Dr. Mark Lubow Riley, DO

  • Los Angeles, CA
  • Rheumatologist
NPI1295239507PAC ID9133464076
Medicare services, 2024
20,608
Medicare patients, 2024
288
Part D claims, 2024
786
Publications
8
MIPS score, 2024
80
Practice address
10474 W Santa Monica Blvd, Los Angeles, CA 90025
Practice phone
Call (310) 652-0010
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Rs Venuturupalli MD Inc

Los Angeles, California

See all 5 affiliations

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Dr. Mark Lubow Riley is a rheumatologist in Los Angeles, California

Dr. Riley practices at Rs Venuturupalli MD Inc in Los Angeles, California.

Dr. Riley's NPI, 1295239507, was assigned on March 21, 2018. Dr. Riley graduated from Heritage College of Osteopathic Medicine in 2018. Dr. Riley's Illinois license number on file is 036.156867.

NPI and contact details
Medicare PAC ID
9133464076
NPI enumeration date
March 21, 2018
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(310) 652-0010
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
34
Medical school graduation
2018

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Mark Lubow Riley practices at Rs Venuturupalli MD Inc in Los Angeles, California

Dr. Riley's primary practice is Rs Venuturupalli MD Inc, at 10474 W Santa Monica Blvd, Los Angeles, CA 90025 in Los Angeles County. The practice phone is (310) 652-0010.

  • Rs Venuturupalli MD Inc
    10474 W Santa Monica Blvd, Los Angeles, CA 90025 · Los Angeles CountyPhone(310) 652-0010

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Mark Lubow Riley is affiliated with 4 sites of care and 1 medical group

Dr. Riley's primary practice is Rs Venuturupalli MD Inc in Los Angeles, California. Dr. Riley is also affiliated with Cedars-Sinai Medical Center. The medical group on file is Attune Health. Dmand AI also links Dr. Riley to 1 more hospital and 1 group practice or clinic, each named with a free account.

See all 5 affiliations for Dr. Riley

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Mark Lubow Riley's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Riley practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Rs Venuturupalli MD IncAvailable with a free account
+3 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Mark Lubow Riley is one of 821 rheumatologists in California

Rheumatology is Dr. Riley's primary specialty in the NPI Registry, under taxonomy code 207RR0500X. Dr. Riley is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Riley's licenses on file in 3 states: Illinois, California and New York.

Specialties and state licenses

  • Rheumatology, IllinoisPrimaryLicense 036.156867 · 2021 to 2023 · taxonomy 207RR0500X
  • California license2023 to 2027
  • New York license2018 to 2021

Clinical focus

Dmand AI lists arthritis, fluid in a joint, joint arthropathy, osteoporosis and rheumatoid arthritis among the conditions Dr. Riley treats.

Rheumatologists near Dr. Riley

Counts of rheumatologists 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. Mark Lubow Riley billed Medicare for 20,608 services in 2024

CMS data shows 20,608 Medicare services from Dr. Riley across 37 procedure codes in 2024, for 288 Medicare patients. Medicare paid $349,678 for them.

Medicare services, 202420,608
Medicare patients288
Paid by Medicare$349,678
Procedure codes37

Dr. Riley's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Drugs given in the office
2023: 02024: 16,306
Lab and pathology
2023: 3362024: 2,054511%
Office and hospital visits
2023: 1312024: 1,008669%
Surgery
2023: 792024: 484513%
Other services
2023: 02024: 389
Tests and treatments
2023: 02024: 367

Where Dr. Riley's Medicare services took place, 2024

  • In an office20,506100%
  • In a facility1020%

Dr. Riley compared with the California median for rheumatologists, 2024

  • Dr. Riley
  • California median
Medicare services
20,608vs 90022.9 times
Medicare patients
288vs 21633% above
Part D claims
541vs 96244% below

Medians across 773 rheumatologists in California with Dmand AI profiles that report each measure.

