This page is general health information, not medical advice. It cannot tell you whether you have an infection. A clinician can, and the testing options on this site are a good place to start.

Walking into a clinic for an STD test can feel like a big step. It is also a routine visit for the staff who see people every day. This guide walks through a walk-in visit in Boston from the front door to the follow-up call.

It covers what to bring, what the visit usually looks like, and how to avoid the small snags that send people home untested.

Before You Go: Know What "Walk-In" Means in Boston

Not every clinic that offers testing takes people without an appointment. Some are first-come, first-served during set hours. Others want a phone call first. A few have not said either way.

Here is what the clinics' own pages say right now.

Fenway Health Sexual Health Clinic (1340 Boylston Street, 4th floor) lists walk-in hours: Tuesday 1-7 p.m., Wednesday and Thursday 3-7 p.m., and Friday 9 a.m.-12 p.m. Monday 9 a.m.-4 p.m. is by appointment only. Check-in closes 30 minutes before the end time. The phone is 617-267-0159.
X-Clinic at Codman Square Health Center (637 Washington St., Dorchester) lists Express visits as walk-in during operating hours. Express visits are for people with no symptoms and no known exposure. The phone is 617-822-8350.
TrueCare@MAC testing at the Multicultural AIDS Coalition (9 Palmer Street, Roxbury) says an appointment is optional. You can book or come without one. The phone is 617-442-1622.
Boston STD Clinic at Boston Medical Center (725 Albany St., 9th Floor, Suite 9C) says appointments are made by phone at 617-414-2803 or through MyChart for established patients. Its page does not say whether walk-ins are accepted, so call first.
Planned Parenthood League of Massachusetts (1055 Commonwealth Ave) is listed in the CDC GetTested directory as appointment required. The phone is 617-295-7235.

DotHouse Health and the Boston Public Health Commission also appear in the CDC GetTested directory. The listings do not clearly confirm walk-ins. Check with them directly.

For a fuller side-by-side list with costs, see our guide to STD testing in Boston and what it costs. You can also browse the local testing list.

What to Bring: Your Short Checklist

Your health insurance card, if you have one. Fenway Health says it bills insurance when you have it. Codman says it accepts all insurance.
A phone number you can answer. Clinics use it to share results. Fenway Health lists results in 3 to 5 business days.
A few notes on dates. Think of the approximate date of your last sexual contact and any recent partner changes. You do not need exact dates.
A list of medications you take, including PrEP if you use it.
Your questions. Writing them on your phone helps if you get nervous.

The clinic pages in our research do not say whether photo ID is required. If that worries you, ask when you call.

Step-by-Step: A Walk-In Visit From Start to Finish

Step 1: Check the day and the clock

Walk-in hours are often shorter than regular office hours. Look at the clinic's current schedule before you leave. Codman's two pages list different schedules, so call to confirm. Fenway Health closes check-in 30 minutes before the end of each walk-in window. Plan to arrive well before that.

Step 2: Call ahead if you can

A two-minute call can save a trip. Ask three things. Are walk-ins being seen today? Is there a long wait? Is there anything you should bring? If you would rather not call a clinic, the City of Boston's Mayor's Health Line at 617-534-5050 offers free, confidential, multilingual health information and referral.

Step 3: Check in at the front desk

Tell the desk you are there for STD testing. You do not need to give a reason beyond that. You may fill out a short form with contact details and insurance information. Staff may ask whether you have symptoms. This helps them decide which kind of visit fits you.

Step 4: Talk with a clinician or counselor

Expect a private conversation about your sexual health. The CDC STI Treatment Guidelines (2021) encourage clinicians to take a sexual history in a respectful, nonjudgmental way. Questions may cover the kinds of sex you have, the number of partners and whether you use protection. They apply to people of every gender and orientation.

You decide how much to share. Honest answers help the clinician choose the right tests, and the clinic is there to help, not to judge.

Step 5: Give your samples

Depending on what you discuss, testing may include a urine sample, a swab and a blood draw. The CDC says the sites tested can depend on the kinds of sex you have. Swabs may be taken from the throat, rectum or genitals. In some settings you can collect the swab yourself in private.

The Boston STD Clinic page lists free routine testing for HIV, chlamydia, gonorrhea, syphilis and hepatitis C. Codman lists rapid HIV testing among its services. Ask which tests are being done so you know what to expect.

