DO vs MD: What USMLE Means for Osteopathic Students in 2026

The question every DO student eventually confronts: do I need to take the USMLE on top of COMLEX?

The short answer in 2026: it depends on your specialty and your target programs, but for a large and growing number of DO students, USMLE Step 2 CK has become a strategic necessity. This guide is specifically about the career strategy question, not the format or content differences between the exams (that comparison lives in our COMLEX vs. USMLE guide).

Here we focus on one question: how does taking (or not taking) USMLE affect your residency match options as an osteopathic student?

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The Landscape Has Changed

Before 2020, the osteopathic and allopathic GME systems ran in parallel. AOA-accredited residencies were largely separate from ACGME residencies, and DO students often matched into one system or the other with minimal crossover pressure.

That changed with the 2020 single GME accreditation system merger. The AOA and ACGME consolidated. Most former AOA-only programs now hold ACGME accreditation. DO students now compete head-to-head with MD students in the same applicant pools for the same program slots.

This is both an opportunity and a challenge. The opportunity: DO students now have access to every ACGME residency position in the country, not just osteopathic-designated ones. The challenge: those MD competitors have USMLE scores. Program directors have years of experience interpreting USMLE scores. When a DO applicant shows up with only COMLEX scores, many programs (especially competitive ones) face a comparison problem.

The merger did not erase the USMLE advantage for DO applicants. If anything, it made the USMLE decision more consequential.

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The Core Question: COMLEX Only, or COMLEX + USMLE?

DO students must take COMLEX. COMLEX Level 1, Level 2-CE, and Level 3 are required for osteopathic licensure in the United States. There is no alternative.

USMLE is optional, but strategically, "optional" is doing a lot of work in that sentence.

The real question is not whether USMLE is required for DO students in the abstract. The real question is: which programs require or expect USMLE scores from DO applicants, and what are the consequences of not having one?

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What Program Director Surveys Actually Show

The NRMP Program Director Survey provides the clearest data on what programs want. The findings are consistent across multiple cycles:

• A significant majority of allopathic ACGME programs, particularly in competitive specialties, either require USMLE scores from DO applicants or strongly prefer them when evaluating applications.
• In the 2022 JGME study, approximately 60% of DO students took at least one USMLE exam, reflecting widespread recognition of its strategic value.
• Programs that do not explicitly require USMLE still use it as a tiebreaker when comparing DO and MD applicants with otherwise similar profiles.
• Academic medical centers and university-affiliated programs are the most likely to filter by USMLE score availability.

The honest truth: COMLEX scores, even excellent ones, are harder for many program directors to contextualize. USMLE provides a common yardstick. Program directors who trained in MD programs, who use USMLE score cutoffs in their screening algorithms, and who receive hundreds of applications per cycle will default to the metric they know.

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When USMLE Is Essentially Mandatory for DO Students

For the following situations, a competitive USMLE Step 2 CK score is not optional in any practical sense:

Competitive ACGME Specialties

These specialties have average matched Step 2 CK scores well above 250. DO applicants without a USMLE score face significant structural disadvantages:

• Dermatology: Consistently the most competitive specialty. Average matched scores cluster above 255. Programs report filtering applicants without USMLE scores.
• Orthopedic Surgery: High USMLE score expectations. DO students who match into competitive ortho programs almost universally have USMLE scores.
• Radiation Oncology. Small field, extremely competitive. Expect USMLE.
• Neurosurgery. One of the lowest match rates. USMLE is expected.
• Plastic Surgery: Independent application cycle, highly competitive applicant pool.
• ENT (Otolaryngology). Small specialty, high USMLE score expectations.
• Urology. Independent match, competitive.

Academic Medical Centers

University-affiliated programs and academic medical centers have long histories of using USMLE as a screening criterion. Even in less competitive specialties, applying to top academic programs as a DO student without USMLE scores is a meaningful disadvantage.

Programs Where the Applicant Pool Is Primarily MD

If a program historically matched 95% MD graduates, they are calibrated to USMLE scores. A DO applicant's COMLEX 650 does not automatically translate in their systems.

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When COMLEX Alone May Be Sufficient

COMLEX without USMLE is a viable path in specific circumstances:

• Primary care at community programs. Family Medicine, Internal Medicine, and Pediatrics at non-academic community hospitals are generally more open to COMLEX-only applicants. These programs have longer histories of training DO students.
• Osteopathic-friendly programs. Programs in states with strong DO traditions (Michigan, Ohio, Pennsylvania, Florida, Texas) actively recruit DO students and are experienced interpreting COMLEX scores.
• Psychiatry at community or regional programs. Less competitive than most specialties; many programs accept COMLEX-only DO applicants.
• Physical Medicine & Rehabilitation. A specialty with historically higher DO representation and COMLEX familiarity.

Even in these situations, a strong USMLE Step 2 CK score would not hurt. It would only open more doors. The question is whether the added cost and exam burden is worth it given your specific target programs.

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The 2026 Strategic Shift: Skip USMLE Step 1, Invest in Step 2 CK

Since USMLE Step 1 became pass/fail in 2022, the strategic calculation for DO students has shifted significantly.

Previously, DO students had to decide whether to take both COMLEX Level 1 and USMLE Step 1, which meant two grueling exams in close succession, one producing a numeric score, one pass/fail. The numeric USMLE Step 1 score was historically a major residency filter.

