Dr. Lawrence R. Walker, MD
- Medicare services, 2024
- 2,663
- Medicare patients, 2024
- 254
- Part D claims, 2024
- 2,564
- MIPS score, 2024
- 75
- Hospital affiliations
- 2
- Practice address
- 2131 Elks Dr 201 Arrowhead Orthopaedics, San Bernardino, CA 92404-5572
- Practice phone
- Call (909) 726-6100
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Arrowhead Orthopaedics
Multi-specialty group site · San Bernardino, California
Find Dr. Walker'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. Lawrence R. Walker is an orthopedic surgeon in San Bernardino, California
Dr. Walker practices at Arrowhead Orthopaedics in San Bernardino, California.
Dr. Walker's NPI, 1083619910, was assigned on June 16, 2005. Dr. Walker graduated from VCU School of Medicine in 1978. Dr. Walker holds California license C42773.
- NPI
- 1083619910NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1850349309
- NPI enumeration date
- June 16, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (909) 726-6100
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 74
- Medical school graduation
- 1978
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Lawrence R. Walker practices at Arrowhead Orthopaedics in San Bernardino, California
Dr. Walker's primary practice is Arrowhead Orthopaedics, at 2131 Elks Dr 201 Arrowhead Orthopaedics, San Bernardino, CA 92404-5572. The practice phone is (909) 726-6100.
- Arrowhead Orthopaedics2131 Elks Dr 201 Arrowhead Orthopaedics, San Bernardino, CA 92404-5572Phone(909) 726-6100
Source: Dmand AI Affiliation Data
Dr. Lawrence R. Walker is affiliated with 5 sites of care and 1 medical group
Dr. Walker's primary practice is Arrowhead Orthopaedics in San Bernardino, California. Dr. Walker is also affiliated with Dignity Health - St. Bernardine Medical Center. The medical group on file is Arrowhead Orthopaedics. Dmand AI also links Dr. Walker to 1 more hospital and 2 home health agencies, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Lawrence R. Walker's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Walker practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Arrowhead Orthopaedics | Available with a free account |
| +4 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Lawrence R. Walker is one of 2,056 orthopedic surgeons in California
Orthopaedic surgery is Dr. Walker's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Walker is board certified in orthopaedic surgery by the American Board of Orthopaedic Surgery. Dmand AI has Dr. Walker's licenses on file in 3 states: California, Texas and Georgia.
Specialties and state licenses
- Orthopaedic surgery, CaliforniaPrimary
- Texas license
- Georgia license
Clinical focus
Dmand AI lists arm, wrist, hand fracture and dislocation, arthritis, bursitis, carpal tunnel syndrome, enthesopathy in arms, fluid in a joint, hand joint or tendon inflammation and hip replacement among the conditions Dr. Walker treats.
Orthopedic surgeons near Dr. Walker
Counts of orthopedic surgeons with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Lawrence R. Walker billed Medicare for 2,663 services in 2024
CMS data shows 2,663 Medicare services from Dr. Walker across 13 procedure codes in 2024, for 254 Medicare patients. Medicare paid $119,927 for them.
Dr. Walker's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 1,5242024: 1,5081%
- Office and hospital visits
- 2023: 5892024: 6175%
- Surgery
- 2023: 3382024: 3617%
- Imaging
- 2023: 1162024: 17753%
Where Dr. Walker's Medicare services took place, 2024
- In an office2,652100%
- In a facility110%
Dr. Walker compared with the California median for orthopedic surgeons, 2024
- Dr. Walker
- California median
- Medicare services
- 2,663vs 6833.9 times
- Medicare patients
- 254vs 21518% above
- Part D claims
- 2,466vs 7035.2 times
Medians across 1,844 orthopedic surgeons in California with Dmand AI profiles that report each measure.
Dr. Walker'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.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Lawrence R. Walker treated 254 Medicare patients in 2024, average age 73
CMS counts 254 Medicare patients who saw Dr. Walker in 2024. The largest group is 75 to 84, with 96 patients. 75% of them have arthritis, and 70% have high blood pressure. 43% are also on Medicaid. Their average risk score is 1.37, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Walker's median patient age at 68, with 62% women.
Dr. Walker's Medicare patients by age, 2024
Dr. Walker's Medicare patients by sex, 2024
- Women15059%
- Men10441%
Chronic conditions among Dr. Walker's Medicare patients, 2024
- Arthritis75%
- High blood pressure70%
- High cholesterol60%
- Diabetes32%
- Mood disorders29%
- Anxiety26%
- Depression25%
- Chronic kidney disease21%
Share of Medicare patients with each condition. A patient can have several.
Dr. Walker's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women62%
- Men38%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Lawrence R. Walker wrote 2,564 Medicare Part D claims in 2024
In 2024, Dr. Walker wrote 2,564 Medicare Part D claims for 365 patients. 99% of them were for generic drugs. CMS names the drug for 2,466 of them, across 23 drugs with 11 or more claims each, at $56,657 in total drug cost. In 2023, CMS named 2,171 claims across 25 drugs.
