Dr. Christopher Robert Major, MD
- Medicare services, 2024
- 259
- Medicare patients, 2024
- 259
- Part D claims, 2024
- 271
- Publications
- 1
- Hospital affiliations
- 1
- Practice address
- 1680 East 120th Street, Los Angeles, CA 90059
- Practice phone
- Call (424) 835-6808
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Major'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. Christopher Robert Major is an emergency medicine physician in Los Angeles, California
Dr. Major practices at Martin Luther King, Jr. Community Hospital in Los Angeles, California, part of County of Los Angeles.
Dr. Major's NPI, 1124286091, was assigned on May 28, 2008. Dr. Major graduated from Boston University School Of Medicine in 2005. Dr. Major holds California license A99501.
- NPI
- 1124286091NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8921161175
- NPI enumeration date
- May 28, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (424) 835-6808
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 47
- Medical school graduation
- 2005
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Christopher Robert Major practices at Martin Luther King, Jr. Community Hospital in Los Angeles, California
Dr. Major's primary practice is Martin Luther King, Jr. Community Hospital, at 1680 East 120th Street, Los Angeles, CA 90059 in Los Angeles County. The practice phone is (424) 835-6808.
- Martin Luther King, Jr. Community Hospital1680 East 120th Street, Los Angeles, CA 90059 · Los Angeles CountyPhone(424) 835-6808
Source: Dmand AI Affiliation Data
Dr. Christopher Robert Major is affiliated with 5 sites of care and 4 medical groups
Dr. Major's primary practice is Martin Luther King, Jr. Community Hospital in Los Angeles, California, part of County of Los Angeles. The medical group on file is Chino Emergency Medical Associates, Inc. Dmand AI also links Dr. Major to 4 more group practices and clinics and 3 medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Christopher Robert Major's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Major practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Martin Luther King, Jr. Community Hospital | Available with a free account |
| +4 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Christopher Robert Major is one of 7,423 emergency medicine physicians in California
Emergency medicine is Dr. Major's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Major is board certified in emergency medicine by the American Board of Emergency Medicine. Dr. Major is licensed in California.
Specialties and state licenses
- Emergency medicine, CaliforniaPrimary
Emergency medicine physicians near Dr. Major
Counts of emergency medicine physicians 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. Christopher Robert Major billed Medicare for 259 services in 2024
CMS data shows 259 Medicare services from Dr. Major across 4 procedure codes in 2024, for 259 Medicare patients. Medicare paid $32,476 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Major's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2412024: 2597%
Dr. Major compared with the California median for emergency medicine physicians, 2024
- Dr. Major
- California median
- Medicare services
- 259vs 265Close to median
- Medicare patients
- 259vs 2437% above
- Part D claims
- 149vs 622.4 times
Medians across 7,079 emergency medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Major'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Major and other emergency medicine physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Christopher Robert Major treated 259 Medicare patients in 2024, average age 65
CMS counts 259 Medicare patients who saw Dr. Major in 2024. The largest group is 65 to 74, with 124 patients. 75% of them have high blood pressure, and 69% have high cholesterol. Their average risk score is 2.67, 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. Major's median patient age at 39, with 55% women.
Dr. Major's Medicare patients by age, 2024
Dr. Major's Medicare patients by sex, 2024
- Women16463%
- Men9537%
Chronic conditions among Dr. Major's Medicare patients, 2024
- High blood pressure75%
- High cholesterol69%
- Arthritis55%
- Diabetes55%
- Mood disorders41%
- Tobacco use41%
- Alcohol and drug use disorders39%
- Chronic kidney disease38%
Share of Medicare patients with each condition. A patient can have several.
Dr. Major's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 39
Patient panel by sex, all payers
- Women55%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Christopher Robert Major wrote 271 Medicare Part D claims in 2024
In 2024, Dr. Major wrote 271 Medicare Part D claims for 150 patients. 93% of them were for generic drugs. CMS names the drug for 149 of them, across 6 drugs with 11 or more claims each, at $907 in total drug cost. In 2023, CMS named 133 claims across 4 drugs.
