Active NPI
Justin Welsh, DO
- Internal Medicine Physician
- Mesa, AZ
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Internal Medicine Physician
- License
- 008375
- Practice address
- 5110 E Southern Ave
Mesa, AZ 85206-2791 - Phone
- (607) 737-4499
- Fax
- (415) 252-7176
- NPI assigned
- Mar 10, 2017
- Sex
- Male
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 8
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Internal Medicine Physician | 207R00000X | OP61607809 | WA | |
| Internal Medicine Physician | 207R00000X | 1021233 | MA | |
| Internal Medicine Physician | 207R00000X | 2024-03131 | NC | |
| Internal Medicine Physician | 207R00000X | V4523 | TX | |
| Internal Medicine Physician | 207R00000X | DR.0074143 | CO | |
| Internal Medicine Physician | 207R00000X | 103296 | GA | |
| Student in an Organized Health Care Education/Training Program | 390200000X | |||
| Internal Medicine Physician | 207R00000X | 008375 | AZ | Primary |
Addresses
Primary practice location
5110 E Southern Ave
Mesa, AZ 85206-2791
Mailing address
5110 E Southern Ave
Mesa, AZ 85206-2791
Other practice location 1
2038 Carlton Arms Cir
Bradenton, FL 34208-5067
Phone (308) 520-0641
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
Care Compare profile
Medicare Care Compare- Specialty
- Internal Medicine
- Education
- Other, 2017
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
5110 E Southern Ave
Suite 107
Mesa, AZ 85206-2790
Phone (888) 405-6396
Hospital & facility affiliations
- Dignity Health at Home
- 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 Osteopathy
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| DR.0074143 | CO | MD | Internal Medicine Physician |
| 103296 | GA | MD | Internal Medicine Physician |
| 1021233 | MA | MD | Internal Medicine Physician |
| 2024-03131 | NC | MD | Internal Medicine Physician |
| V4523 | TX | MD | Internal Medicine Physician |
| OP61607809 | WA | MD | Internal Medicine Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Iora Senior Health, LLC | Internal Medicine | Current | Accepting new patients |
| Iora Senior Health, LLC | Internal Medicine | Current | Accepting new patients |
| Iora Senior Health, LLC | Internal Medicine | Current | Accepting new patients |
| Iora Health, LLC | Internal Medicine | Past | Accepting new patients |
| Iora Senior Health, LLC | Internal Medicine | Past | Accepting new patients |
| Iora Health Massachusetts, P.C. | Internal Medicine | Past | Accepting new patients |
Locations
5110 E Southern Ave
Ste 107
Mesa, AZ 85206
Phone (480) 295-8072
3137 W Indian School Rd
Phoenix, AZ 85017
Phone (602) 325-5570
101 Tremont St
Fl 6
Boston, MA 02108
Organizations & group practices 6
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.
-
- Internal Medicine Physician
- Phoenix, AZ
- NPI 1619376456
-
- Internal Medicine Physician
- Mesa, AZ
- NPI 1700235751
-
- Internal Medicine Physician
- Arvada, CO
- NPI 1760867428
-
- Internal Medicine Physician
- Surprise, AZ
- NPI 1952896235
-
- Internal Medicine Physician
- Hyannis, MA
- NPI 1851858666
-
- Internal Medicine Physician
- Hanover, NH
- NPI 1700285616
Hospital & facility affiliations 2
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Mesa, AZ
- NPI 1720011810
-
- Home Health Agency
- Chandler, AZ
- NPI 1831678218
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1489104000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1748304000000",
"number": "1861933871",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "5110 E SOUTHERN AVE",
"city": "MESA",
"state": "AZ",
"postal_code": "852062791",
"fax_number": "415-252-7176"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "5110 E SOUTHERN AVE",
"city": "MESA",
"state": "AZ",
"postal_code": "852062791",
"telephone_number": "607-737-4499",
"fax_number": "415-252-7176"
}
],
"practiceLocations": [
{
"address_1": "2038 Carlton Arms Cir",
"address_purpose": "LOCATION",
"city": "Bradenton",
"state": "FL",
"postal_code": "342085067",
"country_code": "US",
"telephone_number": "308-520-0641",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "WELSH",
"first_name": "JUSTIN",
"name_prefix": "Dr.",
"credential": "DO",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2017-03-10",
"last_updated": "2025-05-27",
"certification_date": "2025-05-27",
"status": "A"
},
"taxonomies": [
{
"code": "207R00000X",
"taxonomy_group": "",
"desc": "Internal Medicine",
"state": "WA",
"license": "OP61607809",
"primary": false
},
{
"code": "207R00000X",
"taxonomy_group": "",
"desc": "Internal Medicine",
"state": "MA",
"license": "1021233",
"primary": false
},
{
"code": "207R00000X",
"taxonomy_group": "",
"desc": "Internal Medicine",
"state": "NC",
"license": "2024-03131",
"primary": false
},
{
"code": "207R00000X",
"taxonomy_group": "",
"desc": "Internal Medicine",
"state": "TX",
"license": "V4523",
"primary": false
},
{
"code": "207R00000X",
"taxonomy_group": "",
"desc": "Internal Medicine",
"state": "CO",
"license": "DR.0074143",
"primary": false
},
{
"code": "207R00000X",
"taxonomy_group": "",
"desc": "Internal Medicine",
"state": "GA",
"license": "103296",
"primary": false
},
{
"code": "390200000X",
"taxonomy_group": "",
"desc": "Student in an Organized Health Care Education/Training Program",
"state": null,
"license": null,
"primary": false
},
{
"code": "207R00000X",
"taxonomy_group": "",
"desc": "Internal Medicine",
"state": "AZ",
"license": "008375",
"primary": true
}
],
"identifiers": [],
"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 May 27, 2025; 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.