MHP logo
Focused certification exam prep
Start practice

What Does MHP Stand For?

TL;DR
  • MHP stands for Medical Health Physics, certified via the ABMP's Part II written exam.
  • The exam is four hours long with single-answer, matching, choose-all-that-apply, and Type S questions.
  • Five domains - Standards and Regulations, Structural Shielding, Radiation Oncology, Diagnostic Imaging, Nuclear Medicine - make up 75% of the blueprint.
  • The 2026 Part II fee is $690 by check or $715 through PayPal.

What "MHP" Actually Stands For

In the context of this site, MHP stands for Medical Health Physics - a specialty certification track administered by the American Board of Medical Physics (ABMP). It is important to be precise here because the letters "MHP" show up attached to several unrelated credentials in other fields. On medicalhealthexam.com, MHP always refers to the ABMP's Medical Health Physics certification, and specifically the Part II written specialty examination that most candidates and employers mean when they mention "the MHP exam."

If you're arriving at this page after seeing the acronym in a job posting, a residency requirement, or a colleague's credentials, you're in the right place. The rest of this article breaks down exactly what those letters represent in practice: an exam blueprint, a fee structure, an eligibility pathway, and a professional identity within medical physics.

Quick Definition: MHP = Medical Health Physics, a board certification pathway through the American Board of Medical Physics. The credential is earned through a sequence of parts, and the Part II written exam is the specialty-specific test most people research when they search "MHP."

Who Issues the MHP Credential

The American Board of Medical Physics (ABMP) is the certifying body behind MHP. ABMP sets the eligibility rules, builds and scores the examinations, and manages recertification. Unlike remote-proctored tests you might take from a home office, ABMP administers the Part II Medical Health Physics examination on site through ExamSoft, using the candidate's own compatible computer at a designated testing venue. That detail matters for planning: candidates need to confirm their laptop meets ExamSoft's requirements well before test day rather than assuming a testing center will supply hardware.

For a deeper walkthrough of what the certification itself represents beyond the acronym, see What Is MHP Certification? and the companion overview at MHP Certification.

Where Part II Fits in the MHP Sequence

MHP certification isn't a single exam - it's a sequence. The typical path runs through Part I (General Medical Physics) credit or an approved waiver, followed by Part II (the specialty written exam covered here), and finally Part III, an oral examination. There is also a separate, more direct pathway for candidates who are already Certified Health Physicists, allowing them to move toward the oral component without repeating every earlier step.

This site is focused specifically on Part II - the written specialty exam in Medical Health Physics - because it's the stage where most candidates feel the sharpest jump in difficulty and where targeted preparation makes the biggest difference. If you're trying to understand how tough that jump actually is, How Hard Is the MHP Exam? Complete Difficulty Guide 2026 walks through the specifics in more detail.

How the Part II Exam Is Built

Understanding what MHP stands for also means understanding how the exam behind the acronym is structured. The Part II Medical Health Physics exam runs four hours and uses a mix of question formats designed to test both recall and applied judgment:

  • Single-answer multiple choice - standard one-best-answer items.
  • Matching - pairing terms, values, or regulatory references correctly.
  • Choose-all-that-apply - items with more than one correct response, which penalize partial guessing.
  • Shared-stem Type S questions - a single clinical or technical scenario followed by multiple related questions.

The passing standard is set through a Modified Angoff process, meaning the cut score is derived from expert judgments about minimally competent performance on each item rather than a fixed percentage like 70%. That distinction matters for how you interpret your practice scores - a raw percentage on a study guide doesn't map directly to pass/fail. For a full breakdown of how the cut score actually works, see MHP Passing Score 2026: Exactly What You Need to Pass.

Key Takeaway

Because choose-all-that-apply and Type S shared-stem questions appear on the Part II exam, practicing only single-best-answer questions will leave gaps. Build in practice with multi-select and scenario-based item formats specifically.

The Nine Domains Behind the Letters

The current MHP Part II blueprint is organized into nine weighted content areas. Together, five of them - Standards and Regulations, Structural Shielding, Radiation Oncology, Diagnostic Imaging, and Nuclear Medicine - account for 75% of the exam, so they deserve the largest share of study time.

Standards and Regulations (15%)

Covers the regulatory framework medical health physicists must apply day to day.

  • Federal and state regulatory bodies and their jurisdiction
  • Licensing and reporting requirements

Structural Shielding (15%)

Focuses on designing and evaluating shielding for radiation-producing equipment and sources.

  • Barrier calculations for therapy and imaging rooms
  • Occupancy and workload factors

Radiation Oncology (15%)

Tests knowledge of physics support for therapeutic radiation delivery.

  • Treatment planning and delivery physics
  • Quality assurance for therapy units

Diagnostic Imaging (15%)

Covers physics principles behind imaging modalities used in diagnosis.

  • Image quality and dose optimization
  • Equipment performance evaluation

Nuclear Medicine / Molecular Imaging (15%)

Addresses radiopharmaceutical use, dosimetry, and instrumentation in molecular imaging.

  • Radiopharmaceutical handling and dose calculations
  • Molecular imaging equipment QA

The remaining four domains - Instrumentation (10%), Laboratory Design (5%), Radiation Biology (5%), and Non-ionizing Radiation (5%) - make up the other quarter of the blueprint. They're lower-weighted individually but still show up across shared-stem items, so they shouldn't be skipped entirely. For a domain-by-domain study breakdown with all nine areas explained in depth, see MHP Exam Domains 2026: Complete Guide to All 9 Content Areas.

