How to Choose a Peptide Therapy Physician

Start with the medical board

Before anything else, verify the physician's license. Every US state publishes a searchable medical board database. Search the physician's name, confirm their license is active, check their listed specialty, and confirm there are no disciplinary actions on record. This takes under two minutes and costs nothing.

A physician who is not verifiable via their state medical board is not a physician you should work with, full stop.

Credentials that matter

The most relevant specialties for peptide therapy are internal medicine, endocrinology, functional medicine, and anti-aging or regenerative medicine. Emergency medicine physicians with documented fellowship training in integrative or functional medicine represent a growing cohort in this space and are evaluated under PSI's secondary certification path. Board certification in any of these is a meaningful signal, indicating the physician has passed specialty examinations and maintains continuing education requirements.

NPs and PAs can also be qualified practitioners in states where their scope of practice permits prescribing. Apply the same verification standard: license active, specialty relevant, no disciplinary actions.

Peptide therapy as a primary focus

There is a meaningful difference between a physician whose practice centers on hormone optimization and peptide protocols and a general practitioner who occasionally prescribes BPC-157 on request. Look for physicians whose website, bio, and stated services reflect genuine specialty focus. If peptide therapy is buried in a list of 40 services, that is a signal about depth of expertise.

Questions to ask before your first appointment

• , Which compounding pharmacy do you use, and is it 503A or 503B accredited?
• , What baseline labs do you require before starting any protocol?
• , How do you monitor patients during an active protocol?
• , What is your process if I experience adverse effects?
• , Can you explain the mechanism of the compounds you're recommending?
• , How do you determine dosing, and is it individualized based on labs?

Red flags

• , No baseline labs required before starting
• , Cannot name or verify the compounding pharmacy they use
• , Prescribes without a full consultation and health history
• , Makes guarantees about outcomes
• , Cannot explain mechanism of action for compounds they prescribe
• , No verifiable online presence with physician bio and credentials
• , Disciplinary actions on medical board record

How PSI vets its physician directory

Every physician listed in PSI's directory has been reviewed against a four-point standard:

• , Active medical license verified via state board. No disciplinary actions of any kind. This is verified directly through the state medical board database for each physician's jurisdiction, not through third-party aggregators.
• , Peptide or hormone therapy as a named clinical service. The physician's practice website must explicitly name peptide or hormone therapy as a service. Incidental prescribing does not qualify.
• , Board certification in a relevant specialty. Primary path: board certified in internal medicine, endocrinology, functional medicine, anti-aging medicine, or regenerative medicine. Secondary path: board certified in emergency medicine with documented fellowship or formal certification in integrative medicine, functional medicine, or age management from an accredited institution.
• , Professional website with physician bio, credentials, services, and philosophy. The physician must be individually identifiable, not hidden behind a clinic brand.

Note on patient reviews: PSI does not use review counts or star ratings as a listing criterion. Concierge and direct-pay practices serve patients who do not leave public reviews. Review volume reflects practice model, not physician quality. PSI's verification is credential-based and primary-source verified.

Listings are selected through PSI's independent editorial review process. Always verify a physician's license via your state medical board before making any healthcare decision.