Dr. Christopher Robert Major, MD

  • Los Angeles, CA
  • Emergency medicine physician
NPI1124286091PAC ID8921161175
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
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Personal email
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Mobile number
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Social profiles

Primary practice

Martin Luther King, Jr. Community Hospital

Hospital · Los Angeles, California

See all 9 affiliations

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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 and contact details
Medicare PAC ID
8921161175
NPI enumeration date
May 28, 2008
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(424) 835-6808
Professional email
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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.

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.

See all 9 affiliations for Dr. Major

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.

EHR by site
SiteEHR vendor and product
Martin Luther King, Jr. Community HospitalAvailable with a free account
+4 more sites and 3 medical groupsAvailable 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, CaliforniaPrimaryLicense A99501 · 2007 to 2027 · taxonomy 207P00000X

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.

Medicare services, 2024259
Medicare patients259
Paid by Medicare$32,476
Procedure codes4

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.

See all procedures by Dr. Major

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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.

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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.

Medicare patients, 2024259
Average age65
Average risk score2.67

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

  1. High blood pressure75%
  2. High cholesterol69%
  3. Arthritis55%
  4. Diabetes55%
  5. Mood disorders41%
  6. Tobacco use41%
  7. Alcohol and drug use disorders39%
  8. 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.

Part D claims, 2024271
Drugs named by CMS6
Total drug cost$907
Part D patients150

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.

See all prescribing by Dr. Major

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.

Papers1

Recent publications by Dr. Major

See all 1 publications and co-authors

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.

How network discovery works

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.

  1. Medical schoolBoston University School Of Medicine
  2. Board certified in emergency medicineAmerican Board of 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

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand 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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