Step 6: Ask about timing

Some infections take time to show up on a test. The CDC explains that how soon HIV can be detected depends on the type of test used. A clinician can tell you if a repeat test makes sense after a recent exposure. Ask this before you leave.

Step 7: Ask about prevention while you are there

Several Boston clinics also offer HIV prevention. Fenway Health, Codman and the Boston STD Clinic list PrEP and PEP. Fenway Health also lists doxy-PEP. The CDC issued guidance on doxy-PEP in 2024, and a clinician can tell you whether it fits your situation. Any medicine is something a clinician prescribes, and it is a conversation for you and them.

Step 8: Confirm how you will get results

Before you leave, ask three things. How will they contact you? About how long will it take? What should you do if you do not hear back? Write down the answer or save the clinic number in your phone.

Cost and Coverage: What the Clinics Say

Costs depend on the clinic, so check the details below.

The Boston STD Clinic page says routine testing is free and that cost assistance exists for people without insurance.
Fenway Health says uninsured patients can be seen free through grant funding. It bills insurance if you have it. Lab charges from Quest Labs are billed to insurance directly, and the patient is responsible for those charges. The page does not mention a sliding scale.
Codman lists a sliding fee schedule. It says it provides testing and treatment regardless of citizenship status. Its coverage help line is 617-822-8162.
The Multicultural AIDS Coalition lists testing as free.
Planned Parenthood League of Massachusetts is listed as accepting insurance, Medicaid and Medicare, with a sliding scale.

Prices can change. If a clinic's page does not list a price, ask when you call.

If You Are Under 18

Massachusetts law, M.G.L. c. 112, s. 12F, lets a minor who reasonably believes they are at risk of exposure through sexual activity consent to care to diagnose or treat an infection without a parent's consent. The law also covers HIV prevention for a minor who is sexually active. The City of Boston tells people 13 or older they can get a confidential STI test without parental permission. Codman also notes that teen testing is confidential.

Under the same statute, records are confidential between the minor and the clinician. There is one exception: a provider must notify a parent or guardian if the minor's life or limb is seriously endangered.

Tips and Common Mistakes to Avoid

Arriving near closing time. Walk-in windows can close early. Fenway Health stops check-in 30 minutes before the end. Go early in the window.
Assuming every clinic takes walk-ins. Several listings do not confirm them. A quick call settles it.
Using an old address. Codman's page lists an older Multicultural AIDS Coalition address on Washington Street. The coalition's own page lists 9 Palmer Street in Roxbury.
Mixing up two clinics on Albany Street. The Boston STD Clinic is at 725 Albany St. The Boston Public Health Commission listing in the CDC directory is at 774 Albany St. They are different providers.
Skipping questions. If a word is unfamiliar, ask. Clinicians expect it.
Leaving without a results plan. Confirm how and when you will hear back before you go.
Treating a single visit as the end. A clinician may suggest a later retest depending on timing. Put it on your calendar.
Checking eligibility. Fenway Health's clinic page is aimed at gay, bisexual and other men who have sex with men, transgender and gender diverse people, and their partners. Ask the clinic if you are unsure it fits you.

What to Expect After Your Visit

Results can arrive by phone or through a patient portal, depending on the clinic. Fenway Health lists 3 to 5 business days. Other clinics have not published timing in the sources we reviewed, so ask.

A result may be negative, which means the test did not detect that infection at the time of testing. A result may also be positive. A clinician or counselor will explain what it means and the next steps. Many infections are straightforward to manage once found.

The CDC STI Treatment Guidelines describe chlamydia, gonorrhea, syphilis and trichomoniasis as curable with treatment from a clinician.
HIV, herpes and HPV are not curable, but they are treatable or manageable with care from a clinician.

Do not choose treatment for yourself. Only a clinician can prescribe it. If a partner needs testing too, ask your clinician how to reach them.

On privacy, Massachusetts General Laws c. 111, s. 119 makes venereal disease reports and records non-public. They can be disclosed only on a judicial order or to officials whose duties entitle them. Ask the clinic how it handles your information if you have specific concerns.

A Simple Plan to Follow

Pick a clinic from the list above and check its current hours.
Call ahead if the page does not confirm walk-ins.
Bring your insurance card (if you have one), a working phone number and a few notes.
Arrive early in the walk-in window.
Ask about tests, timing, prevention and results before you leave.

Testing is a normal part of caring for your health. For general questions, the Boston Public Health Commission's Infectious Disease Bureau is at 617-534-5395.

Walk-In STD Testing Near Me: What to Expect When You Arrive