Active NPI
Josiah Aaron Valk, DO
- Orthopaedic Surgery Physician
- San Diego, CA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Orthopaedic Surgery Physician
- License
- 20A22266
- Practice address
- 4445 Eastgate Mall Ste 105
San Diego, CA 92121-1979 - Phone
- (619) 229-5018
- NPI assigned
- May 22, 2019
- Last updated
- Jul 9, 2025
- 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 3
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Orthopaedic Surgery Physician | 207X00000X | 5151013492 | MI | |
| Orthopaedic Surgery Physician | 207X00000X | 5101026685 | MI | |
| Orthopaedic Surgery Physician | 207X00000X | 20A22266 | CA | Primary |
Addresses
Primary practice location
4445 Eastgate Mall Ste 105
San Diego, CA 92121-1979
Mailing address
5057 Mission Blvd
San Diego, CA 92109-1752
Phone (269) 501-9929
Other practice location 1
28050 Grand River Ave
Farmington Hills, MI 48336-5919
Phone (269) 501-9929
Other practice location 2
10000 Telegraph Rd Ste 100
Taylor, MI 48180-3330
Phone (313) 887-6000
Other practice location 3
6 Longmeadow Village Dr Ste 1
Niles, MI 49120-7810
Phone (269) 684-6484
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in MI, CA
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 2
Care Compare profile
Medicare Care Compare- Specialty
- Orthopedic Surgery
- Education
- Michigan State University College of Osteopathic Medicine, 2019
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
183 Peace Blvd
Saint Joseph, MI 49085-9146
Phone (269) 428-3500
6 Longmeadow Village Dr
Suite 1
Niles, MI 49120-7810
Phone (269) 684-6484
Hospital & facility affiliations
Merit-based Incentive Payment System (MIPS)
- Final score
- 100 of 100
- Promoting interoperability
- 99
- Improvement activities
- 40
Merit-based Incentive Payment System (MIPS)
- Final score
- 84.37 of 100
- Quality
- 66.73
- Promoting interoperability
- 100
- Improvement activities
- 40
- Cost
- 70.98
Procedures performed for Medicare patients
| Procedure | Number of procedures |
|---|---|
| Hip replacement | 1-10 |
| Knee replacement | 1-10 |
| Lower limb (leg) arthroscopy (minimally invasive joint repair) | 1-10 |
| Upper limb (arm) arthroscopy (minimally invasive joint repair) | 23 |
| Removal of tissue | 1-10 |
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Osteopathy
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 20A22266 | CA | MD | Orthopaedic Surgery Physician |
| 5101026685 | MI | MD | Orthopaedic Surgery Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Southwest Michigan Center for Orthopaedic and Sports Medicine P | Current | Accepting new patients | |
| Synergy Orthopedic Specialists, Inc. | Current | Accepting new patients | |
| Synergy Orthopedic Specialists, Inc. | Orthopaedic Surgery | Current | Accepting new patients |
| Lakeland Medical Practices | Current | Accepting new patients | |
| Lakeland Medical Practices | Current | Accepting new patients | |
| Beaumont Medical Group- Specialty Services | Current | Accepting new patients | |
| Oakwood Healthcare Inc | Past | Accepting new patients |
Locations
88 E Bonita Rd
Ste C
Chula Vista, CA 91910
Phone (619) 230-0855
4445 Eastgate Mall
Ste 103
San Diego, CA 92121
Phone (858) 450-7118
4445 Eastgate Mall
Ste 105
San Diego, CA 92121
Phone (858) 357-9450
4910 Directors Pl
Ste 350
San Diego, CA 92121
Phone (858) 346-7171
28050 Grand River Ave
Farmington Hills, MI 48336
Phone (248) 471-8000
28100 Grand River Ave
Ste 301
Farmington Hills, MI 48336
Phone (947) 521-1320
6 Longmeadow Village Dr
Ste 1
Niles, MI 49120
Phone (269) 684-3028
183 Peace Blvd
Saint Joseph, MI 49085
Phone (269) 408-1636
3950 Hollywood Rd
Ste 280
Saint Joseph, MI 49085
Phone (269) 408-0990
26901 Beaumont Blvd
Ste 3D
Southfield, MI 48033
Phone (947) 522-1860
10000 Telegraph Rd
Ste 100
Taylor, MI 48180
Phone (313) 887-6000
Interoperability endpoints
- jvalk1259846@epic00.shdirect.org
Organizations & group practices 7
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.
-
dba Corewell Health Medical Group South
- Internal Medicine Physician
- Saint Joseph, MI
- NPI 1538397120
-
- Specialist
- Saint Joseph, MI
- NPI 1104913094
-
- Specialist
- San Diego, CA
- NPI 1114282779
-
- Surgery Physician
- Royal Oak, MI
- NPI 1578072906
-
dba Corewell Health Medical Group South
- Internal Medicine Physician
- Bridgman, MI
- NPI 1568232247
-
dba Corewell Health Retail Pharmacy Westland
- Community/Retail Pharmacy
- Westland, MI
- NPI 1033128178
Hospital & facility affiliations 2
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
dba Corewell Health Lakeland Hospitals
- General Acute Care Hospital
- Saint Joseph, MI
- NPI 1134220031
-
dba Corewell Health Lakeland Hospitals St. Joseph Hospital
- Home Health Agency
- Benton Harbor, MI
- NPI 1912094525
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1558483200000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1752019200000",
"number": "1619534963",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "5057 MISSION BLVD",
"city": "SAN DIEGO",
"state": "CA",
"postal_code": "921091752",
"telephone_number": "269-501-9929"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "4445 EASTGATE MALL STE 105",
"city": "SAN DIEGO",
"state": "CA",
"postal_code": "921211979",
"telephone_number": "619-229-5018"
}
],
"practiceLocations": [
{
"address_1": "28050 Grand River Ave",
"address_purpose": "LOCATION",
"city": "Farmington Hills",
"state": "MI",
"postal_code": "483365919",
"country_code": "US",
"telephone_number": "269-501-9929",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "10000 Telegraph Rd Ste 100",
"address_purpose": "LOCATION",
"city": "Taylor",
"state": "MI",
"postal_code": "481803330",
"country_code": "US",
"telephone_number": "313-887-6000",
"fax_number": "313-887-6005",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "6 Longmeadow Village Dr Ste 1",
"address_purpose": "LOCATION",
"city": "Niles",
"state": "MI",
"postal_code": "491207810",
"country_code": "US",
"telephone_number": "269-684-6484",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "VALK",
"first_name": "JOSIAH",
"middle_name": "AARON",
"name_prefix": "Dr.",
"credential": "DO",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2019-05-22",
"last_updated": "2025-07-09",
"certification_date": "2025-07-09",
"status": "A"
},
"taxonomies": [
{
"code": "207X00000X",
"taxonomy_group": "",
"desc": "Orthopaedic Surgery",
"state": "MI",
"license": "5151013492",
"primary": false
},
{
"code": "207X00000X",
"taxonomy_group": "",
"desc": "Orthopaedic Surgery",
"state": "MI",
"license": "5101026685",
"primary": false
},
{
"code": "207X00000X",
"taxonomy_group": "",
"desc": "Orthopaedic Surgery",
"state": "CA",
"license": "20A22266",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in San Diego, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 9, 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.