What is Donald Klug's specialty?

Donald Klug (NPI 1811923568) is a Medicare-billing provider whose primary specialty is Internal Medicine in Roseville, CA.

Where does Donald Klug practice?

Donald Klug practices in Roseville, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1811923568.

How much does Medicare pay Donald Klug?

Medicare Part B utilization, prescribing (Part D), MIPS quality scores, and industry payments for Donald Klug (NPI 1811923568) are detailed on this CareTrace profile.

PROVIDER PROFILE · NPI 1811923568

Donald Klug

PRACTICESIERRA RHEUMATOLOGY INC, A PROFESSIONAL CORPORATIONSee all providers at this practice →

Internal MedicineRoseville, CAI

MEDICARE UTILIZATION · PART B · 2024

No data available for this provider in 2024.

PRESCRIBING · PART D · 2024

Total Rx claims

125

Beneficiaries

—

Total drug cost

$784

Distinct drugs

Brand share

20.8%

Top prescribed drugs

Atorvastatin Calcium27 claims

Amlodipine Besylate25 claims

Lisinopril25 claims

Levothyroxine Sodium22 claims

Clopidogrel Bisulfate14 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

REFERRAL NETWORK

Where Donald Klug'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). 19 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
ADVENTIST HEALTH CLEARLAKE HOSPITAL INC.	111	784
William Duge Diagnostic Radiology · Saint Helena, CA	65	197
David Racker Diagnostic Radiology · Saint Helena, CA	62	190
Lakeshore Fire Prot District Ambulance Service Provider · Clearlake, CA	52	175
Fuad Kuliyev Internal Medicine · Susanville, CA	46	154
Geoffrey Horn Diagnostic Radiology · Saint Helena, CA	36	117
James Gude Critical Care (Intensivists) · Sebastopol, CA	35	174
ADVENTIST HEALTH CLEARLAKE HOSPITAL INC.	32	120
Leon Jackson Diagnostic Radiology · Winnemucca, NV	32	82
Kathie Calloway Emergency Medicine · Long Beach, CA	31	120
NORTHEASTERN RURAL HEALTH CLINICS	30	67
HOLMES, PAUL	28	95

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

Healthparse Signals

Monitor this provider for changes — dated NPI change events