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HealingMaps Take: Dr. Pencek holds dual credentials as both a chiropractor and nurse practitioner. The 9 peptide treatment categories (nerve pain, libido, cosmetic, GH, sleep, tissue repair, longevity, immune, weight loss) are the broadest organized menu in Oak Brook. Exosome therapy and neural therapy complement the peptide program.
NutrIV Therapies doesn’t list specific peptide compounds on its listing — over half of the 7 Illinois peptide clinics in our directory share that pattern, while the deepest menu in Illinois we’ve reviewed offers 9 compounds. The named clinical lead is a Nurse Practitioner or Physician Assistant rather than an MD/DO.
✓ Last verified: April 24, 2026 — Edited & verified by Angelica Bottaro for HealingMaps Editorial Staff
| Review Scores | Mixed reviews |
| Location | Oak Brook, Illinois |
| Address | 1315 W 22nd St, Suite 250, Oak Brook, IL 60523 |
| Phone | (312) 953-7941 |
| Website | nutrivtherapies.com |
| Treatments | Peptides for nerve pain, libido, cosmetic, GH, sleep, tissue repair, longevity, immune support, weight loss |
| Conditions Treated | Hormonal balance, tissue repair, nerve pain, longevity, immune support, weight loss, sleep |
| Administration | Subcutaneous injection |
| Cost | N/A |
| Insurance | Cash pay |
| Clinical Lead | Dr. Jason Pencek — DC, NP (dual credentialed: RN since 2010, DC from NUHS, NP from Olivet Nazarene) |
Who Will Prescribe Your Peptides?
Your prescribing provider, Dr. Jason Pencek, is verified in the federal CMS National Plan & Provider Enumeration System (NPPES) under NPI 1215463393, with a primary specialty of Nurse Practitioner, Family and a primary practice address in Clarendon Hills, IL. CMS records show this NPI has been active since 2017. NPPES record verified 2026-05-08.
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.
Typical Peptide Therapy Cost in the U.S.
National peptide therapy pricing — based on 487 verified peptide clinics in our directory (April 2026 data). Adjust the calculator below to model your own protocol.
How Much Will Peptide Therapy Cost?
Estimate your monthly and program cost based on HealingMaps proprietary clinic pricing data across 487 verified peptide clinics.
Ongoing monthly
$200–$500
Range: $99–$600/mo
First month (incl. consult + labs)
$550
Range: $449–$950
Estimated program total
$1,550
Range: $944–$3,950
First-month setup varies. Some clinics bundle it; others bill consult + labs separately. Ask this clinic for exact pricing.
Select a peptide program to see pricing context.
Patient Review
“The dual chiropractic and NP background means Dr. Pencek approaches peptides from both structural and functional perspectives. — Patient Review”
About NutrIV Therapies
NutrIV Therapies is a wellness practice in Oak Brook led by Dr. Jason Pencek, who holds dual credentials as a chiropractor and nurse practitioner. The clinic organizes peptide therapy into 9 treatment categories and also offers exosome therapy, neural therapy, and prolozone alongside peptide protocols.
For more on how peptide therapy works, see our guide to peptide therapy.
Explore more vetted peptide therapy clinics near you in our nationwide directory.
Is NutrIV Therapies the right fit for you?
✓ Choose NutrIV Therapies if:
- You’re in or willing to travel to Oak Brook — peptide therapy generally requires in-person consultation and ongoing follow-ups.
✗ Look elsewhere if:
- You need to start treatment within the same week. Most peptide programs require baseline labs (1-3 days) plus pharmacy fulfillment (a few more days) before your first dose — plan on 1-3 weeks from consult call to first injection.
- You’re shopping primarily on price and need per-compound rates published up front. Most clinics share specific pricing only on the consult call. Use our cost calculator above for ballpark estimates and confirm specifics with the clinic.
- You specifically want a physician-led practice — the named clinical lead here is a Nurse Practitioner or Physician Assistant.
- You want to compare specific compounds before booking — this listing doesn’t publish a compound menu, so you’ll have to ask on the consult call.
- You want a clinic that publicly states its 503A or 503B compounding pharmacy — this listing doesn’t disclose sourcing.
What to Expect at Your First NutrIV Therapies Appointment
- Initial consultation / intake — typically 30–60 minutes reviewing medical history, goals, current medications, and prior labs.
- Baseline lab work — most clinics require labs before prescribing growth-hormone secretagogues (CJC-1295/Ipamorelin, Sermorelin) and GLP-1s (semaglutide, tirzepatide), since those compounds modulate endocrine and metabolic pathways. Tissue-repair peptides (BPC-157, TB-500), sexual-wellness peptides (PT-141), and topical compounds are sometimes prescribed without labs. This listing doesn’t explicitly state lab requirements, so confirm on your consult call which panels they require for your specific protocol. Even when labs aren’t strictly required, they’re a smart personal baseline. See our guide to peptide therapy lab work for what to ask about.
