
PrimaryMD
Quick Facts
| Practice Type | Concierge |
| Location | La Cañada Flintridge, Manhattan Beach, Beverly Hills, Upper East Side, Flatiron District, SoHo, Tribeca, San Mateo Park, Easton Addition, Palo Alto, Menlo Park, Atherton, Corte Madera, Larkspur, Kentfield, Ross, Sausalito, Mill Valley, Tiburon, Belvedere, Potrero Hill, South Beach, Mission Bay, Noe Valley, Sea Cliff, Nob Hill, Russian Hill, Marina District, Cow Hollow, Presidio Heights |
| Doctors | Michael Billington MD, Internal Medicine, Sukhjit Takhar MD, Internal Medicine |
| Panel Size | 250 patients per doctor |
About
At PrimaryMD, Dr. Sukhjit 'Sarge' Takhar and Dr. Michael Billington deliver proactive, precision-driven primary care across Los Angeles, the San Francisco Bay Area, New York City, and New Jersey. The practice caps its panel at fewer than 250 members, roughly 100 families. That limit keeps each patient relationship thorough and personal.
PrimaryMD pairs advanced diagnostics with a dedicated care team that includes board-certified physicians and a nationally certified health coach. The clinical toolkit covers 100-plus marker blood panels, genomics, VO2 max testing, DEXA scans, and advanced imaging. The practice integrates wearable data, biometric data, and lab results into tailored health plans. A partnership with Sollis Health extends coverage around the clock. AI-powered documentation keeps operations streamlined so physicians stay focused on medicine.
Details
Website
Visit websiteTypical Appointment
120 minutes
Our Doctors
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Frequently Asked Questions
Prospective members start by joining the waitlist through the PrimaryMD website. A member of the care team then follows up to answer questions and walk you through the process. The practice serves members across Los Angeles, the San Francisco Bay Area, New York City, and New Jersey.
PrimaryMD caps its panel at fewer than 250 members, or about 100 families. That limit allows physicians to build genuine, lasting relationships with each patient and invest real time in every visit.
Initial visits run two hours. The practice also offers extended follow-up appointments. Most members receive an appointment within one to three days of requesting one, and same-day visits are available.
PrimaryMD runs 100-plus marker blood panels, genomics testing, VO2 max testing, DEXA scans, and advanced imaging. The care team integrates results from labs, wearable devices, and biometric data into each member's personalized health plan.
Yes. Health coach Sarah Isenberg, a Nationally Board-Certified Health and Wellness Coach, works directly within the care team. She collaborates with physicians to build customized plans covering nutrition, fitness, sleep, and stress management, drawing on each member's biometric and laboratory data.
Yes. PrimaryMD partners with Sollis Health to extend around-the-clock coverage to its members. This partnership ensures members have access to care beyond standard office hours.
Members should carry health insurance separately to cover labs, imaging, specialist visits, and hospital services. The care team coordinates specialist referrals directly on behalf of members.
PrimaryMD serves members across four metro areas: Los Angeles, the San Francisco Bay Area, New York City, and New Jersey. The practice covers a wide range of specific neighborhoods and communities within each region.
PrimaryMD focuses on primary care, internal medicine, preventive medicine, executive health, longevity medicine, and infectious disease management. The physicians take a proactive, data-driven approach. They use advanced diagnostics and personalized health plans to help members stay ahead of health issues rather than respond to them after the fact.
The practice integrates wearable data, biometric readings, and laboratory results into each member's health plan. Physicians use AI-powered documentation tools to reduce administrative work and stay focused on care. These systems allow the team to track trends over time and adjust plans as new data comes in.
Practice last updated March 21, 2026


