DR. JOSIAH AARON VALK DO
NPI 1619534963
Orthopaedic Surgery in San Diego, CA
About Dr. Josiah Aaron Valk Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOSIAH AARON VALK DO (NPI 1619534963) is an individual orthopaedic surgery provider in San Diego, California, licensed in California (20A22266) and active in the NPI registry since May 2019. He is enrolled in Medicare PECOS, is affiliated with Lakeland Hospital, St Joseph, and maintains 3 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 3
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Josiah Aaron Valk Do is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Areas of Expertise CMS Part B claims 2
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Lakeland Hospital, St Joseph
Acute Care Hospitals · St Joseph, MIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 92121 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 5
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAN DIEGO, CA 92121
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Josiah Valk's NPI number?
The NPI number for Josiah Valk is 1619534963. It was assigned to this individual provider in the NPPES registry on May 22, 2019.
Where is Josiah Valk located?
Josiah Valk practices at 4445 Eastgate Mall Ste 105, San Diego, CA 92121. The listed phone number is (619) 229-5018.
What is Josiah Valk's specialty?
The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.
Is Josiah Valk enrolled in Medicare?
Yes. Josiah Valk is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
What insurance does Josiah Valk accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company and 1 other insurer list Josiah Valk as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Josiah Valk affiliated with any hospitals?
According to CMS data, Josiah Valk is affiliated with Lakeland Hospital, St Joseph.
When was this NPI record last updated?
The NPPES record for Josiah Valk was last updated on July 9, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Josiah Aaron Valk, DO · NPI 1619534963
Orthopaedic Surgery physician in San Diego, California. Individual provider, active in the CMS NPPES registry since May 22, 2019.
## Identity
- **NPI:** 1619534963 (Entity type: Individual)
- **Enumerated:** May 22, 2019
- **Primary specialty:** Orthopaedic Surgery · taxonomy 207X00000X
- **State license:** 20A22266 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 4445 EASTGATE MALL STE 105, San Diego, CA 92121-1979
- **Phone:** (619) 229-5018
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Medical school:** Michigan State University College Of Osteopathic Medicine, class of 2019
## Record status
- **NPPES last updated:** July 9, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1619534963) · Data from the CMS NPPES public registry.