
Oak Tree Primary Care
Quick Facts
| Membership Price Range | $59/mo (ages 13-19, only if parents are members) | $99/mo (ages 20-45) | $139/mo (ages 45+) | $100 one-time enrollment fee (max $300/family) | Semi-annual billing: 5% discount | Annual billing: 10% discount | Family of 4+: 10% discount per additional member | College discount for 20-45yo: $10 off |
| Practice Type | Direct Primary Care |
| Location | Columbia, Ellicott City, Clarksville, Fulton, Baltimore, Howard County, DC Metro |
| Doctors | Sarah Zaheer MD, Family Medicine |
| Telehealth Type | Office visits, telehealth, phone calls, emails, portal communication, and HIPAA secure texting |
| Housecalls | Yes |
| Telehealth Available | Yes |
About
At Oak Tree Primary Care in Columbia, Maryland, Dr. Sarah Zaheer delivers root-cause-focused family medicine on a flat monthly membership. She built the practice around a straightforward belief: a strong, longitudinal doctor-patient relationship produces better health outcomes.
Dr. Zaheer holds board certifications in both Family Medicine and Lifestyle Medicine and earned the Menopause Society Certified Practitioner designation. Her clinical scope is broad, covering chronic disease management, women's health, mental health, preventive care, and lifestyle medicine. Appointments run 30 to 90 minutes, and members reach Dr. Zaheer by phone, telehealth, secure text, or in-person same-day visits. The practice does not bill insurance and charges no co-pays. Members gain access to heavily discounted cash-price labs and imaging. Oak Tree Primary Care also hosts community wellness events, including a monthly Walk with a Doc at Centennial Park in Howard County.
Details
Address
5999 Harpers Farm Road, Suite E260, Columbia, MD 21044
Phone
(443) 228-8592Website
Visit websiteMembership
$99/monthly
Membership Details
Flat monthly membership fee based on age. Ages 13-19: $59/mo (only if parents are members). Ages 20-45: $99/mo. Ages 45+: $139/mo. One-time registration fee of $100 per individual (maximum $300 per family). Semi-annual billing 5% discount; annual billing 10% discount. Family of 4+: 10% discount per additional member. College discount for 20-45yo group: $10 off per college student. Employer discounts available. Membership includes unlimited visits, same day/next day appointments, no co-pays, telehealth, phone, email, portal, HIPAA secure texting, and home visits when medically appropriate. Does not replace health insurance.
Typical Appointment
60 minutes
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Frequently Asked Questions
Membership fees follow a flat monthly rate based on age. Adults ages 20 to 45 pay $99 per month, adults 45 and older pay $139 per month, and teens ages 13 to 19 pay $59 per month if their parents are also members. A one-time registration fee of $100 per individual applies, with a family maximum of $300. Members who choose semi-annual billing receive a 5% discount, and annual billing earns a 10% discount. Families of four or more, college students, and employer groups may qualify for additional discounts.
Membership covers unlimited visits with no co-pays, same-day and next-day appointments, telehealth, phone and email access, HIPAA-secure texting, and home visits when medically appropriate. In-house testing such as EKG, lung function testing, urine testing, and rapid strep testing all fall under the membership fee. Members also gain access to heavily discounted cash-price labs and imaging. Oak Tree Primary Care does not bill any third party, so members never receive surprise bills for primary care services.
The practice does not bill insurance or accept insurance payments for membership fees. Members pay a flat monthly fee directly, with no co-pays and no third-party billing. Members should maintain a separate health insurance plan, and Oak Tree Primary Care recommends pairing membership with a high-deductible health plan. The practice can provide a superbill or invoice that members may submit to their insurer for potential reimbursement.
Yes. Members can use HSA or FSA funds to cover their Oak Tree Primary Care membership fees.
The first step is to book a Discovery Call with the practice. During that conversation, both parties assess whether Oak Tree Primary Care is a good fit. Due to high demand, new patients then join a waitlist. Wait times vary and the practice communicates expected timelines during the Discovery Call. Oak Tree Primary Care onboards new patients thoughtfully to protect access for existing members.
Appointments at Oak Tree Primary Care run between 30 and 90 minutes depending on your needs. Visits move at an unhurried pace, and members can book same-day or next-day appointments with no wait times at the office.
Yes. Dr. Zaheer offers telehealth visits as part of every membership. Members can also reach her by phone, email, and HIPAA-secure text through Spruce Health. Home visits are available when medically appropriate.
Yes. Oak Tree Primary Care works with employers who want to include a DPC membership as part of their employee benefits package. Employer discounts apply, and the arrangement can pair well with high-deductible health plans to reduce overall healthcare costs for both businesses and employees.
The practice serves patients ages 13 and up. Teens ages 13 to 19 may enroll only if their parents hold active memberships. Adults of all ages qualify for membership at the appropriate monthly rate.
Oak Tree Primary Care does not prescribe narcotics for chronic pain or benzodiazepines for chronic use. Dr. Zaheer focuses on root-cause-focused care and medication de-prescribing where appropriate, prioritizing lifestyle and evidence-based strategies for managing chronic conditions.
Practice last updated March 21, 2026