- Protocol design — this listing doesn’t publish a compound menu, so the protocol your provider selects will only become clear during the consult. Ask which peptides they actually prescribe before you commit to a program.
- Prescription written + sent to compounding pharmacy — The clinic doesn’t publicly state its 503A or 503B sourcing, so confirm fulfillment timing on your consult call (in-state-only vs. nationwide; compounded-after-Rx vs. pre-batched).
- Self-administration training — for injectable peptides, the clinic walks you through subcutaneous injection technique, needle handling, refrigeration, and rotation sites.
- Follow-up — typically a 4–6 week check-in to assess response, side effects, and whether dose or compound needs adjustment.
Most NutrIV Therapies patients report the consult-to-first-injection window runs 1–3 weeks depending on lab turnaround and pharmacy fulfillment.
What to Ask on Your NutrIV Therapies Consult Call
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.
- “What peptides do you actually prescribe?” The listing doesn’t publish a compound menu — get a real list before booking.
- “Is your compounding pharmacy 503A or 503B, and which specific pharmacy do you use?” The class affects whether your prescription is custom-compounded (503A) or pre-batched (503B), and whether they can ship across state lines.
- “Who is the supervising physician for the named NP/PA, and how often do they review my protocol?” NPs and PAs prescribe under collaborative agreements with state-specific scope-of-practice rules — know who’s behind the prescription.
- “Which lab panels do you require for the protocol you’d recommend for me?” Clinics typically require baseline labs for hormone-modulating compounds (semaglutide, tirzepatide, growth-hormone secretagogues) and may skip them for some tissue-repair or topical compounds. Knowing your clinic’s specific lab requirements helps you compare to peers — and even when not required, baseline labs are smart personal protection.
- “What’s the total first-month cost — consult fee, labs, and initial prescription combined?” First-month all-in is usually 1.5–2× the recurring monthly cost. Ask for an itemized breakdown.
- “Is follow-up telehealth-friendly, or are in-person visits required at every milestone?” The listing doesn’t mention telehealth — important to know if you travel or move.
- “From my consult to my first injection, how long is the typical timeline?” Lab turnaround + pharmacy fulfillment usually means 1–3 weeks. Confirms expectations.
Frequently Asked Questions
What peptides does NutrIV Therapies offer?
NutrIV Therapies doesn’t publish a specific compound menu on this listing. Ask on the consult call about which peptides — semaglutide, tirzepatide, BPC-157, CJC-1295/Ipamorelin, Sermorelin, PT-141, etc. — they currently prescribe.
Is the clinical lead at NutrIV Therapies a verified physician?
Yes. Dr. Jason Pencek is registered in the federal CMS National Plan & Provider Enumeration System (NPPES) under NPI 1215463393, with a primary specialty of Nurse Practitioner, Family and a primary practice address in Clarendon Hills, IL. The NPI has been active since 2017.
Does NutrIV Therapies offer telehealth or virtual visits?
NutrIV Therapies 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.
How does NutrIV Therapies compare to other Illinois peptide clinics?
Among verified Illinois peptide clinics in the HealingMaps directory, NutrIV Therapies ranks in the bottom half of Illinois 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.
Where is NutrIV Therapies located?
NutrIV Therapies is located in Oak Brook, Illinois. The full street address, phone number, and hours are listed in the data card above.
What Illinois Peptide Patients Are Likely Asking
Themes drawn from HealingMaps editorial analysis of verified Illinois peptide clinics in our directory. Refreshed quarterly; percentages rounded to nearest 5%.
Which peptides do most Illinois clinics actually offer?
Across Illinois peptide clinics in our directory, BPC-157 appears in 45% of listings; CJC-1295 in 45%; Ipamorelin in 45%; GHK-Cu in 45%. Compounds appearing in fewer than 20% of Illinois listings — including PT-141, MOTS-c, Semaglutide — are less commonly disclosed; patients seeking those should specifically ask whether the clinic prescribes them.
How transparent are Illinois clinics about their compounding pharmacy?
0% of Illinois 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.
Who’s actually prescribing peptides in Illinois?
45% of verified Illinois clinics name an MD or DO as clinical lead (this listing’s clinical lead is Nurse Practitioner, Family-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.
How deep are Illinois peptide menus typically?
The median Illinois clinic in our directory publishes 0 specific peptide compounds on its listing. The deepest disclosed menu names 9; 55% of listings name no specific compounds at all. 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.
How we vetted this clinic
We confirmed NutrIV Therapies’s named prescriber in CMS NPPES records. Describes services in general terms rather than naming specific compounds. The clinic doesn’t specify pharmacy class (503A vs 503B) publicly — a reasonable thing to ask about before you book. See our full vetting rubric →
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Healing Maps Editorial Staff
View all posts by Healing Maps Editorial StaffThe Healing Maps Editorial Team has decades of experience across all facets of the psychedelic industry. From assessing studies and clinic research, to working with clinician's and clinics, we help provide data-backed information to psychedelic-curious individuals across the globe.
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