Now that Step 1 is pass/fail:

• COMLEX Level 1 and USMLE Step 1 are effectively equivalent in informational value from a residency standpoint (both just tell programs you passed)
• The only exam that produces a differentiating numeric score in the Step 1/Level 1 tier is COMLEX Level 1 (200–800 scale), but programs largely do not use COMLEX Level 1 scores as a primary filter
• USMLE Step 2 CK remains a scored exam and is increasingly the primary screening tool for competitive residency programs

The emerging strategy for many DO students in 2026:

1. Take COMLEX Level 1 because it is required for osteopathic licensure; the pass/fail nature makes it a checkbox
2. Skip USMLE Step 1 since it is also pass/fail; taking it adds cost ($695) and exam burden without adding a numeric score
3. Invest heavily in USMLE Step 2 CK: this is the exam where your numeric score will be seen, evaluated, and compared by program directors

This approach saves approximately $695 in fees and significant study time, while concentrating effort on the exam that actually differentiates applicants.

A strong USMLE Step 2 CK score in the 250s or 260s can, in the minds of many program directors, offset concerns about a DO applicant's COMLEX performance or their training background.

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Score Considerations and Rough Comparisons

There is no official COMLEX-to-USMLE conversion formula. The NBOME and NBME have not published one, and they have explicitly stated that direct numeric comparisons are inappropriate.

That said, residency programs informally use percentile-based equivalences:

These are rough percentile-level estimates, not direct score conversions. Programs that use these equivalences know they are approximate. Programs that want a USMLE score want an actual USMLE score, not a converted COMLEX score.

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Practical Decision Framework

Use this decision tree:

Step 1: What specialty are you targeting?

• Competitive specialty (derm, ortho, neuro, rad onc, plastics, ENT, urology) → Take USMLE Step 2 CK. No real debate.
• Internal medicine or pediatrics at academic programs → Strongly consider USMLE Step 2 CK.
• Family medicine or psychiatry at community programs → COMLEX alone may be sufficient. Evaluate your specific programs.

Step 2: What types of programs are you targeting?

• Academic medical centers, university-affiliated → Take USMLE Step 2 CK.
• Community programs with known DO presence → COMLEX alone may be sufficient.
• Mixed → Take USMLE Step 2 CK to keep all options open.

Step 3: What is your financial situation?

• If budget is a concern: skip USMLE Step 1 (pass/fail anyway), take only USMLE Step 2 CK.
• Taking COMLEX Level 1 ($730) + COMLEX Level 2-CE ($810) + USMLE Step 2 CK ($695) = approximately $2,235 in exam fees.
• Adding USMLE Step 1 ($695) brings the total to ~$2,930.

The practical recommendation for most DO students: Take COMLEX Level 1 (required), skip USMLE Step 1, and take USMLE Step 2 CK. Invest your USMLE preparation energy where it produces a scored, differentiated result.

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Study Strategy: One Prep, Two Exams

If you are taking both COMLEX and USMLE, here is the most efficient approach:

Use USMLE-focused resources as your primary study base. First Aid, high-quality QBanks, Sketchy, Pathoma, and Amboss cover approximately 85–90% of COMLEX content. Studying for USMLE essentially IS studying for COMLEX on the clinical science material.

Add 3–5 days of focused OMM review before COMLEX. OMM comprises approximately 10–15% of COMLEX Level exams. Add COMLEX-specific resources (Savarese OMT Review, COMQUEST, your school's OMM notes) during the final stretch before your COMLEX date.

Schedule USMLE first, then COMLEX. USMLE requires deeper multi-step clinical reasoning. Take USMLE while your preparation is at its sharpest, then use the subsequent days for OMM review before COMLEX.

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Cost Reality Check

Exam fees are not trivial. Before making your decision, budget accordingly:

Taking the full COMLEX series: ~$2,450 Taking full COMLEX + full USMLE: ~$4,795

The focused DO strategy (COMLEX Level 1 + Level 2-CE + USMLE Step 2 CK only): ~$2,235

Factor these costs into your planning. A $695 Step 2 CK exam fee is a real cost, but it is small relative to the residency match consequences of being filtered out of competitive programs.

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Frequently Asked Questions

Do DO students need USMLE for internal medicine residency?

It depends on the program. For community-based Internal Medicine programs with a history of training DO students, COMLEX alone may be sufficient. For academic medical centers, university-affiliated programs, and programs affiliated with allopathic medical schools, USMLE Step 2 CK is strongly preferred. If you want the broadest possible Internal Medicine program options, take USMLE Step 2 CK.

Can DO students match into surgery without USMLE?

For general surgery at community programs with DO-friendly histories, it is possible. For competitive surgical specialties (ortho, neurosurgery, plastics, ENT, urology) or academic general surgery programs, USMLE Step 2 CK is effectively required. Very few DO students match into competitive surgical specialties without USMLE scores.

What if I do well on COMLEX but poorly on USMLE?

This is a real risk. COMLEX and USMLE test the same underlying knowledge but with meaningfully different question styles. Strong COMLEX performance does not guarantee equivalent USMLE performance. If you attempt USMLE Step 2 CK and score poorly, the score is reportable and will appear on your ERAS application. For this reason, preparation for USMLE should be thorough and dedicated, not an afterthought. Treat USMLE prep as your primary study objective if you plan to take it.

Can I take USMLE Step 2 CK without taking Step 1?

Yes. USMLE Step 2 CK has no formal prerequisite requiring Step 1 completion first. Many DO students in 2026 are skipping USMLE Step 1 entirely (since it is pass/fail) and going directly to Step 2 CK.

Do all ACGME programs accept COMLEX scores from DO applicants?

Most ACGME programs formally accept COMLEX scores for DO applicants, but acceptance and preference are different things. A program may technically accept COMLEX while also preferring USMLE or using USMLE score thresholds in their initial screening. The only way to know a specific program's actual practice is to research the program directly, ask residents, or consult your school's GME office.

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