What is Mark Sun's specialty?

Mark Sun (NPI 1487617593) is a Medicare-billing provider whose primary specialty is Colorectal Surgery (Proctology) in Coon Rapids, MN.

Where does Mark Sun practice?

Mark Sun practices in Coon Rapids, MN, based on the location reported in the CMS Medicare provider datasets for NPI 1487617593.

How much does Medicare pay Mark Sun?

Mark Sun (NPI 1487617593) received approximately $32K in total Medicare Part B payments, serving 145 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1487617593

Mark SunMD

Colorectal Surgery (Proctology)Coon Rapids, MNI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

107

Unique beneficiaries

—

Total services

112

Distinct HCPCS

Medicare payment

$11K

Peer benchmark

Total Medicare services vs. 45 Colorectal Surgery (Proctology) providers in MN — below median (cohort median 267).

PRESCRIBING · PART D · 2024

Total Rx claims

200

Beneficiaries

—

Total drug cost

$2K

Distinct drugs

Brand share

64.0%

Top prescribed drugs

Ondansetron80 claims

Peg3350/Sod Sulf,bicarb,cl/Kcl28 claims

Neomycin Sulfate28 claims

Metronidazole27 claims

Peg3350/Sod Sulf,bicarb,cl/Kcl20 claims

QUALITY · MIPS · 2024

Final MIPS score

88.6

Quality

75.4

Cost

75.8

Improvement activities

40.0

Promoting interop.

100.0

Payment adjustment

0.57%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

REFERRAL NETWORK

Where Mark Sun'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). 4 inbound referrers · 5 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
ALLINA HEALTH SYSTEM	85	282
NPI 1235539180	21	29
Bridget Kimker Physician Assistant · Woodbury, MN	19	117
FAIRVIEW HEALTH SERVICES	16	22

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
FAIRVIEW HEALTH SERVICES	42	61
ALLINA HEALTH SYSTEM	33	145
ALLINA HEALTH SYSTEM	21	47
Bridget Kimker Physician Assistant · Woodbury, MN	15	128
Aaron Link Gastroenterology · Saint Paul, MN	12	21

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