What is Mark Tamsen's specialty?

Mark Tamsen (NPI 1346241452) is a Medicare-billing provider whose primary specialty is Emergency Medicine in San Diego, CA.

Where does Mark Tamsen practice?

Mark Tamsen practices in San Diego, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1346241452.

How much does Medicare pay Mark Tamsen?

Mark Tamsen (NPI 1346241452) received approximately $80K in total Medicare Part B payments, serving 316 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1346241452

Mark TamsenMD

PRACTICETIMOTHY L CANNIS MD INCSee all providers at this practice →

Emergency MedicineSan Diego, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

512

Unique beneficiaries

—

Total services

882

Distinct HCPCS

Medicare payment

$74K

Peer benchmark

Total Medicare services vs. 5,287 Emergency Medicine providers in CA — top quintile (cohort median 355).

PRESCRIBING · PART D · 2024

Total Rx claims

2,570

Beneficiaries

—

Total drug cost

$39K

Distinct drugs

Brand share

35.7%

Top prescribed drugs

Cefuroxime Axetil193 claims

Doxycycline Hyclate183 claims

Albuterol Sulfate123 claims

Amlodipine Besylate114 claims

Naproxen112 claims

QUALITY · MIPS · 2024

Final MIPS score

0.0

Quality

0.0

Cost

0.0

Improvement activities

0.0

Promoting interop.

0.0

Payment adjustment

-9.00%

Individual

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

No data available for this provider in 2024.

REFERRAL NETWORK

Where Mark Tamsen'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). 6 inbound referrers · 17 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
SHARP CORONADO HOSPITAL AND HEALTHCARE CENTER	149	278
PHILLIPS, PAUL	16	17
American Medical Response Ambulance Service, Inc. Ambulance Service Provider · San Diego, CA	15	22
REGENTS OF THE UNIVERSITY OF CALIFORNIA	11	17
Kevin Considine Family Practice · Coronado, CA	11	16
SHARP MEMORIAL HOSPITAL	11	17

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
Ryan Limberg Emergency Medicine · San Diego, CA	66	75
SHARP CORONADO HOSPITAL AND HEALTHCARE CENTER	56	112
Thomas Diggs Cardiology · San Diego, CA	48	96
TAMSEN PROFESSIONAL SERVICES MEDICAL CORPORATION	35	37
Bobak Salami Internal Medicine · San Diego, CA	35	75
Roger Oen Family Practice · Coronado, CA	27	64
Howard Bear Diagnostic Radiology · San Diego, CA	26	34
Kenneth Warm Family Practice · Coronado, CA	25	54
Joel Sigeti Diagnostic Radiology · San Diego, CA	25	36
Christopher Sebrechts Diagnostic Radiology · San Diego, CA	21	28
Rana Ann Ram Emergency Medicine · Coronado, CA	19	26
Scott Boles Diagnostic Radiology · San Diego, CA	18	26

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