Can a physician assistant inject or prescribe in California?
Oversight · part of The Practice Perimeter
The Physician Assistant Board’s February 2026 statutory compilation states that a physician and surgeon shall not supervise more than eight physician assistants at any one time, except as provided in the emergency provision of BPC §3502.5. The compilation records the §3516 amendment by AB 1501 as effective January 1, 2026. Section 3516 also preserves disciplinary restrictions on employment or supervision and permits Medical Board restrictions on supervising particular types of physician assistants, including outside the physician’s specialty.
Cal. Bus. & Prof. Code §3516(a)–(c), §3502.5 — Physician Assistant Board, Laws & Regulations (February 2026) · February 2026 compilation; source text checked Oct 3, 2026; currentness and applicability not independently confirmed · regulatory monitoring, not legal advice
Related California rules
A physician may delegate injectable and laser procedures only to appropriately licensed personnel — registered nurses, nurse practitioners, or physician assistants — under genuine supervision. Unlicensed staff (including medical assistants) and improperly licensed staff (estheticians, cosmetologists, LVNs) may not perform them, regardless of training. A “paper” medical-director arrangement is aiding and abetting the unlicensed practice of medicine.
Cal. Bus. & Prof. Code §2052; Medical Board of California — Medical Spas guidance · verified Jul 26, 2026
Lasers and other prescriptive devices and prescriptive drugs must only be utilized by licensed registered nurses, nurse practitioners, or physician assistants; no unlicensed staff, including medical assistants, may use these devices or drugs, regardless of the level of training or supervision, and delegation to improperly licensed personnel, such as estheticians, is prohibited.
Medical Board of California — Medical Spas guidance (Delegation to unlicensed staff) · verified Sep 8, 2026
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Related California questions
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- Can a nurse practitioner treat without a supervising physician in California?
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