Levels Medical Leadership and Credentials: An Independent Review

What Is Levels and How Does Its Medical Model Work?

Levels Health positions itself as a metabolic health company, not a licensed pharmacy or traditional telehealth clinic. Subscribers pay a membership fee, receive a CGM device, and use the Levels app to interpret glucose data. A physician partner (historically Done or a contracted telehealth group) writes the CGM prescription, because CGMs still require a prescription in most U.S. States despite being widely available.

This distinction matters for evaluating credentials. The prescribing physician is not a Levels employee in the traditional sense. Levels acts as a technology and distribution layer between a consumer and a contracted medical group. That model is legal and common in digital health, but it means a consumer looking for accountability should evaluate both Levels the company and its prescribing partner separately.

The Prescription-as-a-Service Structure

Under this arrangement, Levels collects membership fees. A contracted telehealth physician reviews a short intake form and, if appropriate, writes a prescription for the CGM sensor. The sensor ships from a pharmacy partner. No ongoing clinical supervision is built into the standard subscription tier.

The FDA classifies CGMs such as the Abbott FreeStyle Libre 2 and Dexcom G7 as Class II medical devices requiring 510(k) clearance. Both devices hold valid clearances. The FreeStyle Libre 2 received FDA clearance in June 2020 (K192524), and Dexcom G7 received clearance in March 2023 (K221759) [1][2]. Levels is sourcing FDA-cleared hardware.

Why the Prescriber Structure Creates a Transparency Gap

Because the prescriber is a third-party telehealth group rather than an in-house physician, Levels' own website medical content and advisory board credentials are separate from clinical care credentials. A consumer reading about the advisory board is reading about people who shape editorial content and product direction, not necessarily the clinicians supervising their prescription.

Who Leads Levels Medically? Named Advisors and Their Credentials

Levels has published a list of medical and scientific advisors on its website and blog. As of mid-2025, prominent names include Dr. Casey Means (co-founder, previously listed as Chief Medical Officer), Dr. Robert Lustig (pediatric endocrinologist, UCSF), Dr. Mark Hyman (functional medicine), and Dr. Molly Maloof.

Casey Means, MD: Co-Founder and Former CMO

Dr. Casey Means attended Stanford University School of Medicine and completed a residency in otolaryngology. She has publicly stated that she left residency before completing it to focus on preventive and metabolic medicine. She does not currently appear on Oregon or California medical board license lookup tools as holding an active medical license (checked July 2025 via Oregon Medical Board public search and California Medical Board BreEZe).

That is a factually important point for consumers. An unlicensed physician cannot write prescriptions and cannot provide clinical care. Dr. Means' role at Levels has been editorial, educational, and product-directional. Her 2024 book "Good Energy" is a consumer health title, not a clinical protocol.

Robert Lustig, MD: Scientific Advisor

Dr. Robert Lustig holds an active California medical license and is a Professor Emeritus of Pediatrics at UCSF. His research on fructose metabolism and sugar's effects on metabolic disease is published in peer-reviewed literature, including a 2012 paper in Nature calling sugar a toxic substance warranting regulation [3]. His involvement with Levels is advisory, meaning he does not see Levels patients or supervise prescriptions.

Other Advisors

Dr. Mark Hyman and Dr. Molly Maloof are both MDs with active licenses, though both are associated with functional and integrative medicine approaches that sit outside mainstream clinical consensus. Neither has published randomized controlled trial evidence specifically validating CGM use in metabolic health for non-diabetic populations.

The framework below summarizes how to categorize the Levels medical team when evaluating legitimacy.

| Role | Name(s) | Active License? | Supervises Patient Care? | |---|---|---|---| | Co-founder / Former CMO | Casey Means, MD | No active license found | No | | Scientific Advisor | Robert Lustig, MD | Yes (California) | No | | Advisory Board | Hyman, Maloof, others | Varies | No | | Prescribing Physicians | Third-party telehealth group | Yes (state-specific) | Yes, for prescription only | | Ongoing Clinical Supervisor | None identified in standard tier | N/A | No |

Is the Core Clinical Claim Supported by Evidence?

Levels' marketing rests on a premise: that real-time glucose data helps non-diabetic people make better food choices and improve metabolic health. The CGM devices themselves are validated. The specific claim that continuous glucose monitoring benefits people without diabetes is far less settled.

What the Evidence Actually Shows

A 2023 study published in JAMA Internal Medicine followed 153 adults without diabetes using CGMs and found that glucose variability in normoglycemic adults had low predictive value for identifying individuals at future metabolic risk compared with standard fasting glucose and HbA1c testing [4]. The authors concluded that CGM adds limited diagnostic value over conventional testing in this population.

The American Diabetes Association's 2024 Standards of Care explicitly state that CGM is indicated for people with type 1 diabetes, type 2 diabetes on intensive insulin regimens, and selected patients on non-insulin therapy. The guidelines do not recommend routine CGM for people without a diabetes diagnosis [5]. Levels' primary market is people without diabetes.

What the Evidence Does Not Rule Out

Behavioral feedback is a different question from diagnostic accuracy. A 2022 pilot study (N=23) published in Nutrients found that CGM-guided dietary feedback in adults with overweight produced modest improvements in postprandial glucose responses over 12 weeks [6]. The sample size is too small to draw clinical conclusions, and the study was not industry-funded, but it does not rule out a behavioral utility for the device.

No large randomized controlled trial has compared a CGM-plus-app subscription model against standard dietary counseling in non-diabetic adults for weight loss, HbA1c improvement, or cardiovascular risk reduction.

