What is John Sim's specialty?

John Sim (NPI 1497857510) is a Medicare-billing provider whose primary specialty is Internal Medicine in Santa Barbara, CA.

Where does John Sim practice?

John Sim practices in Santa Barbara, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1497857510.

How much does Medicare pay John Sim?

John Sim (NPI 1497857510) received approximately $100K in total Medicare Part B payments, serving 424 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1497857510

John SimM.D.

PRACTICESANSUM CLINICSee all providers at this practice →

Internal MedicineSanta Barbara, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

805

Unique beneficiaries

—

Total services

918

Distinct HCPCS

Medicare payment

$96K

Peer benchmark

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

PRESCRIBING · PART D · 2024

Total Rx claims

5,193

Beneficiaries

—

Total drug cost

$279K

Distinct drugs

Brand share

15.1%

Top prescribed drugs

Atorvastatin Calcium673 claims

Amlodipine Besylate375 claims

Levothyroxine Sodium295 claims

Losartan Potassium224 claims

Lisinopril213 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

REFERRAL NETWORK

Where John Sim'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). 17 inbound referrers · 23 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Pacific Diagnostic Laboratories Clinical Laboratory · Santa Barbara, CA	168	566
SANTA BARBARA COTTAGE HOSPITAL	47	99
POJUNAS, KATHLEEN	33	69
Pacific Point Laboratories, Inc. Clinical Laboratory · San Luis Obispo, CA	29	63
Michael Trambert Diagnostic Radiology · Santa Barbara, CA	28	51
James Benzian Diagnostic Radiology · Santa Barbara, CA	24	41
Robert Leposavic Dermatology · Santa Barbara, CA	23	43
Sean Snodgress Diagnostic Radiology · Santa Barbara, CA	20	36
Christopher Kuzminski Diagnostic Radiology · Santa Barbara, CA	19	47
Colin Shafer Cardiology · Santa Barbara, CA	18	39
Taylor Holve Cardiology · Santa Barbara, CA	15	41
CISEK, PAUL	15	33

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
Pacific Diagnostic Laboratories Clinical Laboratory · Santa Barbara, CA	131	425
Michael Shenoda Interventional Cardiology · Santa Barbara, CA	33	80
SANTA BARBARA COTTAGE HOSPITAL	32	67
John Yoon Diagnostic Radiology · Santa Barbara, CA	26	53
Pacific Point Laboratories, Inc. Clinical Laboratory · San Luis Obispo, CA	20	38
John Wheelock Diagnostic Radiology · Santa Barbara, CA	20	35
POJUNAS, KATHLEEN	19	39
Bernard Chow Diagnostic Radiology · Santa Barbara, CA	17	28
James Benzian Diagnostic Radiology · Santa Barbara, CA	17	25
Peter Ford Dermatology · Santa Barbara, CA	16	25
Michael Trambert Diagnostic Radiology · Santa Barbara, CA	16	30
Steven Hartzman Diagnostic Radiology · Santa Barbara, CA	16	33

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