Dr. Rumi A. Cader, MD
- Medicare services, 2024
- 1,589
- Medicare patients, 2024
- 281
- Part D claims, 2024
- 2,876
- Hospital affiliations
- 1
- Industry payments
- $1,212
- Practice address
- 2110 E El Segundo Blvd, El Segundo, CA 90245
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
El Segundo Endoscopy Center
Surgery Center - Medicare-Certified · El Segundo, California
Find Dr. Cader's professional email, personal email and mobile number
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Dr. Rumi A. Cader is an internist in El Segundo, California
Dr. Cader practices at El Segundo Endoscopy Center in El Segundo, California.
Dr. Cader's NPI, 1508898214, was assigned on July 6, 2006. Dr. Cader graduated from David Geffen School of Medicine at UCLA in 1994. Dr. Cader holds California license A61713.
- NPI
- 1508898214NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9335247774
- NPI enumeration date
- July 6, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 60
- Medical school graduation
- 1994
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Rumi A. Cader practices at El Segundo Endoscopy Center in El Segundo, California
Dr. Cader's primary practice is El Segundo Endoscopy Center, at 2110 E El Segundo Blvd, El Segundo, CA 90245.
- El Segundo Endoscopy Center2110 E El Segundo Blvd, El Segundo, CA 90245
Source: Dmand AI Affiliation Data
Dr. Rumi A. Cader is affiliated with 4 sites of care and 3 medical groups
Dr. Cader's primary practice is El Segundo Endoscopy Center in El Segundo, California. Dr. Cader is also affiliated with Torrance Memorial Medical Center. The medical group on file is Torrance Memorial Physician Network. Dmand AI also links Dr. Cader to 2 more medical groups, 1 group practice or clinic and 1 home health agency, 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. Rumi A. Cader's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Cader practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| El Segundo Endoscopy Center | Available with a free account |
| +3 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Rumi A. Cader is one of 16,751 internists in California
Internal medicine is Dr. Cader's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Cader is board certified in internal medicine by the American Board of Internal Medicine. Dr. Cader is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Clinical focus
Dmand AI lists acid reflux, acute sinusitis, acute skin infection, aneurysm, asthma, atrial fibrillation and flutter, bronchitis and cardiomyopathy among the conditions Dr. Cader treats.
Internists near Dr. Cader
Counts of internists 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. Rumi A. Cader billed Medicare for 1,589 services in 2024
CMS data shows 1,589 Medicare services from Dr. Cader across 13 procedure codes in 2024, for 281 Medicare patients. Medicare paid $135,713 for them. Every service was in an office.
Dr. Cader's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 7582024: 7752%
- Other services
- 2023: 2382024: 577142%
- Tests and treatments
- 2023: 1632024: 22136%
- Imaging
- 2023: 142024: 1614%
- Lab and pathology
- 2023: 352024: 0100%
Dr. Cader compared with the California median for internists, 2024
- Dr. Cader
- California median
- Medicare services
- 1,589vs 3614.4 times
- Medicare patients
- 281vs 15186% above
- Part D claims
- 2,523vs 4216.0 times
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Cader'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. Cader?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Cader and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Rumi A. Cader treated 281 Medicare patients in 2024, average age 75
CMS counts 281 Medicare patients who saw Dr. Cader in 2024. The largest group is 65 to 74, with 155 patients. 75% of them have high cholesterol, and 74% have high blood pressure. Their average risk score is 1.11, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Cader's median patient age at 62, with 35% women.
Dr. Cader's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Cader's Medicare patients by sex, 2024
- Women8731%
- Men19469%
Chronic conditions among Dr. Cader's Medicare patients, 2024
- High cholesterol75%
- High blood pressure74%
- Arthritis38%
- Chronic kidney disease27%
- Diabetes25%
- Ischemic heart disease21%
- Cancer19%
- Mood disorders16%
Share of Medicare patients with each condition. A patient can have several.
Dr. Cader's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 62
Patient panel by sex, all payers
- Women35%
- Men64%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Rumi A. Cader wrote 2,876 Medicare Part D claims in 2024
In 2024, Dr. Cader wrote 2,876 Medicare Part D claims for 447 patients. 89% of them were for generic drugs. CMS names the drug for 2,523 of them, across 47 drugs with 11 or more claims each, at $64,567 in total drug cost. In 2023, CMS named 2,251 claims across 44 drugs.
