PROVIDER PROFILE · NPI 1891798757

John FasslerMD

PRACTICENEPHROLOGY ASSOCIATES PASee all providers at this practice →

NephrologyRock Hill, SCI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,292

Unique beneficiaries

—

Total services

1,970

Distinct HCPCS

Medicare payment

$144K

Peer benchmark

Total Medicare services vs. 138 Nephrology providers in SC — above median (cohort median 2,014).

PRESCRIBING · PART D · 2024

Total Rx claims

343

Beneficiaries

—

Total drug cost

$18K

Distinct drugs

Brand share

7.0%

Top prescribed drugs

Amlodipine Besylate55 claims

Metoprolol Succinate48 claims

Furosemide39 claims

Losartan Potassium36 claims

Dapagliflozin Propanediol24 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$66

Payment records

By payment type

Food and Beverage$66

REFERRAL NETWORK

Where John Fassler's patients come from & go

Directional shared-patient flow from Medicare claims — who sends patients to this provider (inbound) and where this provider's patients go next (outbound). 89 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
SOLSTAS LAB PARTNERS GROUP LLC	414	1,521
Ramesh Bhoothapuri Nephrology · Rock Hill, SC	245	1,033
LANCASTER HOSPITAL CORPORATION	220	1,181
AMISUB OF SOUTH CAROLINA, INC.	196	655
Kenneth Fox Diagnostic Radiology · Charlotte, NC	118	410
Tommy Weaver Diagnostic Radiology · Charlotte, NC	115	418
Julie Webster Diagnostic Radiology · Spartanburg, SC	103	430
County Of Lancaster Ambulance Service Provider · Lancaster, SC	87	257
PETERSON, ERIC	78	290
Deepak Shah Cardiology · Lancaster, SC	76	255
Zafar Iqbal Cardiology · Lancaster, SC	72	270
Ifediora Afulukwe Internal Medicine · Heath Springs, SC	72	349

Refers patients to

Outbound — where patients go next

No outbound pairs above the suppression threshold.

Source: CMS Physician Shared Patient Patterns (30-day window, Medicare FFS). Direction = a beneficiary seen by the first provider, then the second, within 30 days; a proxy for referral, not a documented referral. Pairs with fewer than 11 shared beneficiaries are suppressed.

CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore

OIG/SAM exclusion screening, sanctions history