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GLP-1 clinic in Pasadena · Telehealth available

Lean Lab

238 S Arroyo Pkwy, Pasadena, CA 91105

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Medications offered
Tirzepatide, Semaglutide
Clinical care
Physician-led
Care model
In-person + telehealth
Listing checked
July 2026
Program pricing
$200–$3899/month

What this provider offers

GLP-1 weight-loss care in Pasadena

Lean Lab is a medical weight-loss clinic in Pasadena, CA. The clinic lists Tirzepatide and Semaglutide among its GLP-1 services.

Lean Lab at a glance

  • Lean Lab is at 238 S Arroyo Pkwy in Pasadena, CA.
  • Shant Tomassian, MD is named as a prescriber, and that clinician has been matched to a state licensing registry.
  • The site names Semaglutide and Tirzepatide. Naming a medication is not the same as having it in stock on the day you call.
  • Visits happen at the Pasadena location, and the site says some can be done by video.
  • Program pricing is published at $200–$3899/month. Confirm whether that covers the medication or only the visits.

Listing details last checked July 2026 against the clinic's own site. How we verify.

Lean Lab is one of 5 GLP-1 clinics listed in Pasadena. It is also the only listing in Pasadena describing video visits.

TirzepatideSemaglutide

Cost breakdown

Program pricing

GLP-1 weight-loss program

$599/month

GLP-1 weight-loss program

$699/month

GLP-1 weight-loss program

$799/month

GLP-1 weight-loss program

$1,897/month

Medication pricing

Tirzepatide
$599/month
Tirzepatide
$799/month
Tirzepatide
$3,899/month
Tirzepatide
$595/week

Care team

Clinicians at Lean Lab

Bianca Tomassian, PA-C

Co-Founder, PA-C

Shant Tomassian, MD

Medical director

Active credential verified

Credential check

How Lean Lab was verified

One clinician at this location was matched to an active license on a state registry. Last checked July 24, 2026.

  • Shant Tomassian

    Active license
    License number
    A179858

Checked against search.dca.ca.gov. A license confirms the clinician may practice in California; it is not an endorsement of this clinic or its prices.

Provider details

Clinic address
238 S Arroyo Pkwy, Pasadena, CA 91105
Care model
In-person + telehealth
Phone
(626) 901-5326
Telehealth
Yes
Insurance accepted
No

Patient experience

Reviews of Lean Lab

Editorial scores and paid placement do not affect these reviews.

What to ask Lean Lab

Drawn from what this listing does and does not tell you, so the first call settles the total cost and who provides the care.

  • Will Bianca Tomassian, PA-C be the clinician who evaluates and prescribes, or someone else on the team?
  • Does the published price cover the medication itself, or only the visits?
  • Is any of this billed to insurance, and if not, what does the cash price include — labs, follow-up visits, and dose changes?
  • Tirzepatide and Semaglutide are both offered. Which would you start with, and what decides between them?
  • Which visits have to happen in Pasadena, and which can be done by video?
  • Which pharmacy supplies the medication, and is it dispensed in the clinic?

Common questions

Questions about Lean Lab

Which GLP-1 medications does Lean Lab prescribe?

Lean Lab names Semaglutide and Tirzepatide on its own site. That is what the clinic advertises, not a guarantee of supply, and which medication you start on is decided at the evaluation.

Does Lean Lab offer telehealth, or do visits have to be in person?

Lean Lab sees patients at its Pasadena location and its site describes video visits as well. Ask which appointments have to happen in person, since the first evaluation often does.

Who writes the prescription at Lean Lab?

Shant Tomassian, MD is named as a prescriber, and that clinician has been matched to a state licensing registry.

What does Lean Lab charge for GLP-1 weight-loss treatment?

Lean Lab publishes $200–$3899/month. Confirm what that includes: whether the medication is in the figure, whether bloodwork is extra, and what the price becomes once the dose climbs.

Where is Lean Lab located?

238 S Arroyo Pkwy, Pasadena, CA 91105. It is one of 5 GLP-1 clinics listed in Pasadena.

Nearby

Other GLP-1 clinics in Pasadena

Worth comparing before booking, since what a program includes and what it charges after the first month differ more between clinics than the medication does.

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By medication

California clinics by medication

Worth reading before you call

Chosen from what this listing names: its medications, how it sees patients, and what it publishes about price.

Medication sources