Bone MarrowBone SubstitutesLumbar Vertebrae
Dr. John Stephen Locke, MD
NPI1467520189PAC ID8224093703
- Medicare services, 2024
- 266
- Medicare patients, 2024
- 85
- Part D claims, 2024
- 24
- Publications
- 7
- MIPS score, 2024
- 100
- Practice address
- 28078 Baxter Road, Murrieta, CA 92563
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Pet CT Pob - Positron Emission Tomography, Computed Tomography Professional Office Building - HOPD
Acute Care Hospital outpatient department · Murrieta, California
Find Dr. Locke's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. John Stephen Locke is an orthopedic surgeon in Murrieta, California
Dr. Locke practices at Pet CT Pob - Positron Emission Tomography, Computed Tomography Professional Office Building - HOPD in Murrieta, California.
Dr. Locke's NPI, 1467520189, was assigned on December 1, 2006. Dr. Locke graduated from Uniformed Services University, F. Edward Hebert School of Medicine in 1991. Dr. Locke holds California license G77841.
NPI and contact details
- NPI
- 1467520189NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8224093703
- NPI enumeration date
- December 1, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 66
- Medical school graduation
- 1991
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John Stephen Locke practices at Pet CT Pob - Positron Emission Tomography, Computed Tomography Professional Office Building - HOPD in Murrieta, California
Dr. Locke's primary practice is Pet CT Pob - Positron Emission Tomography, Computed Tomography Professional Office Building - HOPD, at 28078 Baxter Road, Murrieta, CA 92563.
- Pet CT Pob - Positron Emission Tomography, Computed Tomography Professional Office Building - HOPD28078 Baxter Road, Murrieta, CA 92563
Source: Dmand AI Affiliation Data
Dr. John Stephen Locke is affiliated with 3 sites of care and 2 medical groups
Dr. Locke's primary practice is Pet CT Pob - Positron Emission Tomography, Computed Tomography Professional Office Building - HOPD in Murrieta, California. The medical group on file is United Medical Doctors. Dmand AI also links Dr. Locke to 2 more group practices and clinics and 1 medical group, each named with a free account.
Pet CT Pob - Positron Emission Tomography, Computed Tomography Professional Office Building - HOPDPrimary
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. John Stephen Locke's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Locke practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Pet CT Pob - Positron Emission Tomography, Computed Tomography Professional Office Building - HOPD | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John Stephen Locke is one of 2,056 orthopedic surgeons in California
Orthopaedic surgery is Dr. Locke's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Locke is board certified in orthopaedic sports medicine by the American Board of Orthopaedic Surgery. Dr. Locke is licensed in California.
Specialties and state licenses
- Orthopaedic surgery, CaliforniaPrimary
Clinical focus
Dmand AI lists arthritis, bursitis, carpal tunnel syndrome, hand joint or tendon inflammation, joint pain, knee arthroscopy, knee injury and knee replacement among the conditions Dr. Locke treats.
Orthopedic surgeons near Dr. Locke
Counts of orthopedic surgeons with a Dmand AI profile, by place and practice. Each opens the list.
2,056orthopedic surgeons in California
6orthopedic surgeons in Murrieta
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. John Stephen Locke billed Medicare for 266 services in 2024
CMS data shows 266 Medicare services from Dr. Locke across 4 procedure codes in 2024, for 85 Medicare patients. Medicare paid $33,944 for them.
Medicare services, 2024266
Medicare patients85
Paid by Medicare$33,944
Procedure codes4
Dr. Locke's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1662024: 24246%
- Surgery
- 2023: 822024: 2471%
- Drugs given in the office
- 2023: 992024: 0100%
- Imaging
- 2023: 152024: 0100%
Where Dr. Locke's Medicare services took place, 2024
- In an office24291%
- In a facility249%
Dr. Locke compared with the California median for orthopedic surgeons, 2024
- Dr. Locke
- California median
- Medicare services
- 266vs 68361% below
- Medicare patients
- 85vs 21560% below
- Part D claims
- 61vs 7013% below
Medians across 1,844 orthopedic surgeons in California with Dmand AI profiles that report each measure.
