Dr. Josiah Valk, D.O.

Orthopedic Surgery

17 procedures1 hospitalSan Diego, CAUpdated May 2026

Contact & Location

619-229-5018
Phone: 619-229-5018
Practice phone listed in the NPI registry
4445 Eastgate Mall Ste 105
San Diego, CA 92121
Current practice address per the CMS NPPES registry (self-reported to the registry, last updated July 2025). Registry checked August 2026.
Other locations registered to this NPI:
28050 Grand River Ave
Farmington Hills, MI 48336
10000 Telegraph Rd Ste 100
Taylor, MI 48180
6 Longmeadow Village Dr Ste 1
Niles, MI 49120
Additional practice sites listed in the surgeon's own CMS NPPES registry entry. The registry does not record which site a surgeon primarily works from, so call ahead to confirm where an appointment takes place.
NPI: 1619534963
Credentials: D.O.
Active Medicare provider (NPI verified)
7 years of practice experience
Licensed D.O.
Licensed surgical specialist
Board-certified orthopedic surgeon
Contact information available
Find Practice on Google Maps
National Comparison by Procedure
Shoulder 17 vs 29 national avg 0.6x
avg

Compared with 2,217 shoulder surgeons in the 2024 Medicare dataset.

Dr. Valk performs more shoulder replacement procedures than 33% of orthopedic surgeons in California, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #93 of 139 ranked shoulder surgeons in California.

About Dr. Valk

Practice. Dr. Josiah Valk is a board-certified orthopedic surgeon practicing in San Diego, California. The latest annual CMS data records 17 shoulder replacements. That is #93 in California for shoulder replacement. A Medicare provider since 2019.

Trend. Dr. Valk first appears in the Medicare data in 2024. With 1 year on record, the trend is still short.

National context. Among 2,217 shoulder replacement surgeons tracked nationally, 17 procedures is below the national average of 29. Medicare covers part of all joint replacements, so true volume is likely higher.

Local context. San Diego has 31 orthopedic surgeons in the current Medicare data. Comparing volume and procedure mix across them is one way to narrow a shortlist.

Verified Medicare Cases

Shoulder Replacement
17 verified cases
#93 in California
Estimated 2024 total: 50 – 60 procedures (all insurers)
Medicare fee-for-service share of national volume in 2024: 29% to 37% for shoulder replacement
How is this estimated?

Medicare Part B fee-for-service claims are one payer stream among several, and the share they represent differs by procedure. In 2024 it was 29% to 37% for shoulder replacement. Each verified count above is divided by its own procedure's range, and the results are added, to estimate total practice volume across all payers. The verified Medicare count is the definitive, audited figure; this is a range derived from published national volume projections, not a measurement, and an individual practice can sit well outside it: how these ranges are derived, and their sources.

How Dr. Valk Compares

Procedure volume compared to the California state average.

Shoulder Below Avg
17 Avg: 31
Dr. Valk California Average

Hospital Affiliations & Quality

H
Corewell Health Lakeland Hospitals St Joseph Hospi
4/5
St Joseph, MI
Low case volume

Quality ratings and complication rates are hospital-level metrics from CMS Hospital Compare and do not reflect individual surgeon performance. Star ratings updated quarterly. Complication data covers a rolling 3-year period.

Patient Resources: Preparing for Shoulder Replacement

If you are considering shoulder replacement surgery, these evidence-based guides can help you prepare and recover:

Shoulder Replacement Recovery Overview

Recovery timelines vary by patient, but here is a general overview of what to expect after shoulder replacement surgery:

Week 1-3 Arm in a sling for protection. Gentle pendulum exercises under therapist guidance. Focus on pain management and wound care.
Week 4-6 Gradual sling weaning. Begin passive and active-assisted range-of-motion exercises. Light daily activities resume.
Week 7-12 Active range-of-motion exercises. Light strengthening begins. Most patients can drive and perform desk work.
Month 4-6 Progressive strengthening continues. Return to most activities. Full recovery may take 6-12 months for complete shoulder strength.

