HealingMaps Take: Dr. Larry Thiesen’s boutique functional medicine practice in the heart of Wellesley draws patients from Needham, Natick, and Newton — BPC-157, Semaglutide, Epitalon, and NAD+ protocols in a highly personalized concierge-style setting. Dr. Larry Thiesen leads the clinical team and protocols are tailored to each patient’s goals after consultation.
Thiesen MD offers 4 specific peptide compounds (BPC-157, Semaglutide, Epitalon, and NAD+), placing it in the top half of the 10+ Massachusetts peptide clinics in our directory (the median clinic menu offers 4 compounds; the deepest offers 9). The clinic is physician-led (MD or DO); about half of Massachusetts peptide clinics in our directory are.
✓ Last verified: April 5, 2026 — Edited & verified by Angelica Bottaro for HealingMaps Editorial Staff
| Location | Wellesley, Massachusetts |
| Address | 277 Linden Street, Second Floor, Wellesley, MA 02482 |
| Phone | (401) 307-2240 |
| Website | thiesenmd.com |
| Treatments | BPC-157, Semaglutide, Epitalon, NAD+ |
| Conditions Treated | Tissue repair, weight management, metabolic decline, energy depletion, anti-aging |
| Administration | Subcutaneous injection, IV infusion |
| Cost | N/A |
| Insurance | N/A |
| Clinical Lead | Dr. Larry Thiesen — M.D., Functional Medicine |
Your prescribing provider, Dr. Larry Thiesen, is verified in the federal CMS National Plan & Provider Enumeration System (NPPES) under NPI 1073513438, with a primary specialty of Anesthesiology and a primary practice address in Fall River, MA. CMS records show this NPI has been active since 2005. NPPES record verified 2026-06-06. Dr. Larry Thiesen’s NPI tenure is longer-tenured than nearly all of the 8 Massachusetts peptide providers we’ve verified in NPPES (longest-tenured peer registered in 2005; cohort median 2008).
What this means for you: In the US, any actively state-licensed physician can legally prescribe compounded peptides — board certification in a specific specialty isn’t required for peptide prescriptions. Anesthesiology training emphasizes pharmacology and dosing precision — directly relevant to compounded-peptide protocols, which require careful titration.
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Most Thiesen MD patients report the consult-to-first-injection window runs 1–3 weeks depending on lab turnaround and pharmacy fulfillment.
The questions below are pulled from the gaps in this specific listing — areas the clinic doesn’t publicly answer that you should clarify before booking. Each one is designed to get you a useful answer in 30 seconds or less.
Thiesen MD operates in Wellesley, Massachusetts and offers peptide therapy. The clinic’s peptide menu includes bpc-157, semaglutide, epitalon and related compounds, administered via subcutaneous injection, iv infusion.
For a closer look at how these compounds work, read our deep dives on BPC-157, the body protection compound for tissue recovery and Epitalon and its pineal gland, sleep, and longevity research.
Patients appreciate Dr. Thiesen’s concierge approach, unhurried consultations, and the ability to discuss cutting-edge longevity peptides alongside weight management options
Boutique practice size means limited appointment availability — not suited for patients needing same-week access; menu is focused rather than comprehensive
Contact Thiesen MD to inquire about new patient availability. The practice prioritizes patients committed to a comprehensive functional medicine approach to longevity and metabolic health.
Explore more what peptides are and why everyone in wellness is talking about them.
Based on this listing, Thiesen MD names 4 specific peptide compounds: BPC-157, Semaglutide, Epitalon, and NAD+. The clinic may offer additional compounds not published on its public listing — confirm the full menu on a consult call.
Yes. Dr. Larry Thiesen is registered in the federal CMS National Plan & Provider Enumeration System (NPPES) under NPI 1073513438, with a primary specialty of Anesthesiology and a primary practice address in Fall River, MA. The NPI has been active since 2005.
Thiesen MD doesn’t mention telehealth or virtual visits on its listing. Most peptide clinics require in-person evaluation for the initial consult; some offer virtual follow-ups once a patient is stable. If geography or travel matters to you, ask on the consult call whether they can prescribe and follow up virtually — and which states they’re licensed to do so in.
Among verified Massachusetts peptide clinics in the HealingMaps directory, Thiesen MD ranks in the bottom half of Massachusetts peptide clinics in the directory by compound depth. Compound depth is one signal among several — provider credentials, pharmacy sourcing transparency, and lab requirements also matter when comparing.
Thiesen MD is located in Wellesley, Massachusetts. The full street address, phone number, and hours are listed in the data card above.
Themes drawn from HealingMaps editorial analysis of verified Massachusetts peptide clinics in our directory. Refreshed quarterly; percentages rounded to nearest 5%.
Across Massachusetts peptide clinics in our directory, Semaglutide appears in 100% of listings; Tirzepatide in 95%; Sermorelin in 45%; BPC-157 in 40%. Compounds appearing in fewer than 20% of Massachusetts listings — including Epitalon, PT-141, Pentadeca — are less commonly disclosed; patients seeking those should specifically ask whether the clinic prescribes them.
5% of Massachusetts clinics in our directory openly state whether they use a 503A or 503B compounding pharmacy. The rest leave the class unstated. The distinction matters for patients — 503A pharmacies fill prescriptions individually after your provider writes them (typically a few-day wait, in-state shipping), while 503B outsourcing facilities pre-batch under direct FDA inspection (often supporting same-visit fulfillment and direct-to-home shipping). Worth asking specifically before you book.
45% of verified Massachusetts clinics name an MD or DO as clinical lead (this listing’s clinical lead is Anesthesiology-trained). The remainder are NP/PA-led or don’t publicly name a specific prescribing clinician. Any state-licensed physician, NP, or PA can legitimately prescribe compounded peptides — but knowing your prescriber’s training and tenure helps you assess fit for your specific protocol.
The median Massachusetts clinic in our directory publishes 4 specific peptide compounds on its listing. The deepest disclosed menu names 9; every clinic names at least one compound. A wide menu means more options at one clinic; a narrow menu can reflect specialization (e.g. weight-loss-only programs) or limited public disclosure (the clinic prescribes more than it advertises).
Pharmacy sourcing: This clinic doesn’t state its 503A or 503B compounding pharmacy partner. The class affects how your prescription is fulfilled — custom-compounded with in-state shipping (503A) versus pre-batched with broader shipping including direct-to-home delivery (503B) — so it’s worth asking before starting any compounded protocol.
Verified prescriber on the public record at Thiesen MD — NPI lookup confirms in CMS NPPES. The clinic’s menu publishes 4 compounds (BPC-157, Semaglutide, and Epitalon lead the list). The one piece missing publicly is pharmacy class disclosure (503A vs 503B); ask the clinic directly. See our full vetting rubric →
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