Dr. Cader's Part D claims by kind of drug, 2024
- Generic2,556 claims89%
- Brand-name and other320 claims11%
Dr. Cader'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. Cader's Part D claims, 2024
- Antibiotics1%43 of 2,876 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: 2,2512024: 2,52312%
Drugs named by CMS: 47 in 2024, 44 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. Rumi A. Cader offers telehealth to Medicare patients
Dr. Cader accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Cader as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Rumi A. Cader received $1,212 in industry payments from 2017 to 2025
CMS Open Payments shows 11 general payments to Dr. Cader from 7 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 100% of the total. Stryker Corporation paid the most, $251.
General payments to Dr. Cader by program year, 2017 to 2025
Companies that paid Dr. Cader 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. Rumi A. Cader graduated from David Geffen School of Medicine at UCLA
Dr. Cader graduated from David Geffen School of Medicine at UCLA in 1994. Dr. Cader is a member of ACP.
- Medical school
- Board certified in internal medicine
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Rumi A. Cader accepts plans from 11 insurance carriers
Dr. Cader is in network with 11 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Elevance. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- Elevance
- United Healthcare
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- Aspirus Health Plan
- +3 more carriersWith a free account
Plan types Dr. Cader accepts, by number of carriers
- Medicare7
- PPO7
- HMO5
- POS5
- EPO3
Source: Dmand AI Insurance Network Data
Sources for Dr. Rumi A. Cader'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) |
| 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. Rumi A. Cader
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. Rumi A. Cader's NPI number?
Dr. Rumi A. Cader's NPI number is 1508898214. It was assigned on July 6, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Rumi A. Cader?
Dr. Rumi A. Cader is an internist in El Segundo, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Rumi A. Cader practice?
Dr. Cader practices at 2110 E El Segundo Blvd, El Segundo, CA 90245. Dr. Cader's primary practice is El Segundo Endoscopy Center in El Segundo, California. Dmand AI also links Dr. Cader to 2 medical groups, 1 group practice or clinic and 1 home health agency.
What is Dr. Rumi A. Cader's medical license number?
Dr. Cader holds California license A61713.
Which hospitals is Dr. Rumi A. Cader affiliated with?
Dr. Cader is affiliated with Torrance Memorial Medical Center.
What medical group is Dr. Rumi A. Cader part of?
Dr. Cader is linked to Torrance Memorial Physician Network. Dmand AI links Dr. Cader to 2 more medical groups.
Does Dr. Rumi A. Cader accept Medicare?
Yes. CMS data shows Dr. Cader billed Medicare for 1,589 services in 2024, and Dr. Cader accepts Medicare assignment.
Does Dr. Rumi A. Cader offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Cader as offering telehealth services.
How many Medicare patients does Dr. Rumi A. Cader see?
CMS counts 281 Medicare patients who saw Dr. Cader in 2024, with an average age of 75.
Is Dr. Rumi A. Cader board certified?
Yes. Dr. Cader is board certified in internal medicine by the American Board of Internal Medicine.
Show 6 more questionsShow fewer questions
What services does Dr. Rumi A. Cader bill to Medicare?
In 2024, Dr. Cader's most billed Medicare services were office visit, established patient (99214), medicare service (G2211) and medicare service (G0439).
Where did Dr. Rumi A. Cader go to medical school?
Dr. Cader graduated from David Geffen School of Medicine at UCLA in 1994.
What drugs does Dr. Rumi A. Cader prescribe most?
In 2024 Medicare Part D data, Dr. Cader's most prescribed drugs by claims were Atorvastatin Calcium, Rosuvastatin Calcium and Losartan Potassium.
Has Dr. Rumi A. Cader received payments from drug or device companies?
CMS Open Payments shows $1,212 in general payments to Dr. Cader from 7 companies from 2017 to 2025. The largest total came from Stryker Corporation.
How long has Dr. Rumi A. Cader been practicing?
Dr. Cader graduated from medical school in 1994, 32 years ago.
What insurance does Dr. Rumi A. Cader accept?
Dr. Cader is in network with 11 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Elevance. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
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