Your care team

Care from the best in medicine.

Every OPTML prescription is written by a U.S.-licensed clinician. This is the network behind your protocol, and how to verify it.

The network behind your protocol

A licensed prescribing network, not a single doctor on call.

27Prescribing clinicians
51States and territories
239Active state licenses
MD · DO · NPPhysicians and nurse practitioners

Individual clinicians are assigned by state and availability, so the roster changes. What does not change is the standard: every OPTML prescription is written by a U.S.-licensed clinician who has reviewed your intake and, where your protocol calls for it, your bloodwork.

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Dr. Takashi Nakamura, MD, FACEP

Chief Medical Officer

Emergency Medicine Digital Health

Dr. Takashi Nakamura, MD

Board-certified emergency medicine physician with 11+ years of clinical practice. Digital health executive overseeing medical operations and prescribing protocols.

Dr. Laurie J. Mercier, MD

Medical Director

Family Medicine Primary Care

Dr. Laurie J. Mercier, MD

Board-certified family physician with 30+ years of clinical experience. Leads patient-centered clinical strategy and primary care operations.

Dr. Stephen MacDade, MD

Emergency Medicine Physician

Telehealth Men’s Health

Dr. Stephen MacDade, MD

Board-certified emergency medicine physician with 10+ years of clinical experience. Telehealth, acute care, and men’s health.

Dr. Scott Sanderson, MD

Emergency Medicine Physician

Military Medicine Aesthetic & Regenerative Care

Dr. Scott Sanderson, MD

Board-certified emergency medicine physician with a background in military medicine. Aesthetic and regenerative care.

Kimberli Hastings, MSN, RN, NP

Family Nurse Practitioner

Family Medicine Mental Health

Kimberli Hastings, MSN, RN, NP

Family Nurse Practitioner specializing in family medicine and mental health. Clinical experience since 2019.

What kind of clinicians

The questions people actually ask.

Before you hand your labs to anyone, it is fair to want to know how they were trained and how they practice.

Conventionally trained

The network is made up of medical doctors, doctors of osteopathic medicine and licensed nurse practitioners. This is conventional, evidence-based medicine. OPTML does not offer naturopathic or homeopathic prescribing.

Board-certified leadership

Medical operations are led by board-certified physicians in emergency medicine and family medicine, with a family nurse practitioner on the clinical leadership team. Their certifications and backgrounds are listed below.

Licensed where you live

Your clinician holds an active license in your own state. That is a legal requirement for prescribing, not a preference, and it is why the network spans 51 states and territories rather than operating from one.

Ongoing, not one-and-done

A protocol is reviewed as you go rather than issued once and forgotten. If something in your labs or your response changes, a licensed clinician decides what happens next. No dose on a webpage can do that.

Provider licensure

Licensed in every state we serve.

Every clinician prescribing on the OPTML platform holds an active license in the state they treat. Massachusetts, Rhode Island and Vermont require telemedicine providers to publish prescriber names and license numbers, so those are shown in full. Elsewhere we publish the number of licensed clinicians, because assignment changes with state and availability.

27 clinicians · 51 states and territories · 239 active licenses

Published by state requirement

MassachusettsDisclosure required4
  • Kimberli HastingNPRN2379884
  • Theresa VergaraMDRN2381153
  • Laurie MercierMD10233001
  • Daniel FunschMD1017082
Rhode IslandDisclosure required3
  • Kimberli HastingNP3470
  • Theresa VergaraMDAPRN03619
  • Edilberto AtienzaMDMD17115
VermontDisclosure required3
  • Kimberli HastingNP101.0135472
  • Laurie MercierMD42.0017422
  • Theresa VergaraMD101.0136313
Alabama3 clinicians
Alaska4 clinicians
Arizona7 clinicians
Arkansas5 clinicians
California6 clinicians
Colorado6 clinicians
Connecticut3 clinicians
Delaware4 clinicians
District of Columbia7 clinicians
Florida8 clinicians
Georgia4 clinicians
Hawaii4 clinicians
Idaho4 clinicians
Illinois8 clinicians
Indiana5 clinicians
Iowa4 clinicians
Kansas5 clinicians
Kentucky4 clinicians
Louisiana4 clinicians
Maine4 clinicians
Maryland4 clinicians
Michigan7 clinicians
Minnesota3 clinicians
Mississippi3 clinicians
Missouri4 clinicians
Montana6 clinicians
Nebraska4 clinicians
Nevada3 clinicians
New Hampshire4 clinicians
New Jersey4 clinicians
New Mexico3 clinicians
New York8 clinicians
North Carolina3 clinicians
North Dakota4 clinicians
Ohio6 clinicians
Oklahoma3 clinicians
Oregon4 clinicians
Pennsylvania6 clinicians
South Carolina7 clinicians
South Dakota3 clinicians
Tennessee8 clinicians
Texas7 clinicians
Utah6 clinicians
Virginia6 clinicians
Washington3 clinicians
West Virginia3 clinicians
Wisconsin5 clinicians
Wyoming3 clinicians

License numbers are published where state telemedicine rules require public disclosure. Verification of any clinician is available on request through the relevant state board.

Prescribing services on the OPTML platform are provided through a U.S. physician-led telehealth network (our U.S.-licensed physician network). Licensure is published by state above. Prescriber names and license numbers are shown in full for the states that require public disclosure, and clinician counts elsewhere. Licensure information is provided by our prescribing partner and is current as of the date displayed; we update this roster on at least a quarterly basis or sooner if a license status changes.

How every claim on this site is reviewed: our medical review process.

Weight-loss medication disclaimer

OPTML offers compounded semaglutide and tirzepatide, prescribed and overseen by U.S.-licensed physicians. Compounded drug products are not approved or evaluated for safety, effectiveness, or quality by the FDA. OPTML is not associated with, endorsed by, or affiliated with the manufacturers of FDA-approved branded weight-loss medications, and does not sell or supply those branded products. Anyone interested in an FDA-approved branded medication should consult a licensed healthcare provider or pharmacist. Individual results vary; no specific result is promised, and weight management requires ongoing medical guidance.

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