Medical groups in Colton, CA
- Medical groups
- 19
- Multi-specialty
- 4
- Single-specialty
- 15
- More than one site
- 6
- 100+ physicians
- 1
There are 19 medical groups in Colton with a Medicare PAC ID. Quantum Healthcare Medical Associates Inc is the largest, with 297 California physicians, followed by Cal Med Physicians and Surgeons with 68. 74% of Colton groups are independent.
Find the decision makers at all 19 Colton medical groups
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Quantum Healthcare Medical Associates Inc is the largest medical group in Colton, with 297 physicians
Ranked by physicians with a California address linked to each group based in Colton. Cal Med Physicians and Surgeons is second with 68, and Valley Obstetrics and Gynecology Medical Group Inc third with 20. 1 Colton group has 100 or more physicians.
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Sort and filter all 19 Colton medical groups by specialty, parent organization, group size, EHR in use and decision makers in Dmand AI.
Showing 1 to 10 of 19 medical groups in Colton
Sources: Doctors and Clinicians National Downloadable File (CMS) and Dmand AI Affiliation Data
San Bernardino County has the most physicians in Colton medical groups, with 15 across 2 groups
Dmand AI maps every Colton medical group to its parent organization, up to the health system or platform at the top. 1 parent organizations have two or more Colton medical groups. Each clinician counts once per parent organization.
- San Bernardino County
- Arrowhead Radiology Medical Group
- Jeffrey Roberts, MD
See every medical group, site and clinician under San Bernardino County
Org Hierarchy Explorer maps every group, site of care and clinician under the parent, with the leaders at each group.
Source: Dmand AI Org Hierarchy Data
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Dmand AI maps the owners, administrators and physician leaders at each of the 19 Colton medical groups, with the parent organization above each one, and finds validated work emails and mobile numbers.
74% of Colton medical groups are independent, with no larger parent organization
A group counts as independent when no health system, platform or other organization sits above it in the org hierarchy. Every other group belongs to a larger organization.
Colton medical groups by ownership
- Independent14
- Health system or hospital1
- Community or government3
- Other organization1
Source: Dmand AI Org Hierarchy Data
11 Colton medical groups practice at a hospital site
Beyond their own offices, groups practice at the sites of care linked to them in the org hierarchy. A group can practice at several kinds of site, so the shares overlap.
Colton medical groups by site of care
- Hospitals11
Sources: Dmand AI Practice Data and Dmand AI Org Hierarchy Data
Primary care groups are the most common medical groups in Colton, with 5
Each group is counted once, under its main specialty. Anesthesia and pain groups are second, with 4, and 4 Colton groups are multi-specialty.
- Primary care5
- Anesthesia and pain4
- Behavioral and mental health3
- OB/GYN and women's health2
- ENT and audiology1
- Eye care1
- Radiology and imaging1
- Rehabilitation and therapy1
- General and specialty surgery1
Source: Dmand AI Professional Profile Data
552 California HCPs work in Colton medical groups, 445 of them physicians
Each clinician is counted once, across every Colton group they are linked to. Only clinicians with a California address are counted.
HCPs in Colton medical groups by type
- Physicians (MD, DO)445
- Nurses and nurse practitioners63
- Physician assistants15
- Non-clinical and support staff9
- Therapists (PT and OT)8
- Other HCPs12
Source: Dmand AI Affiliation Data
Each Colton medical group profile shows the parent, sites, clinicians and identifiers
- Clinicians and specialtiesA count by specialty and a sample of the group's cliniciansOn every profile
- Practice locationsMain site and a sample of practice locations, with a count of the restOn every profile
- Medicare Part B paymentsMedicare payments to the group, from CMSOn every profile
- Group NPI and Medicare PAC IDIdentifiers for matching records across sourcesOn every profile
- Parent organizationThe health system, platform or owner above the groupOn every profile
- Every clinician and siteThe full roster and every practice locationWith a free account
- Leader and clinician contactsWork emails and mobile numbers, found on request and then validatedWith a free account
- EHR used by the group's cliniciansThe EHR in use at the group's sitesWith a free account
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Sources: Doctors and Clinicians National Downloadable File (CMS), Medicare Physician & Other Practitioners (CMS) and Dmand AI Org Hierarchy Data
Sources for the Colton medical group directory
| Data on this page | Source |
|---|---|
| Medical groups, specialties and sites | Doctors and Clinicians National Downloadable File (CMS) and Dmand AI Professional Profile Data |
| Parent organizations and independence | Dmand AI Org Hierarchy Data |
| Physicians and HCPs | Dmand AI Affiliation Data |
| Group NPI and PAC ID | NPPES NPI Registry (CMS) and Doctors and Clinicians National Downloadable File (CMS) |
Data last refreshed October 2026Report an inaccuracyRemove my information
The directory lists groups based in Colton with a Medicare PAC ID.
FAQ
Frequently asked questions about medical groups in Colton
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
How many medical groups are in Colton?
There are 19 medical groups based in Colton with a Medicare PAC ID: 4 multi-specialty and 15 single-specialty. 6 of them have more than one site.
What is the largest medical group in Colton?
Quantum Healthcare Medical Associates Inc, with 297 physicians and 316 HCPs with a California address. Cal Med Physicians and Surgeons is second with 68, and Valley Obstetrics and Gynecology Medical Group Inc is third with 20.
How many Colton medical groups are independent?
14, or 74%, have no larger parent organization in the Dmand AI org hierarchy. 1 belong to a health system or hospital.
How many Colton medical groups practice at a hospital?
11 Colton groups practice at a hospital site linked to them in the Dmand AI org hierarchy.
How do I find a medical group's NPI or PAC ID?
Each medical group profile lists the group NPI and Medicare PAC ID at the top, with the main address and phone number. The NPI comes from the NPPES NPI Registry and the PAC ID from CMS Medicare enrollment.
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