Dr. Richard Byron Chambers, MD
- Medicare services, 2024
- 179
- Medicare patients, 2024
- 65
- Part D claims, 2024
- 253
- Industry payments
- $488
- State license
- 1
- Practice address
- 7601 E Imperial Hwy, Downey, CA 90242
- Practice phone
- Call (562) 385-7111
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Rancho Los Amigos National Rehabilitation Center
Downey, California
Find Dr. Chambers' 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. Richard Byron Chambers is an orthopedic surgeon in Downey, California
Dr. Chambers practices at Rancho Los Amigos National Rehabilitation Center in Downey, California.
Dr. Chambers' NPI, 1487762944, was assigned on August 26, 2006. Dr. Chambers graduated from Columbia University College of Physicians and Surgeons in 1971. Dr. Chambers holds California license G39146.
- NPI
- 1487762944NPI Registry (opens in a new tab)
- NPI enumeration date
- August 26, 2006
- NPI status
- Active
- Practice phone
- (562) 385-7111
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 81
- Medical school graduation
- 1971
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Richard Byron Chambers practices at Rancho Los Amigos National Rehabilitation Center in Downey, California
Dr. Chambers' primary practice is Rancho Los Amigos National Rehabilitation Center, at 7601 E Imperial Hwy, Downey, CA 90242 in Los Angeles County. The practice phone is (562) 385-7111.
- Rancho Los Amigos National Rehabilitation Center7601 E Imperial Hwy, Downey, CA 90242 · Los Angeles CountyPhone(562) 385-7111
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Richard Byron Chambers is affiliated with 1 site of care
Dr. Chambers' primary practice is Rancho Los Amigos National Rehabilitation Center in Downey, California.
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Richard Byron Chambers' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chambers practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Rancho Los Amigos National Rehabilitation Center | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Richard Byron Chambers is one of 2,056 orthopedic surgeons in California
Orthopaedic surgery is Dr. Chambers' primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Chambers is licensed in California.
Specialties and state licenses
- Orthopaedic surgery, CaliforniaPrimary
Orthopedic surgeons near Dr. Chambers
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. Richard Byron Chambers billed Medicare for 179 services in 2024
CMS data shows 179 Medicare services from Dr. Chambers across 5 procedure codes in 2024, for 65 Medicare patients. Medicare paid $9,015 for them. Every service was in an office.
Dr. Chambers' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 842024: 10019%
- Drugs given in the office
- 2023: 292024: 5383%
- Surgery
- 2023: 332024: 2621%
- Imaging
- 2023: 152024: 0100%
Dr. Chambers compared with the California median for orthopedic surgeons, 2024
- Dr. Chambers
- California median
- Medicare services
- 179vs 68374% below
- Medicare patients
- 65vs 21570% below
- Part D claims
- 229vs 703.3 times
Medians across 1,844 orthopedic surgeons in California with Dmand AI profiles that report each measure.
Dr. Chambers' 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. Chambers?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chambers and other orthopedic surgeons in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Richard Byron Chambers treated 65 Medicare patients in 2024, average age 72
CMS counts 65 Medicare patients who saw Dr. Chambers in 2024. The largest group is 65 to 74, with 21 patients. 75% of them have arthritis, and 75% have high blood pressure. Their average risk score is 1.72, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Chambers' median patient age at 61, with 35% women.
Dr. Chambers' Medicare patients by age, 2024
Dr. Chambers' Medicare patients by sex, 2024
- Women4366%
- Men2234%
Chronic conditions among Dr. Chambers' Medicare patients, 2024
- Arthritis75%
- High blood pressure75%
- High cholesterol75%
- Diabetes49%
- Mood disorders31%
- Chronic kidney disease29%
- Depression26%
- Heart failure26%
Share of Medicare patients with each condition. A patient can have several.
Dr. Chambers' 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
- Women35%
- Men65%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Richard Byron Chambers wrote 253 Medicare Part D claims in 2024
In 2024, Dr. Chambers wrote 253 Medicare Part D claims for 88 patients. 97% of them were for generic drugs. CMS names the drug for 229 of them, across 3 drugs with 11 or more claims each, at $2,393 in total drug cost. In 2023, CMS named 304 claims across 5 drugs.
Dr. Chambers' Part D claims by kind of drug, 2024
- Generic246 claims97%
- Brand-name and other7 claims3%
Dr. Chambers' 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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 3042024: 22925%
Drugs named by CMS: 3 in 2024, 5 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
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Richard Byron Chambers received $488 in industry payments from 2017 to 2025
CMS Open Payments shows 13 general payments to Dr. Chambers from 6 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 92% of the total. Zimmer Biomet Holdings, Inc. paid the most, $208.
General payments to Dr. Chambers by program year, 2017 to 2025
General payments to Dr. Chambers by kind, 2017 to 2025
- Food and beverage$45092%
- Travel and lodging$388%
Companies that paid Dr. Chambers the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Richard Byron Chambers graduated from Columbia University College of Physicians and Surgeons
Dr. Chambers graduated from Columbia University College of Physicians and Surgeons in 1971.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Richard Byron Chambers'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile 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. Richard Byron Chambers
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. Richard Byron Chambers' NPI number?
Dr. Richard Byron Chambers' NPI number is 1487762944. It was assigned on August 26, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Richard Byron Chambers?
Dr. Richard Byron Chambers is an orthopedic surgeon in Downey, California. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. Richard Byron Chambers practice?
Dr. Chambers practices at 7601 E Imperial Hwy, Downey, CA 90242. Dr. Chambers' primary practice is Rancho Los Amigos National Rehabilitation Center in Downey, California.
What is Dr. Richard Byron Chambers' office phone number?
The practice phone on file for Dr. Chambers is (562) 385-7111.
What is Dr. Richard Byron Chambers' medical license number?
Dr. Chambers holds California license G39146.
Does Dr. Richard Byron Chambers accept Medicare?
Yes. CMS data shows Dr. Chambers billed Medicare for 179 services in 2024.
How many Medicare patients does Dr. Richard Byron Chambers see?
CMS counts 65 Medicare patients who saw Dr. Chambers in 2024, with an average age of 72.
What services does Dr. Richard Byron Chambers bill to Medicare?
In 2024, Dr. Chambers' most billed Medicare services were office visit, established patient (99213), office visit, new patient (99203) and injected or infused drug (J0665).
Where did Dr. Richard Byron Chambers go to medical school?
Dr. Chambers graduated from Columbia University College of Physicians and Surgeons in 1971.
What drugs does Dr. Richard Byron Chambers prescribe most?
In 2024 Medicare Part D data, Dr. Chambers' most prescribed drugs by claims were Diclofenac Sodium, Ibuprofen and Meloxicam.
Has Dr. Richard Byron Chambers received payments from drug or device companies?
CMS Open Payments shows $488 in general payments to Dr. Chambers from 6 companies from 2017 to 2025. The largest total came from Zimmer Biomet Holdings, Inc.
How long has Dr. Richard Byron Chambers been practicing?
Dr. Chambers graduated from medical school in 1971, 55 years ago.
Selling to orthopaedic surgery practices?
See orthopedic surgeons in California by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card