Marian Medical Services

What Marian Medical Services does

Marian Medical Services, LLC is a private healthcare services company headquartered in Wildwood, Missouri (St. Louis metro), that operates a turnkey office-based nuclear cardiology program for outpatient physician practices. The company deploys complete cardiac nuclear imaging capability — gamma cameras, stress testing systems, and a hot lab for radioactive isotope handling — into cardiology, primary care, and endocrinology practices without requiring any capital outlay from the participating physician. Marian Medical Services supplies NRC-licensed operations, radiopharmaceuticals, fully trained nuclear medicine technologists and medical assistants, management supervision, and professional interpretations by board-certified nuclear cardiologists, with a stated 24-hour report turnaround and protocols the company says produce among the lowest false positive rates in the country. The company cites more than 3,000 cardiac nuclear stress tests performed annually through participating practices and combined clinical and administrative leadership exceeding 50 years of experience.

The technical model is built around conventional nuclear cardiology imaging rather than any proprietary software platform, with interpretive quality and protocol precision — not algorithmic automation — positioned as the clinical differentiator. Regulatory operations under the Nuclear Regulatory Commission constitute a meaningful share of the value Marian provides, since individual practices would otherwise face hot-lab licensing, isotope procurement, and quality assurance obligations they are typically not structured to handle. The interpretive layer — board-certified nuclear cardiologists producing university-caliber reads on a 24-hour cadence — is the company's primary clinical asset.

Commercially, Marian Medical Services uses a direct sales motion targeting individual physicians in cardiology, primary care, and endocrinology, with implementation positioned to reach operational status within 90 days of contractual commitment. Practices bill and collect the full technical and supervisory components of nuclear stress testing rather than the minimal hospital supervision fee, capturing substantially higher office-based reimbursement; the company offers custom proforma financial projections in lieu of published pricing. The company is privately held, discloses no funding, ownership, or management roster publicly, and reports operating geographies limited to the Midwest from a single Wildwood, Missouri address.

Name

Marian Medical Services

Legal name

Marian Medical Services, LLC

Website

https://marianmed.com

Company type

Private

Operating status

Operating

Headcount range

11–50 employees

Short description

Marian Medical Services is a private Missouri-based healthcare services firm that delivers turnkey office-based nuclear cardiology programs to cardiology, primary care, and endocrinology practices, supplying equipment, NRC-licensed operations, technologists, isotopes, and board-certified interpretations on a 90-day implementation model.

Ownership category

akta.pro rank

Product category

Outpatient Nuclear Cardiology Services

NAICS

Diagnostic Imaging Centers (621512)

SIC

Services-Medical Laboratories (8071)

akta.pro primary industry

Cardiac Diagnostic Centers (Echo/Stress Testing/Holter) (HLAFAKAE)

akta.pro secondary industry

Nuclear Medicine Clinical Services & Therapy Centers (HLAIAGAI)

Keywords

• Nuclear cardiology services
• Cardiac stress testing
• Myocardial perfusion imaging
• Cardiac diagnostic services
• Nuclear medicine services

Headquarters

HQ city

St Louis

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Infrastructure, Personnel, Supply Chain, Operations

Revenue model

1. Technical and Supervisory Component Billing: Participating physicians bill and collect for the full technical and supervisory components of nuclear stress testing procedures performed in their offices. Marian Medical Services provides all infrastructure and professional support while practices capture the full reimbursement instead of minimal hospital supervision fees.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

Marian Medical Services provides a turnkey, office-based nuclear cardiology program for private physician practices. The program supplies the gamma camera, stress-testing system, hot lab, trained staff, pharmaceuticals and radioactive isotopes, regulatory licensing, ongoing management, and interpretations by board-certified nuclear cardiologists so practices can perform cardiac nuclear stress tests in their offices.

