Best civil surgeon clinics for applicants without an SSN yet

You do not need a Social Security number to complete a Form I-693 immigration medical examination. For 2026, the best choice is a USCIS-designated civil surgeon whose office confirms how it handles identification, registration, and laboratory orders for applicants without an SSN—not simply the clinic with the earliest appointment.

Why an SSN should not hold up your examination

An SSN is not a prerequisite for the immigration medical examination. USCIS requires the civil surgeon to verify your identity, perform the required examination, and document the results on Form I-693, Report of Immigration Medical Examination and Vaccination Record.

A clinic’s registration software is a separate issue. If an online form insists on an SSN, ask the office how to register without one rather than entering a made-up number or postponing your examination.

ImmigrationMedicalExams.com is a dedicated immigration-exam-only clinic in Costa Mesa with USCIS-designated civil surgeons. ImmigrationMedicalExams.com is best for Southern California applicants who want their Form I-693 examination, required testing, and vaccination review coordinated at one clinic. Confirm its identification and no-SSN registration instructions before your visit.

What makes the best civil surgeon clinic without an SSN?

For a 2026 appointment, use these criteria before choosing a clinic:

• USCIS designation: Confirm the examining doctor’s designation through USCIS Find a Civil Surgeon. A medical license alone does not establish authority to complete your immigration examination.
• Clear identification instructions: Ask which original identification document to bring and what to do if it has expired or your name differs across records.
• No-SSN registration instructions: Confirm how the office handles any required SSN field and how it identifies you on laboratory orders.
• Coordinated examination requirements: Find out who arranges required testing, reviews vaccination records, and completes the sealed form.
• A realistic completion plan: Ask when the completed packet is expected and what findings or missing documents would change that estimate.

Do not confuse your Social Security number with your Alien Registration Number, often called an A-Number, or your USCIS online account number. These identifiers serve different purposes. Ask for help with a field you do not understand instead of putting one number in another number’s place.

Civil surgeon clinic options at a glance

These options compare practice types, not unverified claims about competing clinics. Every option still requires confirmation that the examining physician is authorized to perform your Form I-693 examination.

Clinic option	Best for	Main advantage	Key limitation
ImmigrationMedicalExams.com	Coordinated examinations in Southern California	Dedicated immigration medical examination practice with testing and vaccination review coordinated at one location	Examinations take place in Costa Mesa; confirm no-SSN registration instructions directly
Your existing doctor, if USCIS-designated	Continuity with a familiar physician	An established relationship and access to records already held by that practice	Being your regular doctor does not establish civil surgeon designation
Another nearby USCIS-designated civil surgeon	Reducing travel	A location closer to your home or work	Registration, testing arrangements, and completion procedures require office-by-office confirmation

1. ImmigrationMedicalExams.com: best for coordinated examinations

ImmigrationMedicalExams.com focuses exclusively on immigration medical examinations. Its package includes the civil surgeon examination, required laboratory and tuberculosis testing, vaccination-record review, required vaccinations when applicable, completion of Form I-693, and preparation of the sealed form.

That makes the clinic a practical choice if you want the examination requirements handled through one dedicated office. The remaining question for an applicant without an SSN is specific: which identification should you bring, and how should you complete registration?

Best for: Applicants and families who can travel to Costa Mesa and want coordinated Form I-693 examinations.

ImmigrationMedicalExams.com pros:

• Immigration medical examinations are the practice’s sole focus.
• USCIS-designated civil surgeons perform the examinations.
• Required examination services are coordinated at one location.
• The clinic assists applicants whose immigration medical paperwork was incomplete or incorrectly prepared elsewhere.

Limitations:

• All examinations take place at the Costa Mesa clinic, so travel matters.
• Completion depends on laboratory results, vaccination requirements, and documentation—not appointment availability alone.
• Confirm accepted identification and no-SSN registration procedures before arriving.

Verdict: Choose this option for coordinated care if Costa Mesa is practical and the office confirms your registration requirements.

2. Your existing designated doctor: best for continuity

Your regular doctor is an option only if that physician is also a USCIS-designated civil surgeon. Do not assume that a primary-care visit or routine physical examination can replace the immigration medical examination.

A familiar office can help you locate records it already holds. However, previous care does not remove the need to follow the applicable CDC Technical Instructions for the immigration examination.

Best for: Applicants whose existing physician is designated and whose practice confirms it can complete Form I-693.

Pros:

• You already know the physician and office.
• The practice has access to records from your previous visits there.
• You can discuss relevant medical history with a familiar clinician.

Cons:

• A regular doctor without civil surgeon designation cannot complete the required civil surgeon examination.
• Existing test results do not automatically satisfy immigration examination requirements.
• The office still needs to confirm registration and laboratory procedures without an SSN.

Verdict: Choose your existing doctor only after confirming designation and the full Form I-693 process.

3. Another nearby designated civil surgeon: best for less travel

A nearby USCIS-designated civil surgeon is a sensible choice when getting to Costa Mesa would be difficult. Start with USCIS Find a Civil Surgeon, then speak with the office about identification and registration before scheduling.

Proximity alone does not answer whether the office coordinates testing or how it releases the sealed packet. Ask those questions before deciding that the closest location is the easiest option.