Dr. Riley'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. Riley

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Mark Lubow Riley treated 288 Medicare patients in 2024, average age 76

CMS counts 288 Medicare patients who saw Dr. Riley in 2024. The largest group is 65 to 74, with 116 patients. 75% of them have arthritis, and 75% have high cholesterol. 14% are also on Medicaid. Their average risk score is 1.49, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Riley's median patient age at 68, with 75% women.

Medicare patients, 2024288
Average age76
Average risk score1.49
Also on Medicaid14%

Dr. Riley's Medicare patients by age, 2024

Dr. Riley's Medicare patients by sex, 2024

  • Women20973%
  • Men7927%

Chronic conditions among Dr. Riley's Medicare patients, 2024

  1. Arthritis75%
  2. High cholesterol75%
  3. High blood pressure66%
  4. Osteoporosis57%
  5. Ischemic heart disease42%
  6. Mood disorders27%
  7. Anxiety26%
  8. Depression24%

Share of Medicare patients with each condition. A patient can have several.

Dr. Riley'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

  • Women75%
  • Men24%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Mark Lubow Riley wrote 786 Medicare Part D claims in 2024

In 2024, Dr. Riley wrote 786 Medicare Part D claims for 167 patients. 90% of them were for generic drugs. CMS names the drug for 541 of them, across 18 drugs with 11 or more claims each, at $271,770 in total drug cost. In 2023, CMS named 34 claims across 2 drugs.

Part D claims, 2024786
Drugs named by CMS18
Total drug cost$271,770
Part D patients167

Dr. Riley's Part D claims by kind of drug, 2024

  • Generic704 claims90%
  • Brand-name and other82 claims10%

Dr. Riley'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. Riley's Part D claims, 2024

  • Opioids4%30 of 786 claims
  • Antibiotics2%14 of 786 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: 342024: 5411491%

Drugs named by CMS: 18 in 2024, 2 in 2023.

See all prescribing by Dr. Riley

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. Mark Lubow Riley scored 80 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 80 out of 100 for Dr. Riley for performance year 2024, reported as part of a group. Dr. Riley accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Riley as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Riley's MIPS scores, performance year 2024

  • 80of 100Final score
  • 86.1of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 48of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

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Dr. Mark Lubow Riley has 8 publications on record

Dmand AI links 8 papers to Dr. Riley, published from 2014 to 2025. Dr. Riley's most frequent co-authors are Ruben A. Peredo-Wende, MD, Rohit Aggarwal, MD and Mustafa Erdem Arslan, MD.

Papers8
Years published2014 to 2025

Dr. Riley's papers by year, 2014 to 2025

Dr. Riley's most frequent co-authors

Recent publications by Dr. Riley

See all 8 publications and co-authors

See who Dr. Riley researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Riley works with, so you can find a warm path to the right rheumatologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Mark Lubow Riley received $4,570 in industry payments from 2022 to 2025

CMS Open Payments shows 126 general payments to Dr. Riley from 16 drug and device companies from 2022 to 2025. Food and beverage make up the largest share, 77% of the total. Janssen Research & Development, LLC paid the most, $1,292.

General payments to Dr. Riley by program year, 2022 to 2025

General payments to Dr. Riley by kind, 2022 to 2025

$4.6Kin total
  • Food and beverage$3,51877%
  • Travel and lodging$95221%
  • Education$1002%

Companies that paid Dr. Riley the most, 2022 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Riley

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Mark Lubow Riley graduated from Heritage College of Osteopathic Medicine

Dr. Riley graduated from Heritage College of Osteopathic Medicine in 2018.

  1. Medical schoolHeritage College of Osteopathic Medicine
  2. Board certified in internal medicineAmerican Board of Internal Medicine
  3. Board certified in rheumatologyAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Mark Lubow Riley accepts plans from 5 insurance carriers

Dr. Riley is in network with 5 carriers, including Blue Cross Blue Shield of Michigan, Elevance and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.

  • Blue Cross Blue Shield of Michigan
  • Elevance
  • Blue Cross Blue Shield of Massachusetts
  • HCSC
  • CMS Medicare

Plan types Dr. Riley accepts, by number of carriers

  1. Medicare5
  2. PPO4
  3. HMO2
  4. EPO1
  5. POS1

Source: Dmand AI Insurance Network Data

Sources for Dr. Mark Lubow Riley'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 phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
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. Mark Lubow Riley

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. Mark Lubow Riley's NPI number?