Dr. Locke's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Locke?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Locke and other orthopedic surgeons in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Stephen Locke treated 85 Medicare patients in 2024, average age 73
CMS counts 85 Medicare patients who saw Dr. Locke in 2024. The largest group is 65 to 74, with 46 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.12, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Locke's median patient age at 61, with 50% women.
Medicare patients, 202485
Average age73
Average risk score1.12
Dr. Locke's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Locke's Medicare patients by sex, 2024
- Women5059%
- Men3541%
Chronic conditions among Dr. Locke's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis64%
- Diabetes32%
- Mood disorders25%
- Chronic kidney disease22%
- Depression22%
- Ischemic heart disease22%
Share of Medicare patients with each condition. A patient can have several.
Dr. Locke's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 61
Patient panel by sex, all payers
- Women50%
- Men49%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John Stephen Locke wrote 24 Medicare Part D claims in 2024
In 2024, Dr. Locke wrote 24 Medicare Part D claims for 13 patients. 100% of them were for generic drugs. They cover 3 drugs, with $550 in total drug cost. In 2022, CMS named 107 claims across 4 drugs.
Part D claims, 202424
Drugs named by CMS3
Total drug cost$550
Part D patients13
Dr. Locke's most prescribed drugs by claims, 2023
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Locke's Part D claims, 2024
- Opioids58%14 of 24 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 1072023: 6143%
Drugs named by CMS: 3 in 2023, 4 in 2022.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. John Stephen Locke scored 100 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Dr. Locke for performance year 2024, reported as part of a group. Dr. Locke accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 11 procedures of lower limb (leg) arthroscopy (minimally invasive joint repair) by Dr. Locke, more than 81% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Locke's MIPS scores, performance year 2024
- 100of 100Final score
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Locke ranks in Medicare procedure volume
- Lower limb (leg) arthroscopy (minimally invasive joint repair)
- 81st percentile11 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. John Stephen Locke has 7 publications on record
Dmand AI links 7 papers to Dr. Locke, published from 2015 to 2021. 2015 was the busiest year, with 3. The most frequent topics are Spinal Fusion, Lumbar Vertebrae and Rats, Inbred Lew. Dr. Locke's most frequent co-authors are Benjamin Daniel Elder, MD, PhD, Timothy Witham, MD and Sheng-Fu Larry Lo, MD, MHS.
Papers7
Years published2015 to 2021
Dr. Locke's papers by year, 2015 to 2021
Topics Dr. Locke writes about most
- Spinal Fusion
- Lumbar Vertebrae
- Rats, Inbred Lew
- Bone Transplantation
- Ilium
- Osteogenesis
Dr. Locke's most frequent co-authors
- Benjamin Daniel Elder, MD, PhD7 shared papers
- Timothy Witham, MD5 shared papers
- Sheng-Fu Larry Lo, MD, MHS4 shared papers
Recent publications by Dr. Locke
J Orthop Surg Res
AllograftsAutograftsBone Marrow Cells
Bone Morphogenetic Protein 2Bone Morphogenetic ProteinsBone Transplantation
Neurosurg Rev
Cervical VertebraeDiffusion Chambers, CultureInternal Fixators
Ann Biomed Eng
Platelet-Rich PlasmaSpinal Fusion
See who Dr. Locke researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Locke works with, so you can find a warm path to the right orthopedic surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. John Stephen Locke received $4,641 in industry payments from 2016 to 2025
CMS Open Payments shows 57 general payments to Dr. Locke from 19 drug and device companies from 2016 to 2025. Travel and lodging make up the largest share, 36% of the total. Encore Medical, LP paid the most, $2,514.