Dr. Major's Part D claims by kind of drug, 2024
- Generic252 claims93%
- Brand-name and other19 claims7%
Dr. Major'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. Major's Part D claims, 2024
- Opioids5%14 of 271 claims
- Antibiotics37%99 of 271 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: 1332024: 14912%
Drugs named by CMS: 6 in 2024, 4 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
How Dr. Christopher Robert Major takes part in Medicare
Dr. Major accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Christopher Robert Major has 1 publication on record
Dmand AI links 1 paper to Dr. Major in 2025.
Recent publications by Dr. Major
See who Dr. Major researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Major works with, so you can find a warm path to the right emergency medicine physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Christopher Robert Major graduated from Boston University School Of Medicine
Dr. Major graduated from Boston University School Of Medicine in 2005.
- Medical school
- Board certified in emergency medicine
Source: Dmand AI Professional Profile Data
Dr. Christopher Robert Major accepts plans from 1 insurance carrier
Dr. Major is in network with 1 carrier, including CMS Medicare. Medicare plans come from the most carriers, 1. Check the plan with the practice before a visit.
- CMS Medicare
Source: Dmand AI Insurance Network Data
Sources for Dr. Christopher Robert Major'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 DataDmand AI Org Hierarchy 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Christopher Robert Major
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. Christopher Robert Major's NPI number?
Dr. Christopher Robert Major's NPI number is 1124286091. It was assigned on May 28, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Christopher Robert Major?
Dr. Christopher Robert Major is an emergency medicine physician in Los Angeles, California. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Christopher Robert Major practice?
Dr. Major practices at 1680 East 120th Street, Los Angeles, CA 90059. Dr. Major's primary practice is Martin Luther King, Jr. Community Hospital in Los Angeles, California, part of County of Los Angeles. Dmand AI also links Dr. Major to 4 group practices and clinics and 3 medical groups.
What is Dr. Christopher Robert Major's office phone number?
The practice phone on file for Dr. Major is (424) 835-6808.
What is Dr. Christopher Robert Major's medical license number?
Dr. Major holds California license A99501.
Which hospitals is Dr. Christopher Robert Major affiliated with?
Dr. Major practices at Martin Luther King, Jr. Community Hospital in Los Angeles, California.
What medical group is Dr. Christopher Robert Major part of?
Dr. Major is linked to Chino Emergency Medical Associates, Inc. Dmand AI links Dr. Major to 3 more medical groups.
Does Dr. Christopher Robert Major accept Medicare?
Yes. CMS data shows Dr. Major billed Medicare for 259 services in 2024, and Dr. Major accepts Medicare assignment.
How many Medicare patients does Dr. Christopher Robert Major see?
CMS counts 259 Medicare patients who saw Dr. Major in 2024, with an average age of 65.
Is Dr. Christopher Robert Major board certified?
Yes. Dr. Major is board certified in emergency medicine by the American Board of Emergency Medicine.
Show 6 more questionsShow fewer questions
What services does Dr. Christopher Robert Major bill to Medicare?
In 2024, Dr. Major's most billed Medicare services were emergency department visit (99285), emergency department visit (99284) and critical care (99291).
Where did Dr. Christopher Robert Major go to medical school?
Dr. Major graduated from Boston University School Of Medicine in 2005.
What drugs does Dr. Christopher Robert Major prescribe most?
In 2024 Medicare Part D data, Dr. Major's most prescribed drugs by claims were Ibuprofen, Cephalexin and Hydrocodone-Acetaminophen.
How long has Dr. Christopher Robert Major been practicing?
Dr. Major graduated from medical school in 2005, 21 years ago.
Does Dr. Christopher Robert Major do research?
Dmand AI links 1 publication to Dr. Major.
What insurance does Dr. Christopher Robert Major accept?
Dr. Major is in network with 1 carrier, including CMS Medicare. Medicare plans come from the most carriers, 1. Check the plan with the practice before a visit.
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