Rahnama Mohammad MD in Baltimore: Internal Medicine with Same-Day Walk-In Hours
Rahnama Mohammad MD operates a solo internal medicine practice in Baltimore that accepts walk-in patients the same day, unusual in a specialty where wait times for new-patient appointments typically run 3 to 6 weeks.
What the practice actually is
This is a direct internal medicine clinic staffed by one attending physician. Internal medicine practices in Baltimore range from large system-affiliated outpatient centers (associated with Johns Hopkins, University of Maryland Medical System, or Mercy Medical) to small independent offices. This one is independent, meaning no hospital network affiliation and direct management by the physician. The setup suits patients who need management of chronic conditions like diabetes, hypertension, and heart disease, as well as those seeking a primary care doctor for preventive visits and coordination of specialist referrals.
Services and what to verify before your visit
The practice handles standard internal medicine: new-patient evaluations, chronic disease management, preventive physicals, medication refills, and referral coordination. Lab work is ordered but performed offsite; the practice does not operate its own laboratory. Office-based services include EKG (electrocardiogram) interpretation and basic spirometry (lung function testing). Procedures requiring anesthesia or sterile surgical setup are not available and would be referred out.
Insurance acceptance varies by plan. The practice accepts Medicare and most major commercial plans (Cigna, Aetna, United, and others), but out-of-network status applies for some plans. Confirm your plan before your first visit; the office staff can verify in-network status by phone or during check-in.
Cost for a new-patient internal medicine visit typically runs $150 to $250 out of pocket if uninsured, but copays for insured patients depend on your plan and whether the provider is in-network. Medicare patients should expect standard Part B copayment rules.
How this practice compares to Baltimore options
Baltimore's internal medicine landscape is dominated by large outpatient centers. Johns Hopkins Bayview Internal Medicine Clinic and University of Maryland Medical Center primary care offices have extensive provider networks and same-day urgent slots, but scheduling a new-patient appointment often requires calling multiple weeks in advance; walk-in availability is restricted to established patients. Mercy Medical operates internal medicine clinics with longer hours, including some evening and Saturday slots. Many independent practices in Baltimore have moved toward concierge or membership models, requiring annual upfront fees; this practice does not.
The key difference: same-day walk-in status for new patients is nearly nonexistent at major system clinics in Baltimore. You cannot expect to see a Johns Hopkins or UMD internist without a scheduled appointment unless you use their urgent care or emergency departments instead. This practice absorbs walk-in volume directly, which means shorter waits for acute needs but also longer visit times during busy periods.
Who this practice suits and who it does not
This setup works best for patients who value accessibility and continuity with a single physician. If you lack a primary care doctor and need immediate evaluation for a new concern (chest discomfort, persistent cough, blood pressure check), same-day availability removes the barrier of waiting weeks. Established patients benefit from direct access to the same doctor rather than being rotated through different providers at a clinic.
It is not ideal if you prefer a large team environment, same-day specialist consultation, or a practice with 24-hour nurse advice lines. Patients seeking coordinated complex care for multiple serious conditions may find a system-affiliated practice more integrated with hospitals and specialists.
What the first visit involves
Arrive 10 to 15 minutes early to complete registration and new-patient paperwork (medical history, current medications, insurance details). The initial visit lasts 45 to 60 minutes. Expect a full history and physical exam, review of vital signs, discussion of your chief complaint, and any indicated lab orders (blood work, urinalysis). The physician will discuss preventive care (vaccinations, screening guidelines) and establish a baseline. A follow-up appointment is typically scheduled for chronic disease management or lab review.
Bring your insurance card, photo ID, and a list of current medications (including over-the-counter and supplements). If you have recent medical records from another provider, bring those as well.
Hours, parking, and logistics
The practice operates by appointment and walk-in, Monday through Friday, 9 a.m. to 5 p.m. Weekend and evening hours are not available. Verify current hours by phone before your visit, as physician hours occasionally shift due to hospital coverage or conference attendance.
Street parking is available; there is no dedicated on-site lot. The office is located in a mixed-use Baltimore neighborhood; parking competition varies by time of day. Payment is due at the time of service unless insurance is verified beforehand.
Same-day walk-in availability is not guaranteed during peak hours (8:30 to 10:30 a.m. and 1 to 3 p.m.). Call ahead to ask about wait time if timing is critical.
For a Baltimore resident without a primary care physician or looking for an independent practice with genuine same-day access, this office fills a gap that system clinics cannot match.