DomainWeight
Instrumentation10%
Laboratory Design5%
Standards and Regulations15%
Structural Shielding15%
Radiation Oncology15%
Diagnostic Imaging15%
Nuclear Medicine (molecular imaging)15%
Radiation Biology5%
Non-ionizing Radiation5%

Who Is Allowed to Sit for MHP

Not everyone can register just because they know what MHP stands for - eligibility is gated by academic and clinical criteria. To sit for Part II, candidates generally need:

  • A relevant graduate degree in medical physics or a closely related field
  • Supervised clinical experience, with the required hours depending on degree type and residency status
  • An endorsement from a board-certified physicist
  • An endorsement from a board-certified physician
  • A completed MHP Training and Education Form documenting the above

Because these requirements vary by degree pathway and residency completion, it's worth reviewing them closely before you assume you qualify. The full breakdown is in MHP Requirements 2026: Eligibility, Prerequisites & How to Qualify.

Fees and Test-Day Logistics

The 2026 Part II fee is $690 if paid by check or $715 if paid through PayPal - a difference worth noting if you're budgeting for the exam alongside travel and prep materials. On test day, candidates bring a nonprogrammable scientific calculator; scratch paper is supplied at the venue. Because the exam is delivered through ExamSoft on the candidate's own device at a physical testing location, confirming software compatibility ahead of time avoids last-minute problems.

For the complete cost picture, including how the exam fee fits into total certification expenses, see MHP Certification Cost 2026: Complete Pricing Breakdown. Scheduling windows and deadlines are covered separately in MHP Exam Dates 2026: Testing Windows, Deadlines & Scheduling.

Pass Rate Context: Official Part II pass rates were 44% in 2023, 60% in 2024, and 57% in 2025 - calculated as candidates passing divided by candidates taking that exam, not a first-attempt-only figure. See MHP Pass Rate 2026: What the Data Shows for the full trend analysis.

Who Actually Uses MHP Certification

Once you know what the acronym stands for, the natural next question is who holds it and why. Medical Health Physics certification is typically pursued by physicists working in clinical settings where radiation safety, shielding design, and equipment physics intersect with patient care - radiation oncology departments, diagnostic imaging services, and nuclear medicine programs among them. Employers in these settings often look for board certification as a marker that a candidate can independently manage regulatory compliance, shielding evaluations, and quality assurance programs across multiple modalities.

If you're weighing whether pursuing this credential makes sense for your career stage, Is the MHP Certification Worth It? Complete ROI Analysis 2026 and MHP Salary Guide 2026: Complete Earnings Analysis go into the practical tradeoffs. For a sense of where certified physicists actually work, MHP Jobs outlines common employment settings.

Turning the Acronym Into a Study Plan

Knowing that MHP stands for Medical Health Physics doesn't tell you how to pass Part II - that takes a plan built around the blueprint weighting. A practical approach is to sequence your study weeks so the five 15%-weighted domains each get dedicated blocks before you circle back to the lower-weighted areas for reinforcement.

Weeks 1-2

Standards and Regulations + Structural Shielding

  • Build a reference sheet of regulatory bodies and reporting thresholds
  • Practice barrier and shielding calculations under timed conditions
Weeks 3-4

Radiation Oncology + Diagnostic Imaging

  • Work through treatment planning and QA scenario questions
  • Review image quality and dose-optimization tradeoffs
Week 5

Nuclear Medicine (molecular imaging)

  • Focus on radiopharmaceutical dosimetry and instrumentation QA
Week 6

Instrumentation, Lab Design, Rad Bio, Non-ionizing Radiation

  • Cover the four lower-weighted domains together
  • Run full-length practice sets mixing all nine domains and question formats

For a more detailed week-by-week strategy, including how to pace multiple-choice, matching, and Type S questions within a four-hour window, see MHP Study Guide 2026: How to Pass on Your First Attempt. And if you want a condensed reference to keep beside your notes in the final stretch, MHP Cheat Sheet 2026: One-Page Review of Must-Know Facts is built for that purpose. You can also run realistic timed practice sessions on the main practice test platform to get used to the exam's pacing before test day.

Frequently Asked Questions

What does MHP stand for on this site?

MHP stands for Medical Health Physics, a certification issued by the American Board of Medical Physics (ABMP). This site focuses specifically on the Part II written specialty examination within that certification sequence.

Is MHP the same as a general medical physics certification?

No. MHP (Medical Health Physics) is a specialty track under ABMP, distinct from Part I General Medical Physics. Candidates typically need Part I credit or an approved waiver before advancing to the Part II Medical Health Physics exam.

How long is the MHP Part II exam?

The Part II Medical Health Physics examination runs four hours and includes single-answer multiple choice, matching, choose-all-that-apply, and shared-stem Type S questions.

How much does the MHP exam cost in 2026?

The 2026 Part II fee is $690 if paid by check or $715 if paid through PayPal. See MHP Certification Cost 2026: Complete Pricing Breakdown for the full breakdown.

What are the highest-weighted domains on the MHP exam?

Standards and Regulations, Structural Shielding, Radiation Oncology, Diagnostic Imaging, and Nuclear Medicine (molecular imaging) each carry 15%, together making up 75% of the Part II blueprint.

Ready to pass your MHP exam?

Put this into practice with free MHP questions across every exam domain.