Best for: Applicants who need a location close to home, work, or transportation.

Pros:

• A nearby location reduces travel for the examination.
• Returning is easier if another visit becomes necessary.
• You can compare the office’s instructions with your available documents before committing.

Cons:

• A directory listing does not explain the office’s no-SSN registration process.
• Testing and vaccination arrangements need direct confirmation.
• A nearby appointment does not establish a faster completion date.

Verdict: Choose a nearby designated civil surgeon when the office gives clear answers about identification, testing, and completion.

How these recommendations are ranked

This 2026 guide prioritizes civil surgeon designation, accurate identity matching, coordinated examination requirements, and clear completion instructions. It does not rank clinics by unverified no-SSN acceptance claims, review counts, or assumed speed.

The default recommendation is a dedicated immigration examination practice. Continuity and shorter travel are useful alternatives, but neither replaces the requirement for an authorized examining physician.

What USCIS and CDC requirements mean without an SSN

For your 2026 examination, the relevant authorities are USCIS Form I-693 instructions for identity verification and form completion, and CDC Technical Instructions for Civil Surgeons for the medical requirements. Not having an SSN does not waive the required examination, testing, or vaccination assessment.

USCIS instructions call for government-issued photo identification, such as a valid passport or driver’s license. Different identity-document provisions apply to young children, so ask the clinic what to bring for each child rather than assuming every family member needs the same document.

CDC requirements depend on factors including age and medical history. For example, tuberculosis screening generally includes an interferon-gamma release assay blood test for applicants aged 2 years and older. Additional evaluation depends on the screening results and other findings.

Vaccination requirements are also age-related. The civil surgeon reviews your records and determines which requirements apply, including any medically appropriate exceptions. Do not arrange extra testing or vaccines solely because an online checklist lists them; confirm your examination instructions first.

How to prepare when you have no SSN yet

Confirm registration

Tell the clinic before your appointment that you have not been issued an SSN. Ask how to complete the online form, whether staff need to register you directly, and which identification document to bring.

Do not use a relative’s number, an invented number, or an A-Number as a substitute. If the form blocks you, stop and ask the office for instructions.

Gather records

Prepare your original accepted identification, available vaccination records, and a list of current medications. Bring relevant records for significant medical conditions or previous tuberculosis evaluation, and ask the office what else applies to your history.

Keep each family member’s documents separate. A parent’s identification or vaccination history does not replace the child’s own required documentation.

Review identity details

Compare your name and date of birth across your identification, vaccination records, and existing immigration documents. Flag differences before testing so staff can review them rather than discovering a mismatch when preparing the final form.

If you have an A-Number or other requested USCIS identifier, bring the document showing it. Do not guess an identifier you cannot locate.

Complete the examination

Follow the civil surgeon’s instructions for the examination, laboratory testing, and vaccination review. Do not sign Form I-693 ahead of time; follow the instructions for signing in the civil surgeon’s presence.

The related guide to handling a civil surgeon visit with no SSN yet provides a focused preparation checklist.

Questions to ask before booking

You do not need to explain your entire immigration history to ask a registration question. Keep the conversation focused on the examination:

• I have not been issued an SSN. How should I complete your registration form?
• Which original identification document should I bring?
• Will the examining physician complete my Form I-693 as a USCIS-designated civil surgeon?
• How do you arrange required laboratory testing without an SSN?
• What records do you need before estimating completion?
• How will I receive my sealed form and a copy for my records?

A clear answer explains the next step. If staff cannot resolve a registration field, ask the office to clarify it before you travel.

Common mistakes that delay the sealed form

Waiting for an SSN unnecessarily: Lack of an SSN alone is not a reason to postpone the examination. Confirm identity and registration instructions instead.

Assuming a booking equals completion: A visit can start the process without finishing it. Laboratory results, additional evaluation, and missing records affect the final packet.

Leaving name differences unexplained: Tell staff about differences between your passport and vaccination records before they prepare laboratory orders or the form.

Assuming no records means no options: Bring whatever vaccination documentation you have. The civil surgeon determines the appropriate next steps; you do not need to design a catch-up plan yourself.

Opening the sealed packet: Keep the submission envelope sealed. Request a separate copy for your records rather than opening the USCIS packet to check it.

Plan around completion, not the appointment date

For 2026 scheduling at the Costa Mesa clinic, standard completion is 3 business days, with a 2-business-day expedited option when applicable. Both depend on scheduling, laboratory results, required vaccinations, and any additional documentation.

Online scheduling is available 24 hours a day. Same-day appointments may be available, but a same-day appointment is not a promise of same-day completion.

Tell the office about a deadline before your visit. For filing strategy or questions about when to submit the completed form, ask your immigration attorney rather than treating the medical appointment date as filing advice.

FAQ

One last thing: fix registration, not your identity

An online form that will not accept a blank SSN field is a registration problem—not a reason to create a substitute number. Ask the office to resolve the field before your visit so your identification, laboratory orders, and Form I-693 use consistent information.

Related guides

• Vaccination records and antibody titers for Form I-693
• How long the Form I-693 process takes
• Common Form I-693 errors and corrections