On December 30, 2025, the Drug Enforcement Administration (DEA or ( printed page 43113) Government) issued an Order to Show Cause (OSC) to Shane Lydon, M.D., of Belfast, ME (Registrant). Request for Final Agency Action (RFAA), Exhibit (RFAAX) 1, at 1, 3. The OSC proposed the revocation of Registrant's Certificate of Registration No. FL1479220, alleging that Registrant's registration should be revoked because Registrant is “currently without authority to prescribe, administer, dispense, or otherwise handle controlled substances in the State of Maine, the state in which [he is] registered with DEA.” Id. at 2. (citing 21 U.S.C. 824(a)(3)).

The OSC notified Registrant of his right to file a written request for hearing, and that if he failed to file such a request, he would be deemed to have waived his right to a hearing and be in default. Id. (citing 21 CFR 1301.43). Here, Registrant did not request a hearing, and the Agency finds him to be in default. RFAA, at 3.^[1] “A default, unless excused, shall be deemed to constitute a waiver of the registrant's/applicant's right to a hearing and an admission of the factual allegations of the [OSC].” 21 CFR 1301.43(e).

Further, “[i]n the event that a registrant . . . is deemed to be in default . . . DEA may then file a request for final agency action with the Administrator, along with a record to support its request. In such circumstances, the Administrator may enter a default final order pursuant to [21 CFR] 1316.67.” Id. at 1301.43(f)(1). Here, the Government has requested final agency action based on Registrant's default pursuant to 21 CFR 1301.43(c), (f), 1301.46. RFAA, at 1; see also21 CFR 1316.67.

Findings of Fact

The Agency finds that, in light of Registrant's default, the factual allegations in the OSC are deemed admitted. According to the OSC, Registrant's Maine medical license expired by its own terms on June 30, 2025. RFAAX 1, at 1-2. According to Maine online records, of which the Agency takes official notice,^[2] Registrant's state medical license is expired (Status: “Failed to Renew”). State of Maine Regulatory Licensing & Permitting License Search, Search License Information, www.pfr.maine.gov/​ALMSOnline/​ALMSQuery/​Welcome.aspx (last visited date of signature of this Order). Accordingly, the Agency finds that Registrant is not licensed to practice medicine in Maine, the state in which he is registered with DEA.^[3]

Discussion

Pursuant to 21 U.S.C. 824(a)(3), the Attorney General is authorized to suspend or revoke a registration issued under 21 U.S.C. 823 “upon a finding that the registrant . . . has had his State license or registration suspended . . . [or] revoked . . . by competent State authority and is no longer authorized by State law to engage in the . . . dispensing of controlled substances.”

With respect to a practitioner, DEA has also long held that the possession of authority to dispense controlled substances under the laws of the state in which a practitioner engages in professional practice is a fundamental condition for obtaining and maintaining a practitioner's registration. Gonzales v. Oregon, 546 U.S. 243, 270 (2006) (“The Attorney General can register a physician to dispense controlled substances `if the applicant is authorized to dispense . . . controlled substances under the laws of the State in which he practices.' . . . The very definition of a `practitioner' eligible to prescribe includes physicians `licensed, registered, or otherwise permitted, by the United States or the jurisdiction in which he practices' to dispense controlled substances. 802(21).”). The Agency has applied these principles consistently. See, e.g., Lawrence Rudolph, D.M.D.,89 FR 79310 (2024); Henry-Norbert O. Ndekwe, M.D.,90 FR 15990 (2025); Benson Sergiles, P.A.,90 FR 32016 (2025).^[4]

According to Maine statute, “a “prescription drug order” means “a lawful written or oral order of a practitioner for a drug or device. Written orders may be issued on a prescription form or by electronic transmission.” Me. Rev. Stat. tit. 32 § 13702-A(31) (2025). Further, “practitioner” means “an individual who is licensed, registered or otherwise authorized in the appropriate jurisdiction to prescribe and administer drugs in the course of professional practice.” Id. § 13702-A(29). Additionally, a “prescriber” means “a licensed health care professional or veterinarian with prescriptive authority, including a licensed health care professional or veterinarian who uses telehealth in providing health care to prescribe controlled substances to patients located in th[e] State.” Me. Rev. Stat. tit. 22 § 7246(5). “Dispense” means “the preparation and delivery of a prescription drug in a suitable container appropriately labeled for subsequent administration to or use by a patient or other individual entitled to receive the prescription drug pursuant to a lawful order of a practitioner.” Me. Rev. Stat. tit. 32, § 13702-A(9).

Here, the undisputed evidence in the record is that Registrant lacks authority to practice medicine in Maine because his Maine medical license expired. As discussed above, an individual must be a licensed practitioner to dispense or prescribe a controlled substance in ( printed page 43114) Maine. Thus, because Registrant currently lacks authority to practice medicine in Maine and, therefore, is not currently authorized to handle controlled substances in Maine, Registrant is not eligible to maintain a DEA registration. Accordingly, the Agency will order that Registrant's DEA registration be revoked.

Order

Pursuant to 28 CFR 0.100(b) and the authority vested in me by 21 U.S.C. 824(a), I hereby revoke DEA Certificate of Registration No. FL1479220 issued to Shane Lydon, M.D. Further, pursuant to 28 CFR 0.100(b) and the authority vested in me by 21 U.S.C. 823(g)(1), I hereby deny any pending applications of Shane Lydon, M.D., to renew or modify this registration, as well as any other pending application of Shane Lydon, M.D., for additional registration in Maine. This Order is effective August 13, 2026.

Signing Authority

This document of the Drug Enforcement Administration was signed on July 7, 2026, by Administrator Terrance Cole. That document with the original signature and date is maintained by DEA. For administrative purposes only, and in compliance with requirements of the Office of the Federal Register, the undersigned DEA Federal Register Liaison Officer has been authorized to sign and submit the document in electronic format for publication, as an official document of DEA. This administrative process in no way alters the legal effect of this document upon publication in the Federal Register .