine

An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.

Health Care Provider Taxonomy Code for Internal Medicine

JOHN FASSLER is a physician located in ROCK HILL, SC. NPPES has assigned the NPI number 1891798757 to JOHN FASSLER on May 24, 2005. It is a Type-1 NPI, indicating this NPI number is associated with an individual. The primary taxonomy selected by this provider is 207RN0300X from the Health Care Provider Taxonomy code set, which is classified as Internal Medicine, specializing in Nephrology

The NPI profile was last updated on Feb 05, 2026. Use the NPI data found here to bill health insurance companies, identify providers enrolled in Medicare and Medicaid services or other HIPAA compliant transactions. See the complete NPI profile for JOHN FASSLER below.

NPI Profile for
JOHN E. FASSLER

NPI Number
1891798757
Enumeration Date

(more than 21 years ago)
Entity Type
Type-1  Individual (Male)
Legal Name
JOHN E. FASSLER
Credentials
MD
Primary location
1436 RIVERCHASE BLVD
ROCK HILL, SC 29732-1777
Phone: (803) 329-2636 Fax: (803) 329-2184
1 Other location(s):
322 S Main St
Lancaster, SC 29720-2437
Phone: (803) 329-2636
Mailing address
Same as primary location
Sole Proprietor
No
Updated
Certification Date
Feb 05, 2026

Note: NPPES allows providers to attest to the accuracy of their NPI data. When a provider request any change to the NPI record, they will be able to attest to their changed NPI data, resulting in an updated certification date.

Identifiers

Identifiers for JOHN FASSLER

Identifiers are used to associate other provider identifiers such as Medicaid or other insurers (ie:, Blue Cross, Blue Shield, Aetna, Kaiser-Permanente, etc.), with their NPI number. These identifiers can be used in matching an NPI number to an insurer's records. However, not all providers have such numbers and not all providers choose to include them in their NPI information.

DescriptionIssuerStateIdentifier
medicaidSCT38527
Taxonomy Code(s)

A taxonomy code is a code that describes the health care service provider's type, classification, and the area of specialization. The primary specialty for this provider is indicated as (Primary) below.

Taxonomy Classification / Specialization State License
207RN0300X
- Internal Medicine / Nephrology (Primary)		 SC 19767

The taxonomy codes are selected by the provider at the time of NPI registration. Selection of a taxonomy code does not replace any credentialing or validation process that the provider requesting the code should complete.

Additional Information

Education
OHIO STATE UNIVERSITY COLLEGE OF MEDICINE - Graduated 1991
Accepts Medicare
This provider accepts Medicare-approved amount as payment in full. The Medicare-approved amount is the total the provider can be paid. When a provider accepts the Medicare-approved amount as payment, you won't be billed for more than the Medicare deductible & coinsureance.
Medicare Ordering & Referring
Provider can:
  • Refer to Part B
  • Order Durable Medical Equipment
  • Refer to Home Health Agency
  • Order Power Mobility Devices
Affiliations
JOHN FASSLER is affiliated with the following medical group(s):
  • HOSPITAL
    • MUSC HEALTH LANCASTER MEDICAL CENTER
      800 W MEETING ST
      LANCASTER, SC 29720
    • PIEDMONT MEDICAL CENTER
      222 S HERLONG AVE
      ROCK HILL, SC 29730
  • DIALYSIS FACILITY
    • DAVITA FORT MILL DIALYSIS
      1975 CAROLINA PLACE DR
      FORT MILL, SC 29708
    • DAVITA LANCASTER SC DIALYSIS
      1100 WEST MEETING STREET
      LANCASTER, SC 29720
    • FRESENIUS MEDICAL CARE FORT LAWN
      5707 WILLOWBROOK ST
      FORT LAWN, SC 29714

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