PROVIDER PROFILE · NPI 1679523518

Stefan WillgingMD

Internal MedicineSan Diego, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

2,418

Unique beneficiaries

—

Total services

4,757

Distinct HCPCS

Medicare payment

$238K

Peer benchmark

Total Medicare services vs. 10,499 Internal Medicine providers in CA — top quintile (cohort median 531).

PRESCRIBING · PART D · 2024

Total Rx claims

8,528

Beneficiaries

—

Total drug cost

$876K

Distinct drugs

153

Brand share

25.3%

Top prescribed drugs

Atorvastatin Calcium477 claims

Rosuvastatin Calcium344 claims

Levothyroxine Sodium317 claims

Alprazolam227 claims

Amlodipine Besylate196 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$2K

Payment records

By payment type

Food and Beverage$2K

REFERRAL NETWORK

Where Stefan Willging'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). 9 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Unilab Corporation Clinical Laboratory · West Hills, CA	47	133
SHARP CORONADO HOSPITAL AND HEALTHCARE CENTER	42	131
Lori Baker Diagnostic Radiology · San Diego, CA	19	35
CAMPBELL, DAVID	18	39
John Johnson Diagnostic Radiology · San Diego, CA	17	30
Amy Sorgent Nurse Practitioner · San Diego, CA	16	37
Bruce Kimura Cardiology · San Diego, CA	12	27
SHARP MEMORIAL HOSPITAL	11	21
Jeffrey Mullvain Cardiology · San Diego, CA	11	76

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