Ontario Doctor email list
Ontario, CA has 83 doctor in the MapLeads maps index. Use the table below to filter the market, then scrape or export inside MapLeads for full contacts.
Ontario Doctors market size
The 83 figure is a deduplicated count for doctors in Ontario. 33% website coverage means that share of rows has a website or domain. Figures update when MapLeads refreshes the index.
Businesses
83
Doctors in Ontario — same business-row filter as the table.
Website coverage
33%
Share of rows in the current filter with a website field (row aggregate).
Reachable pool
27
Rows in this filter with a website field — enrichment pool.
Outreach score
40
0–100 from current-filter volume and website coverage (query-time on rows).
Outreach calculator
Ontario doctors — start from the 27 operators with a website field (83 total in this cut). Adjust your average order value and close rate to size pipeline.
Formula: reachable pool (rows with a website field) × close rate × average order value. This is a planning estimate, not a forecast — actual conversion depends on offer, list quality, and follow-up.
| Business | Industry | Location | Phone | Website |
|---|---|---|---|---|
| Blue Oak Counseling Services, Inc. | Counselor; Doctor; Me* | Ontario, CA | +1 909 *** **12 | blueoakcounselingserv* |
| Up Clinics | Urgent care center; M* | Ontario, CA | +1 909 *** **81 | — |
| Proactive Work Health Services-Work* | Occupational health s* | Ontario, CA | +1 909 *** **00 | proactivework.com |
| Southern California Orthopedic / He* | Orthopedic clinic; Do* | Ontario, CA | +1 909 *** **55 | healthpointe.net |
| Dr. Albert I. Kim | Family practice physi* | Ontario, CA | +1 909 *** **27 | — |
| Dr. Jose de la Llana MD | General practitioner;* | Ontario, CA | — | — |
| Ho Charles Y MD | Family practice physi* | Ontario, CA | +1 909 *** **88 | — |
| Concentra Urgent Care: Herrera Jr F* | Occupational medical * | Ontario, CA | +1 909 *** **80 | concentra.com |
| Reyes Soledad S MD | Family practice physi* | Ontario, CA | +1 909 *** **05 | — |
| Ruiz Ruben MD | Internist; Doctor; Me* | Ontario, CA | +1 909 *** **88 | — |
| Clinica Medica Familiar: Moreno Cyn* | Doctor | Ontario, CA | +1 909 *** **88 | cmfmedical.net |
| Dhaliwal Simmi P MD | Doctor | Ontario, CA | +1 909 *** **30 | femcareob-gyn.com |
| California Pain Regenerative & Well* | Medical spa; Hair rem* | Ontario, CA | +1 909 *** **74 | jdmdclinics.com |
| Centrelake Imaging - Ontario | Medical diagnostic im* | Ontario, CA | +1 909 *** **00 | centrelakeimaging.com |
| Dr. Teodoro G. Diaz III, Do | Family practice physi* | Ontario, CA | +1 909 *** **22 | — |
| AMIN S. ABDELMESEEH | Family practice physi* | Ontario, CA | +1 866 *** **10 | — |
| Marlon M. Farley | Family practice physi* | Ontario, CA | +1 909 *** **88 | — |
| Le Thang T MD | Doctor | Ontario, CA | +1 909 *** **62 | — |
| MIHIR KISHOR SANGHVI | Family practice physi* | Ontario, CA | +1 909 *** **31 | — |
| Nguyen Joseph T DO | Doctor | Ontario, CA | +1 909 *** **77 | — |
Page 1 of 5 · 83 rows
Pull a live list for doctors in Ontario
MapLeads extracts local businesses from Google Maps, Apple Maps, and Bing Maps— or delivers a ready email list pack when you want a file without running a job. Start a trial, run a real search, and export to CSV the same day.
Doctor in Ontario
Ontario, CA has 83 doctor businesses in the MapLeads maps index, making doctor the 9th largest vertical in the city (1.6% of Ontario's 5,326 businesses).
32.5% of those doctor rows carry a website — the enrichment pool for an email campaign in Ontario. Counts refresh with each index update.
The doctor market
This list captures individual physicians rather than the clinics or hospital systems employing them — family medicine, dermatology, and other specialties where independent practice still survives despite decades of hospital-system consolidation. Many entries are employed physicians whose purchasing authority is limited, alongside a smaller share of true practice owners. Specialty and employment status matter more here than in almost any other category on this list.
Ontario holds 0.0% of the 336,965 doctor businesses MapLeads tracks nationwide; within CA, Los Angeles leads the vertical at 653.
Ontario as a market
Ontario overall holds 5,326 businesses. Its largest verticals are Restaurant (419), Contractor (214), Dentist (148) — doctor sits further down the mix at 9th.
How to use this list
- Start with the 83 Ontario doctor rows below, then expand to nearby cities if volume runs short.
- Prefer rows with a website (32.5% of this market) for enrichment before cold email.
- Re-pull this city × industry cut after campaigns or quarterly — not the full national file every time.
FAQ: Ontario Doctor email list
How many doctor businesses are in Ontario?
Ontario, CA has 83 doctor businesses in the MapLeads maps index — 1.6% of the city's 5,326 total, with 32.5% carrying a website. Counts refresh with each index update.
Does "doctor" list individual physicians separately from the clinics or practices they work at?
Yes. This category tracks physician-level Maps listings, which is a different set of records from medical-clinic; a physician can appear here even if the practice they work at is also listed under medical-clinic.
How does Ontario compare with other CA cities for doctor?
Los Angeles leads CA with 653 doctor businesses; Ontario holds 83. Both city markets are linked below.