General payments to Dr. Locke by program year, 2016 to 2025
General payments to Dr. Locke by kind, 2016 to 2025
$4.6Kin total
- Travel and lodging$1,65636%
- Honoraria$1,50032%
- Food and beverage$1,48432%
Companies that paid Dr. Locke the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John Stephen Locke graduated from Uniformed Services University, F. Edward Hebert School of Medicine
Dr. Locke graduated from Uniformed Services University, F. Edward Hebert School of Medicine in 1991.
- Medical school
- Board certified in orthopaedic sports medicine
- Board certified in orthopaedic surgery
Source: Dmand AI Professional Profile Data
Dr. John Stephen Locke accepts plans from 16 insurance carriers
Dr. Locke is in network with 16 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Blue Cross Blue Shield of Michigan
- United Healthcare
- HCSC
- Blue Cross Blue Shield of Massachusetts
- Molina
- Regence Health Plans
- +8 more carriersWith a free account
Plan types Dr. Locke accepts, by number of carriers
- PPO10
- Medicare9
- HMO7
- POS5
- EPO4
Source: Dmand AI Insurance Network Data
Sources for Dr. John Stephen Locke's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. John Stephen Locke
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. John Stephen Locke's NPI number?
Dr. John Stephen Locke's NPI number is 1467520189. It was assigned on December 1, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. John Stephen Locke?
Dr. John Stephen Locke is an orthopedic surgeon in Murrieta, California. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. John Stephen Locke practice?
Dr. Locke practices at 28078 Baxter Road, Murrieta, CA 92563. Dr. Locke's primary practice is Pet CT Pob - Positron Emission Tomography, Computed Tomography Professional Office Building - HOPD in Murrieta, California. Dmand AI also links Dr. Locke to 2 group practices and clinics and 1 medical group.
What is Dr. John Stephen Locke's medical license number?
Dr. Locke holds California license G77841.
What medical group is Dr. John Stephen Locke part of?
Dr. Locke is linked to United Medical Doctors. Dmand AI links Dr. Locke to 1 more medical group.
Does Dr. John Stephen Locke accept Medicare?
Yes. CMS data shows Dr. Locke billed Medicare for 266 services in 2024, and Dr. Locke accepts Medicare assignment.
What is Dr. John Stephen Locke's MIPS score?
Dr. Locke's MIPS final score for performance year 2024 is 100 out of 100, reported as part of a group.
How many Medicare patients does Dr. John Stephen Locke see?
CMS counts 85 Medicare patients who saw Dr. Locke in 2024, with an average age of 73.
Is Dr. John Stephen Locke board certified?
Yes. Dr. Locke is board certified in orthopaedic sports medicine by the American Board of Orthopaedic Surgery.
What services does Dr. John Stephen Locke bill to Medicare?
In 2024, Dr. Locke's most billed Medicare services were office visit, established patient (99214), office visit, new patient (99204) and surgery: bones and joints (29881).
Show 7 more questionsShow fewer questions
Where did Dr. John Stephen Locke go to medical school?
Dr. Locke graduated from Uniformed Services University, F. Edward Hebert School of Medicine in 1991.
What drugs does Dr. John Stephen Locke prescribe most?
In 2023 Medicare Part D data, Dr. Locke's most prescribed drugs by claims were Hydrocodone-Acetaminophen, Oxycodone-Acetaminophen and Clindamycin HCl.
Has Dr. John Stephen Locke received payments from drug or device companies?
CMS Open Payments shows $4,641 in general payments to Dr. Locke from 19 companies from 2016 to 2025. The largest total came from Encore Medical, LP.
How long has Dr. John Stephen Locke been practicing?
Dr. Locke graduated from medical school in 1991, 35 years ago.
Does Dr. John Stephen Locke do research?
Dmand AI links 7 publications to Dr. Locke, published from 2015 to 2021.
Who does Dr. John Stephen Locke publish with?
Dr. Locke's most frequent co-authors are Benjamin Daniel Elder, MD, PhD (7 shared papers), Timothy Witham, MD (5 shared papers) and Sheng-Fu Larry Lo, MD, MHS (4 shared papers).
What insurance does Dr. John Stephen Locke accept?
Dr. Locke is in network with 16 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.
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