What is Frederick Stack's specialty?

Frederick Stack (NPI 1548256977) is a Medicare-billing provider whose primary specialty is Internal Medicine in Sioux City, IA.

Where does Frederick Stack practice?

Frederick Stack practices in Sioux City, IA, based on the location reported in the CMS Medicare provider datasets for NPI 1548256977.

How much does Medicare pay Frederick Stack?

Frederick Stack (NPI 1548256977) received approximately $50K in total Medicare Part B payments, serving 253 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1548256977

Frederick StackMD

PRACTICEMHC CHILD PROTECTIONSee all providers at this practice →

Internal MedicineSioux City, IAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

380

Unique beneficiaries

—

Total services

650

Distinct HCPCS

Medicare payment

$47K

Peer benchmark

Total Medicare services vs. 418 Internal Medicine providers in IA — below median (cohort median 722).

PRESCRIBING · PART D · 2024

Total Rx claims

107

Beneficiaries

—

Total drug cost

$604

Distinct drugs

Brand share

22.4%

Top prescribed drugs

Prednisone25 claims

Amoxicillin/Potassium Clav13 claims

Amlodipine Besylate13 claims

Cefdinir12 claims

Clopidogrel Bisulfate11 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

No data available for this provider in 2024.

REFERRAL NETWORK

Where Frederick Stack'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). 38 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
MOUNTAIN VISTA MEDICAL CENTER LP	190	288
BULLHEAD CITY HOSPITAL CORPORATION	127	597
NPI 1316992407	81	108
Stephen Colvin Interventional Radiology · Mesa, AZ	49	69
HUMAN, DONALD	42	59
Joachin Okafor Emergency Medicine · Phoenix, AZ	35	41
Channa Prasad Cardiology · Bullhead City, AZ	34	131
John Adan Cardiology · El Paso, TX	34	190
Saeid Mohammadi Internal Medicine · Tempe, AZ	31	41
BARNES, JEREMY	30	39
Neal Clinger Diagnostic Radiology · Idaho Falls, ID	23	77
Ricardo Alfafara Cardiology · Bullhead City, AZ	22	94

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