Active NPI
Gerard Brophy Chamberlin, MD
- Internal Medicine Physician
- Mesa, AZ
National Provider Identifier
1750503124
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Internal Medicine Physician
- License
- 41160
- Practice address
- 6242 E Arbor Ave
Ste 123
Mesa, AZ 85206 - Phone
- (480) 930-4600
- Fax
- (480) 930-4615
- NPI assigned
- May 3, 2007
- Sex
- Male
- Sole proprietor
- Yes
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Internal Medicine Physician | 207R00000X | 41160 | AZ | Primary |
| Pediatrics Physician | 208000000X | 41160 | AZ |
Addresses
Primary practice location
6242 E Arbor Ave
Ste 123
Mesa, AZ 85206
Mailing address
6242 E Arbor Ave Ste 123
Mesa, AZ 85206-1309
Phone (480) 930-4600
Other identifiers 1
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 407911 | Medicaid | AZ |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in AZ
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 1
| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| I20090826000130 | AZ | Practitioner - Internal Medicine | 8123173267 | Reassigns benefits to 2 organizations |
Care Compare profile
Medicare Care Compare- Specialty
- Internal Medicine
- Education
- University of Arizona College of Medicine, 2005
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Telehealth
- Offers telehealth services
Practice addresses (Care Compare)
6242 E Arbor Ave
Suite 123
Mesa, AZ 85206-1309
Phone (480) 930-4600
Hospital & facility affiliations
- Banner Home Care-Arizona
- Sunrise Health Services
- Endeavor Hospice
- Advisacare Hospice, LLC
- Banner Baywood Medical Center
- Banner Heart Hospital
- Banner Gateway Medical Center
- Mercy Gilbert Medical Center
- Banner Desert Medical Center
Procedures performed for Medicare patients
| Procedure | Number of procedures |
|---|---|
| Removal of skin lesions | 1-10 |
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 41160 | AZ | MD | Pediatrics Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Banner Hospital Based Physicians Arizona LLC | Current | Accepting new patients | |
| Banner Hospital Based Physicians Arizona LLC | Current | Accepting new patients | |
| Banner Hospital Based Physicians Arizona LLC | Current | Accepting new patients | |
| Banner Baywood Medical Center | Past | Accepting new patients |
Locations
2050 W Southern Ave
Apache Junction, AZ 85120
Phone (480) 237-3200
1800 E Florence Blvd
Casa Grande, AZ 85122
Phone (520) 381-6285
6644 E Baywood Ave
Mesa, AZ 85206
Phone (480) 321-2000
6750 E Baywood Ave
Mesa, AZ 85206
Phone (480) 854-5000
1111 E McDowell Rd
Phoenix, AZ 85006
Phone (602) 239-2000
37000 N Gantzel Rd
San Tan Valley, AZ 85140
Phone (480) 394-4000
Interoperability endpoints
- https://fhir4.healow.com/fhir/r4/HEFCDD/Endpoint/HEFCDD
Organizations & group practices 5
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.
-
- Multi-Specialty Clinic/Center
- San Tan Valley, AZ
- NPI 1275889891
AZ
-
- Multi-Specialty Clinic/Center
- Gilbert, AZ
- NPI 1124374822
-
- Critical Care Medicine (Internal Medicine) Physician
- Phoenix, AZ
- NPI 1780445171
-
- General Acute Care Hospital
- Mesa, AZ
- NPI 1194758284
Hospital & facility affiliations 9
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- Home Health Agency
- Gilbert, AZ
- NPI 1760449409
-
- Home Health Agency
- Sun City, AZ
- NPI 1023051927
-
- Community Based Hospice Care Agency
- Mesa, AZ
- NPI 1841881992
Hospice
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1178150400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1786924800000",
"number": "1750503124",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "6242 E ARBOR AVE STE 123",
"city": "MESA",
"state": "AZ",
"postal_code": "852061309",
"telephone_number": "480-930-4600",
"fax_number": "480-930-4615"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "6242 E ARBOR AVE",
"address_2": "STE 123",
"city": "MESA",
"state": "AZ",
"postal_code": "85206",
"telephone_number": "480-930-4600",
"fax_number": "480-930-4615"
}
],
"practiceLocations": [],
"basic": {
"last_name": "CHAMBERLIN",
"first_name": "GERARD",
"middle_name": "BROPHY",
"name_prefix": "Dr.",
"credential": "MD",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2007-05-03",
"last_updated": "2026-08-17",
"certification_date": "2026-08-17",
"status": "A"
},
"taxonomies": [
{
"code": "207R00000X",
"taxonomy_group": "",
"desc": "Internal Medicine",
"state": "AZ",
"license": "41160",
"primary": true
},
{
"code": "208000000X",
"taxonomy_group": "",
"desc": "Pediatrics",
"state": "AZ",
"license": "41160",
"primary": false
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "407911",
"state": "AZ"
}
],
"endpoints": [],
"other_names": []
}Other providers in Mesa, AZ
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 17, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.