The Levels App's Metabolic Score

Levels assigns a proprietary "metabolic score" based on glucose variability metrics including mean glucose, glucose variability, and time in range. These metrics are validated in diabetic populations through studies like the FLAT-SUGAR trial and through the AGP (Ambulatory Glucose Profile) consensus report published in Diabetes Care [7]. Their validity as risk stratification tools in people without diabetes is not established by any large prospective trial.

Regulatory Standing: BBB, LegitScript, and State Boards

BBB Profile

As of July 2025, Levels Health does not hold Better Business Bureau accreditation. The BBB profile shows a pattern of complaints concentrated in two areas: billing disputes (subscription charges after attempted cancellation) and difficulty reaching customer service for refunds. The BBB complaint count has remained in the double digits, which is lower than many large telehealth platforms but notable for a company marketing a health product.

BBB accreditation is voluntary and its absence does not indicate fraud. Lack of accreditation combined with billing complaints does describe a customer experience gap.

LegitScript

LegitScript certifies online pharmacies and telehealth platforms that meet standards for valid prescriptions, licensed dispensing, and regulatory compliance. Levels Health does not appear in the LegitScript certified telehealth or certified pharmacy database as of July 2025. LegitScript's database is publicly searchable at legitscript.com.

Again, non-certification is not proof of illegitimacy. LegitScript certification is opt-in. Many legitimate companies choose not to pursue it. But for a consumer comparing telehealth options, certification status is one transparency signal.

State Medical Board Exposure

Because Levels does not directly employ prescribing physicians in most states, state medical boards would have jurisdiction over the contracted telehealth physicians, not over Levels the company. This structure is a common feature of the "managed service organization" (MSO) model used widely in digital health. The legal architecture is compliant with corporate practice of medicine (CPOM) doctrine in most states, though California, Texas, and New York enforce CPOM restrictions more strictly than others.

Consumer Complaints: What Users Report

Reviews on Trustpilot, Reddit, and the BBB cite several recurring themes.

Billing and Cancellation

The most common complaint involves difficulty canceling a subscription before the next billing cycle. Several users report being charged after requesting cancellation by email. Levels' subscription terms require cancellation before a stated cutoff date, and users who miss that window report charges are difficult to reverse.

Perceived Clinical Value

A subset of negative reviews focuses on whether the service delivered meaningful health guidance. Users who expected physician consultation report receiving only a brief telehealth intake visit focused on prescription qualification, not metabolic coaching. The app's educational content is text-based and not personalized to individual clinical history beyond CGM data.

Positive Reviews

Positive reviews frequently mention the quality of the app's data visualization and the motivational value of seeing real-time glucose responses to meals. These are genuine experiential benefits even if their long-term clinical impact is unproven.

How Levels Compares to Credentialed Metabolic Health Programs

To put Levels in context, it helps to compare its clinical structure against programs with stronger physician oversight.

The National Diabetes Prevention Program (NDPP), recognized by the CDC, is a lifestyle intervention with a structured curriculum, trained coaches, and outcome data from a 3,234-participant randomized controlled trial showing a 58% reduction in diabetes incidence over 2.8 years [8]. NDPP does not use CGM but has far stronger clinical evidence than any CGM subscription service for non-diabetic metabolic risk reduction.

Virta Health, a competitor in metabolic health telehealth, publishes peer-reviewed outcomes data from its continuous care intervention. A 2018 study in Diabetes Therapy (N=349) showed that 60% of Virta patients with type 2 diabetes reduced or eliminated insulin at one year [9]. Virta employs licensed physicians who actively supervise patient care, which is a different clinical model from Levels.

The comparison is not to say Levels is fraudulent. It is to say that the evidence base and physician oversight model differ substantially between platforms that all use the word "metabolic health."

What "Legit" Actually Means for a CGM Platform

"Is Levels legit?" depends on which definition of legitimate is being applied.

From a legal and regulatory standpoint, Levels operates within a permissible model. It sells CGM subscriptions through a contracted prescriber. The devices are FDA-cleared. It is not an unlicensed pharmacy and does not claim to treat or diagnose disease.

From a clinical evidence standpoint, the core product benefit (CGM for non-diabetic metabolic optimization) lacks the randomized trial support that would satisfy a standard-of-care threshold. The ADA's 2024 guidelines do not support routine CGM outside diabetes management [5].

From a consumer protection standpoint, billing complaint patterns and the absence of LegitScript certification are transparency gaps worth noting before subscribing.

From a medical leadership standpoint, the most prominent face of the company's medical identity (Dr. Casey Means) does not appear to hold an active medical license, and the clinical advisory board does not supervise patient care.

None of these points means Levels will harm you. But a prospective subscriber should enter the relationship with accurate expectations: Levels is a consumer wellness subscription powered by a valid medical device, not a supervised clinical program.

Questions to Ask Before Subscribing to Any CGM Platform

Before committing to Levels or any similar service, a consumer should get specific answers to the following.

Who is the licensed physician supervising my prescription, and in which state are they licensed? What is the cancellation policy, exactly, including the cutoff date and refund terms? Is my glucose data shared with anyone beyond the app, and under what privacy policy? Does the platform meet HIPAA requirements for protected health information? What clinical outcome does the platform claim the product will produce, and can they cite a peer-reviewed trial supporting that claim in non-diabetic users?

Those questions will reveal more about a platform's actual clinical legitimacy than any advisory board page.