Dr. Walker's Part D claims by kind of drug, 2024
- Generic2,533 claims99%
- Brand-name31 claims1%
Dr. Walker's most prescribed drugs by claims, 2024
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. Walker's Part D claims, 2024
- Opioids64%1,651 of 2,564 claims
- Antibiotics5%120 of 2,564 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, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 2,1712024: 2,46614%
Drugs named by CMS: 23 in 2024, 25 in 2023.
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. Lawrence R. Walker scored 75 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 75 out of 100 for Dr. Walker for performance year 2024, reported individually. Dr. Walker accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 12 procedures of knee replacement by Dr. Walker, more than 39% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- MIPS final score, 2024
- 75 of 100
Where Dr. Walker ranks in Medicare procedure volume
- Knee replacement
- 39th percentile12 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Hip replacement: 1 to 10 procedures (CMS shows small counts as a range)
Lower limb (leg) arthroscopy (minimally invasive joint repair): 1 to 10 procedures (CMS shows small counts as a range)
Removal of nail tissue: 1 to 10 procedures (CMS shows small counts as a range)
Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)
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. Lawrence R. Walker received $1,889 in industry payments from 2016 to 2024
CMS Open Payments shows 19 general payments to Dr. Walker from 9 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 54% of the total. Exactech, Inc. paid the most, $1,344.
General payments to Dr. Walker by program year, 2016 to 2024
General payments to Dr. Walker by kind, 2016 to 2024
- Food and beverage$1,02954%
- Travel and lodging$86046%
Companies that paid Dr. Walker the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Lawrence R. Walker graduated from VCU School of Medicine
Dr. Walker graduated from VCU School of Medicine in 1978.
- Medical school
- Board certified in orthopaedic surgery
Source: Dmand AI Professional Profile Data
Dr. Lawrence R. Walker accepts plans from 11 insurance carriers
Dr. Walker is in network with 11 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Molina
- Regence Health Plans
- Aspirus Health Plan
- +3 more carriersWith a free account
Plan types Dr. Walker accepts, by number of carriers
- Medicare8
- PPO6
- HMO5
- POS3
- EPO2
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Lawrence R. Walker'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) |
| 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. Lawrence R. Walker
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. Lawrence R. Walker's NPI number?
Dr. Lawrence R. Walker's NPI number is 1083619910. It was assigned on June 16, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Lawrence R. Walker?
Dr. Lawrence R. Walker is an orthopedic surgeon in San Bernardino, California. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. Lawrence R. Walker practice?
Dr. Walker practices at 2131 Elks Dr 201 Arrowhead Orthopaedics, San Bernardino, CA 92404-5572. Dr. Walker's primary practice is Arrowhead Orthopaedics in San Bernardino, California. Dmand AI also links Dr. Walker to 1 hospital and 2 home health agencies.
What is Dr. Lawrence R. Walker's office phone number?
The practice phone on file for Dr. Walker is (909) 726-6100.
What is Dr. Lawrence R. Walker's medical license number?
Dr. Walker holds California license C42773, one of the licenses on file in 3 states.
Which states has Dr. Lawrence R. Walker been licensed in?
Dmand AI has state licenses on file for Dr. Walker in California (1990 to 2026), Texas (1979 to 2018) and Georgia (1983 to 1989).
Which hospitals is Dr. Lawrence R. Walker affiliated with?
Dr. Walker is affiliated with Dignity Health - St. Bernardine Medical Center. Dmand AI links Dr. Walker to 1 more hospital.
What medical group is Dr. Lawrence R. Walker part of?
Dr. Walker is linked to Arrowhead Orthopaedics.
Does Dr. Lawrence R. Walker accept Medicare?
Yes. CMS data shows Dr. Walker billed Medicare for 2,663 services in 2024, and Dr. Walker accepts Medicare assignment.
What is Dr. Lawrence R. Walker's MIPS score?
Dr. Walker's MIPS final score for performance year 2024 is 75 out of 100, reported individually.
Show 8 more questionsShow fewer questions
How many Medicare patients does Dr. Lawrence R. Walker see?
CMS counts 254 Medicare patients who saw Dr. Walker in 2024, with an average age of 73.
Is Dr. Lawrence R. Walker board certified?
Yes. Dr. Walker is board certified in orthopaedic surgery by the American Board of Orthopaedic Surgery.
What services does Dr. Lawrence R. Walker bill to Medicare?
In 2024, Dr. Walker's most billed Medicare services were injected or infused drug (J0702), office visit, established patient (99214) and surgery: bones and joints (20610).
Where did Dr. Lawrence R. Walker go to medical school?
Dr. Walker graduated from VCU School of Medicine in 1978.
What drugs does Dr. Lawrence R. Walker prescribe most?
In 2024 Medicare Part D data, Dr. Walker's most prescribed drugs by claims were Hydrocodone-Acetaminophen, Oxycodone-Acetaminophen and Meloxicam.
Has Dr. Lawrence R. Walker received payments from drug or device companies?
CMS Open Payments shows $1,889 in general payments to Dr. Walker from 9 companies from 2016 to 2024. The largest total came from Exactech, Inc.
How long has Dr. Lawrence R. Walker been practicing?
Dr. Walker graduated from medical school in 1978, 48 years ago.
What insurance does Dr. Lawrence R. Walker accept?
Dr. Walker is in network with 11 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.
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