The care team

Your physician, by name.

Each member is matched with one named physician who knows their history, answers messages between visits, and sees them the same week they ask.

Your care team

Dr. Helena Voss, MD

Your physician since March. Menopause and hormone care.

Next visitThursday, 10:30 a.m.
Message replyWithin the business day
Your teamVoss, Arceneaux, Petrakis
Same-week visits Your own physician Labs at home

The physicians

Three clinicians. One continuous relationship.

Every member has a primary physician. The clinicians below work from the same record on every plan, so your care stays connected as your needs change.

Dr. Helena Voss, MD

MD · Menopause and hormone care

Trained in internal medicine, then advanced menopause training. NAMS-trained, with a practice focused on perimenopause and midlife hormone health.

“Symptoms deserve a full history before they deserve a prescription.”
Menopause Perimenopause Hormone therapy Bone and heart health
Request an introduction ↗

Dr. Camille Arceneaux, MD

MD · Internal medicine and longevity

Internal medicine training, followed by a fellowship in preventive and metabolic medicine. Leads lab interpretation and long-range planning for members.

“Most of good medicine is listening. The rest is patient follow-through.”
Longevity Preventive labs Metabolic health Weight care
Request an introduction ↗

Joanna Petrakis, NP

NP · Metabolic health and weight care

Nurse practitioner with clinical training in endocrine and weight management. Builds weight care plans alongside Dr. Arceneaux and runs peptide consultations where appropriate.

“A plan you can keep for a year beats a perfect plan you drop in March.”
Weight care Metabolic health Nutrition planning Peptide consultation
Request an introduction ↗

The concierge model

What membership includes, next to typical telehealth.

Membership is a physician relationship with the access built around it. The comparison below is a plain account of what changes.

Ondine membership compared with typical telehealth
Ondine membershipTypical telehealth
PhysicianOne named physician for your whole plan, with a second clinician on your team when you need one. PhysicianWhichever clinician is available for that visit.
AccessSame-week visits, booked directly with your physician’s office. AccessVisits booked through a general queue, often days or weeks out.
Between visitsDirect messages with your care team, answered within the business day. Between visitsMessages routed to a shared inbox, or no channel at all.
LabsLabs at home, with results reviewed by your physician and discussed on a call. LabsLab orders sent out, with results read by whoever is on shift.
Weight careMedical weight care through the Weight Care program. Eligibility is decided by a licensed clinician. Weight careA single intake, then automated check-ins.
PeptidesClinician-guided peptide consultations, where appropriate. Evidence still emerging. PeptidesRarely part of the same care plan.
PriceMembership $189/mo. Membership + Weight Care $389/mo. Concierge $590/mo. PricePer-visit fees, with lab and medication costs billed separately.

Where we practice

Licensed physicians, state by state.

Members can book with a physician licensed in their state. The counts below show current physician coverage.

  • California2 physicians
  • New York1 physician
  • Florida2 physicians
  • Texas2 physicians
  • Illinois1 physician
  • Massachusetts1 physician
  • Colorado2 physicians
  • Washington1 physician
  • Georgia1 physician
  • Arizona2 physicians
  • North Carolina1 physician
  • Virginia1 physician

Licensing is state by state. A licensed clinician decides eligibility for every program, in every state.

Testimonials

In members’ words.

“Dr. Voss went through my history before she mentioned a single prescription. I left the first visit with a plan and a name to call.”

Margaret T., 53Denver, Colorado

Individual results vary.

“The same-week visit happened, and Dr. Arceneaux remembered what I had written in my message the week before.”

Ilse R., 49Chicago, Illinois

Individual results vary.

“Joanna built a plan simple enough that I actually follow it. We adjust it together every few weeks.”

Renée K., 56Phoenix, Arizona

Individual results vary.

Meet your physician this week.

Start the assessment. We will match you with a named physician and offer a same-week visit when one is open.

Important Safety Information

BOXED WARNING: RISK OF THYROID C-CELL TUMORS. In rodent studies, GLP-1 receptor agonist medicines caused thyroid C-cell tumors. It is not known whether they cause thyroid C-cell tumors, including medullary thyroid carcinoma (MTC), in people. Do not use if you or a family member has had MTC, or if you have Multiple Endocrine Neoplasia syndrome type 2 (MEN 2).

Common side effects include nausea, vomiting, diarrhea, constipation and stomach pain. Serious side effects can include pancreatitis, gallbladder problems, low blood sugar, and kidney problems. Tell your clinician about any symptoms you notice.

Weight care medicines are not for use during pregnancy. Eligibility is always decided by a licensed clinician. Results vary from person to person.