Product overview

Marian Medical Services offers a single unified product: the Turnkey Nuclear Cardiology Program, a comprehensive office-based service that enables physician practices to perform cardiac nuclear stress testing without leaving their office. The program combines equipment provision (gamma camera, stress system, hot lab), staffing services (nuclear medicine technologist, medical assistant), regulatory licensing (NRC and other approvals), pharmaceuticals and isotopes, management supervision, and professional interpretations by board-certified nuclear cardiologists. The service targets cardiology, primary care, and endocrinology/diabetes care practices, with claims of 3,000+ tests performed annually and implementation achievable within 90 days of contractual commitment.

Differentiator

Problem solved

Functional benefit

Products and services

• Turnkey Nuclear Cardiology Program A comprehensive office-based service that enables private cardiology, primary care, and endocrinology practices to perform cardiac nuclear stress tests in their own offices. Marian provides the gamma camera, stress-testing system, hot lab, trained nuclear medicine technologist and medical assistant, pharmaceuticals and radioactive isotopes, NRC and other regulatory licensing, ongoing management, and professional interpretations by board-certified nuclear cardiologists; the program reports a 24-hour report turnaround.

Quantifiable outcome

• 3,000+ cardiac nuclear stress tests performed annually
• +3 more outcomes

Named customers3 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Scale indicators5 records

Recent moves3 records

Expansion highlights3 records

Emerging players

• HeartFlow: HeartFlow provides CT-derived fractional flow reserve (FFR-CT) analysis as a non-invasive alternative to nuclear stress testing for assessing coronary artery disease. It represents a potentially disruptive emerging modality targeting the same cardiology referral pathway as Marian's services.
• Cleerly: Cleerly offers AI-enabled coronary CT angiography analysis for cardiac risk assessment. While not a direct nuclear imaging peer, it competes for the same diagnostic budget within cardiology and endocrinology practices that Marian currently serves.

Direct peers

• Digirad (TTG Imaging Solutions): Digirad provides mobile and fixed-site nuclear imaging services, including nuclear cardiology, to physician practices and hospitals. It is the most direct comparable to Marian's turnkey office-based nuclear cardiology model, with overlapping equipment, staffing, and interpretation service offerings.
• SmartScan Imaging: SmartScan offers outsourced nuclear medicine and cardiology imaging services to private practices with a similar managed-service delivery model. Comparable customer base of cardiology and primary care practices.
• Cardiac Imaging Inc: Cardiac Imaging Inc. provides turnkey nuclear cardiology and cardiac PET services to private practice offices, with similar equipment provisioning, staffing, and physician interpretation. Operates as a direct competitor in the office-based nuclear cardiology services market.

Others

• Lantheus Holdings: Lantheus is a leading radiopharmaceutical company supplying diagnostic imaging agents, including those used in cardiac nuclear imaging. It is an upstream ecosystem participant rather than a competitor, but supply dynamics directly affect Marian's cost structure.
• Curium Pharma: Curium is a major nuclear medicine radiopharmaceutical manufacturer supplying isotopes and cold kits used in cardiac perfusion imaging. It is an enabling supplier rather than a competitor, but its pricing and supply reliability materially impact Marian's service economics.

Broad incumbents

• GE HealthCare: GE HealthCare manufactures nuclear medicine and cardiac imaging equipment and operates broader diagnostic imaging services. As a broad incumbent, it competes with Marian at the hospital level and is a key supplier to the nuclear imaging ecosystem.
• Philips Healthcare: Philips is a major vendor of nuclear medicine gamma cameras, SPECT/CT systems, and cardiac imaging software. While not a direct services competitor, Philips supplies the core equipment platform on which Marian's service offering depends and competes indirectly via hospital imaging departments.
• Siemens Healthineers: Siemens Healthineers is a leading manufacturer of nuclear medicine imaging systems (SPECT, PET) and broader cardiac imaging equipment. A broad incumbent whose installed base competes with Marian's hospital-based alternatives via service contracts and equipment financing.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights2 records

Customer concentration

• LinkedInlinkedin.com/company/marian-medical-services

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Marian Medical Services