What is Derek Marsee's specialty?

Derek Marsee (NPI 1952592743) is a Medicare-billing provider whose primary specialty is Pathology in Sacramento, CA.

Where does Derek Marsee practice?

Derek Marsee practices in Sacramento, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1952592743.

How much does Medicare pay Derek Marsee?

Derek Marsee (NPI 1952592743) received approximately $468K in total Medicare Part B payments, serving 3,277 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1952592743

Derek MarseeMD, PHD

PathologySacramento, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

5,048

Unique beneficiaries

—

Total services

7,296

Distinct HCPCS

Medicare payment

$460K

Peer benchmark

Total Medicare services vs. 1,209 Pathology providers in CA — top quintile (cohort median 1,423).

PRESCRIBING · PART D · 2024

No data available for this provider in 2024.

QUALITY · MIPS · 2024

Final MIPS score

84.2

Quality

80.2

Cost

0.0

Improvement activities

40.0

Promoting interop.

0.0

Payment adjustment

0.39%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$102

Payment records

By payment type

Food and Beverage$102

Top paying entities

Food and Beverage$102

REFERRAL NETWORK

Where Derek Marsee'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). 30 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
David No Dermatology · Folsom, CA	214	248
Marc Silverstein Dermatology · Sacramento, CA	95	149
Christopher Ha Dermatology · Roseville, CA	73	88
Christine Elder Physician Assistant · Sonora, CA	62	77
PASHAEI, SHAYESTEH	54	80
David Guillen Dermatology · Gastonia, NC	53	55
Linda Sheu Dermatology · Roseville, CA	45	62
Jennifer Allen Physician Assistant · Cooperstown, NY	36	43
SUTTER VALLEY HOSPITALS	35	45
BRAUNSTEIN, SHEILA	32	39
Mary Markiewitz Physician Assistant · Sacramento, CA	32	34
GHISELLI, ROBERT	29	41

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