
Big Trees MD
Quick Facts
| Membership Price Range | Ages 0-18: $35/mo | Ages 19-25: $60/mo | Ages 26-64: $89/mo | Ages 65-99: $129/mo | Ages 100+: $1/mo | Family Plan (2 adults under 65 + 2 kids): $199/mo (additional kids $25/mo) | Mama/Pregnancy: $79/mo | Couple Ages 19-64: $160/mo | Couple Ages 65-99: $232/mo | One-time enrollment fee $99 (waived if year purchased upfront) |
| Practice Type | Direct Primary Care |
| Location | Arnold, Calaveras County, Northern California |
| Doctors | Maryal Concepcion MD FAAFP, Family Medicine, Jeremiah Fillo MD, Family Medicine |
| Telehealth Type | Email, text, phone, or video visits; care hours 8am-8pm seven days a week |
| Housecalls | Yes |
| Telehealth Available | Yes |
About
At Big Trees MD in Arnold, California, two board-certified family physicians deliver full-scope primary care through a direct membership model. Dr. Maryal Concepcion has served patients in Northern California since 2012 and in Calaveras County since 2015. Dr. Jeremiah Fillo joins her with a shared passion for high-quality, personalized medicine. Together, they keep the patient panel intentionally small so each member receives genuine time and attention.
The practice operates seven days a week from 8am to 8pm. Members reach their doctor by text, phone, email, video call, or in-home visit. Same-day and next-day appointments are routinely available. Big Trees MD carries a broad clinical scope, covering everything from prenatal and newborn care to geriatrics, women's health, allergy treatment, skin cancer screening, cardiac testing, and regenerative medicine. The practice also partners with Calaveras County Public Health to serve uninsured community members. Monthly membership starts at $79, with no insurance billing involved.
Details
Address
2855 McKenzie Avenue, Arnold, CA 95223
Phone
(209) 653-2135Website
Visit websiteMembership
$79/monthly
Membership Details
Monthly membership covers primary care needs including unlimited virtual care and in-home visits. No insurance billing. One-time enrollment fee of $99 (waived if a year's worth of membership is purchased upfront). In-home visits beyond plan allowance start at $150/visit.
Our Doctors
Similar Practices Nearby
Explore More
Frequently Asked Questions
Membership at Big Trees MD starts at $79 per month. The practice charges a one-time enrollment fee of $99, which it waives if you purchase a full year of membership upfront. The monthly fee covers primary care needs including unlimited virtual care and in-home visits within plan allowances.
No, Big Trees MD does not bill insurance. The practice operates on a direct membership model, meaning you pay a flat monthly fee and receive care without insurance involvement. Some members use a health-sharing plan or high-deductible insurance policy alongside their membership.
Yes, Big Trees MD offers same-day and next-day appointments for members. The practice is available seven days a week from 8am to 8pm. Members can reach the doctors by text, phone, email, video call, or in-home visit.
Yes, the practice offers telehealth through video calls as well as phone and text communication. Virtual care is included in the monthly membership. This makes it easy for members to get clinical guidance without traveling to the office.
Yes, in-home visits are part of the Big Trees MD membership. Members receive in-home visits within their plan allowance, and additional visits beyond that start at $150 each.
Big Trees MD cares for patients of all ages. The practice covers newborns, infants, children, adolescents, adults, and seniors. It also provides prenatal care and fourth trimester support for expectant and new mothers.
Yes, the practice offers sublingual immunotherapy, also known as allergy drops. This program runs remotely and is open to any California resident, not just patients in the Arnold area. Patients administer the drops at home without needing regular office visits for injections.
Big Trees MD offers an extensive range of services beyond routine primary care. These include regenerative medicine and PRP, VO2 Max and cardiopulmonary exercise testing, skin cancer screening with SkinIO AI technology, posterior tibial nerve stimulation for overactive bladder, continuous glucose monitoring, medical weight loss, gynecologic procedures, and elder care evaluations. The practice also holds a CLIA certification and performs many in-office procedures.
You can enroll directly through the practice. A one-time enrollment fee of $99 applies, though the practice waives this fee if you pay for a full year of membership upfront. Monthly membership starts at $79 after enrollment.
Yes, Big Trees MD has a strong community presence. The practice partners with Calaveras County Public Health to support uninsured residents and has offered free COVID vaccination clinics to any Calaveras County resident. The doctors also conduct physical examinations for the Columbia College Fire Academy.
Practice last updated April 10, 2026

