PROVIDER PROFILE · NPI 1972595528

David TonnemacherM.D.

CardiologyGlendale, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

448

Unique beneficiaries

—

Total services

1,267

Distinct HCPCS

Medicare payment

$85K

Peer benchmark

Total Medicare services vs. 1,869 Cardiology providers in CA — below median (cohort median 2,371).

PRESCRIBING · PART D · 2024

Total Rx claims

2,286

Beneficiaries

—

Total drug cost

$163K

Distinct drugs

Brand share

14.4%

Top prescribed drugs

Atorvastatin Calcium222 claims

Losartan Potassium209 claims

Rosuvastatin Calcium138 claims

Levothyroxine Sodium123 claims

Metoprolol Succinate118 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$205

Payment records

By payment type

Food and Beverage$205

REFERRAL NETWORK

Where David Tonnemacher'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). 10 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
21st Century Diagnostic Laboratory, Inc. Clinical Laboratory · Burbank, CA	239	1,358
DIGNITY COMMUNITY CARE	65	191
Unilab Corporation Clinical Laboratory · West Hills, CA	30	81
JOE, STANTON	29	51
USC VERDUGO HILLS HOSPITAL, LLC	20	61
WONG, STEVEN	15	23
Justine Park Dermatology · Glendale, CA	14	28
Bruce Bagheri Cardiology · Glendale, CA	13	74
BROWN, STEVEN	13	22
PROVIDENCE HEALTH SYSTEM - SOUTHERN CALIFORNIA	11	24

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