Individual recovery varies based on overall health, age, and adherence to physical therapy. View full shoulder replacement recovery guide and product recommendations

Frequently Asked Questions About Dr. Valk

How does Dr. Valk's procedure volume compare to other California surgeons?

Dr. Valk has performed 17 Medicare-verified joint replacement procedures. The California average is 68 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. Valk ranks #502 out of 613 orthopedic surgeons in California.

What types of joint replacement does Dr. Valk perform?

Dr. Valk's reported Medicare volume is focused on shoulder replacement, with 17 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.

Are there other orthopedic surgeons near Dr. Valk in San Diego?

Yes. There are 31 orthopedic surgeons in San Diego in the current Medicare dataset. Patients can compare procedure volumes and specializations to choose the surgeon who best fits their needs. Use the state page to view all California surgeons.

What does the Medicare data for Dr. Valk represent?

The procedure counts shown are based on 2024 Medicare Part B fee-for-service claims data, published by the Centers for Medicare and Medicaid Services (CMS). Medicare fee-for-service is only one payer stream, and the share of national volume it represents differs by procedure. In 2024 the share was 29% to 37% for shoulder replacement, which puts Dr. Valk's total volume across all insurers at roughly 50 to 60 procedures against the 17 verified here. Those shares are derived from published national volume projections rather than quoted from a single publication, and they are estimates with real uncertainty. The OrthoProcedures methodology page shows the full derivation, the sources, and the limits at orthoprocedures.com/data-methodology.html.

Which hospitals is Dr. Valk affiliated with?

According to CMS facility affiliation data, Dr. Valk is affiliated with Corewell Health Lakeland Hospitals St Joseph Hospi. Dr. Valk maintains hospital privileges across state lines, indicating a practice that serves patients in multiple states.

How does Dr. Valk compare to other orthopedic surgeons in San Diego?

Among the 31 orthopedic surgeons in San Diego, Dr. Valk ranks #23 by total Medicare procedure volume. The highest-volume surgeon in San Diego has 253 verified Medicare procedures.

What are the quality ratings for hospitals where Dr. Valk practices?

Corewell Health Lakeland Hospitals St Joseph Hospi (4 out of 5 CMS stars, insufficient case volume for complication rate comparison). These are hospital-level quality metrics from CMS Hospital Compare and do not reflect individual surgeon outcomes.

Other Orthopedic Surgeons in San Diego, California

Dr. Valk's 17 Medicare procedures are below the San Diego average of 113. The table below compares verified procedure volumes for orthopedic surgeons practicing in San Diego.

SurgeonProceduresSpecialties
Dr. Scott Ball 253 Hip, Knee
Dr. Francis Gonzales 155 Hip, Knee
Dr. Ameer Elbuluk 97 Hip, Knee
Dr. Thomas Nguyen 93 Knee
Dr. Daljeet Sagoo 88 Hip, Knee
Dr. David Fabi 87 Hip, Knee

Patient Resources & Verification

Research reviews, verify credentials, and check official quality data through these trusted sources:

Medicare Care Compare and NPI Registry are official U.S. government sources. Google reviews reflect user-submitted feedback. OrthoProcedures.com does not verify the accuracy of third-party review content.

Cite This Data

APA: OrthoProcedures. (2026). Dr. Josiah Valk, D.O. -- Orthopedic Surgeon Profile. Retrieved from https://orthoprocedures.com/surgeons/ca/dr-josiah-valk-san-diego.html

Link: https://orthoprocedures.com/surgeons/ca/dr-josiah-valk-san-diego.html

Data source: CMS Medicare Part B Provider Utilization & Payment Data. Full methodology | Open Data API

Important: Rankings are based solely on Medicare procedure volume and do not reflect quality of care, patient outcomes, or procedures covered by private insurance. This data represents approximately one-third to 40% of all joint replacement procedures nationwide. Always consult with healthcare providers to make informed decisions about your care.