Dr. Mark Lubow Riley's NPI number is 1295239507. It was assigned on March 21, 2018, and it is active in the NPI Registry.

What kind of doctor is Dr. Mark Lubow Riley?

Dr. Mark Lubow Riley is a rheumatologist in Los Angeles, California. The primary specialty in the NPI Registry is Rheumatology Physician (taxonomy code 207RR0500X).

Where does Dr. Mark Lubow Riley practice?

Dr. Riley practices at 10474 W Santa Monica Blvd, Los Angeles, CA 90025. Dr. Riley's primary practice is Rs Venuturupalli MD Inc in Los Angeles, California. Dmand AI also links Dr. Riley to 1 hospital and 1 group practice or clinic.

What is Dr. Mark Lubow Riley's office phone number?

The practice phone on file for Dr. Riley is (310) 652-0010.

What is Dr. Mark Lubow Riley's medical license number?

Dr. Riley's Illinois license number on file is 036.156867, one of the licenses on file in 3 states.

Which states has Dr. Mark Lubow Riley been licensed in?

Dmand AI has state licenses on file for Dr. Riley in Illinois (2021 to 2023), California (2023 to 2027) and New York (2018 to 2021).

Which hospitals is Dr. Mark Lubow Riley affiliated with?

Dr. Riley is affiliated with Cedars-Sinai Medical Center. Dmand AI links Dr. Riley to 1 more hospital.

What medical group is Dr. Mark Lubow Riley part of?

Dr. Riley is linked to Attune Health.

Does Dr. Mark Lubow Riley accept Medicare?

Yes. CMS data shows Dr. Riley billed Medicare for 20,608 services in 2024, and Dr. Riley accepts Medicare assignment.

Does Dr. Mark Lubow Riley offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Riley as offering telehealth services.

Show 11 more questionsShow fewer questions

What is Dr. Mark Lubow Riley's MIPS score?

Dr. Riley's MIPS final score for performance year 2024 is 80 out of 100, reported as part of a group.

How many Medicare patients does Dr. Mark Lubow Riley see?

CMS counts 288 Medicare patients who saw Dr. Riley in 2024, with an average age of 76.

Is Dr. Mark Lubow Riley board certified?

Yes. Dr. Riley is board certified in internal medicine by the American Board of Internal Medicine.

What services does Dr. Mark Lubow Riley bill to Medicare?

In 2024, Dr. Riley's most billed Medicare services were injected or infused drug (J3111), injected or infused drug (J0897) and injected or infused drug (J1010).

Where did Dr. Mark Lubow Riley go to medical school?

Dr. Riley graduated from Heritage College of Osteopathic Medicine in 2018.

What drugs does Dr. Mark Lubow Riley prescribe most?

In 2024 Medicare Part D data, Dr. Riley's most prescribed drugs by claims were Prednisone, Hydroxychloroquine Sulfate and Gabapentin.

Has Dr. Mark Lubow Riley received payments from drug or device companies?

CMS Open Payments shows $4,570 in general payments to Dr. Riley from 16 companies from 2022 to 2025. The largest total came from Janssen Research & Development, LLC.

How long has Dr. Mark Lubow Riley been practicing?

Dr. Riley graduated from medical school in 2018, 8 years ago.

Does Dr. Mark Lubow Riley do research?

Dmand AI links 8 publications to Dr. Riley, published from 2014 to 2025.

Who does Dr. Mark Lubow Riley publish with?

Dr. Riley's most frequent co-authors are Ruben A. Peredo-Wende, MD (3 shared papers), Rohit Aggarwal, MD (1 shared paper) and Mustafa Erdem Arslan, MD (1 shared paper).

What insurance does Dr. Mark Lubow Riley accept?

Dr. Riley is in network with 5 carriers, including Blue Cross Blue Shield of Michigan, Elevance and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.

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