J Intensive Care Med
Acid-Base ImbalanceArteriesBicarbonates
Dr. Richard Michael Treger, MD
NPI1194922625PAC ID5890113062
- Medicare services, 2024
- 28
- Medicare patients, 2024
- 16
- Part D claims, 2024
- 2,666
- Publications
- 2
- Hospital affiliations
- 2
- Practice address
- 4700 Sunset Blvd, 2nd Floor, Los Angeles, CA 90027
- Practice phone
- Call (213) 667-8101
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Dialysis Unit at Los Angeles Medical Center
Dialysis Center - Independent · Los Angeles, California
Find Dr. Treger'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. Richard Michael Treger is a nephrologist in Los Angeles, California
Dr. Treger practices at Dialysis Unit at Los Angeles Medical Center in Los Angeles, California.
Dr. Treger's NPI, 1194922625, was assigned on June 28, 2007. Dr. Treger graduated from Keck School of Medicine of USC in 2001. Dr. Treger holds California license A83636.
NPI and contact details
- NPI
- 1194922625NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5890113062
- NPI enumeration date
- June 28, 2007
- NPI status
- Active
- Practice phone
- (213) 667-8101
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 51
- Medical school graduation
- 2001
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Richard Michael Treger practices at Dialysis Unit at Los Angeles Medical Center in Los Angeles, California
Dr. Treger's primary practice is Dialysis Unit at Los Angeles Medical Center, at 4700 Sunset Blvd, 2nd Floor, Los Angeles, CA 90027 in Los Angeles County. The practice phone is (213) 667-8101.
- Dialysis Unit at Los Angeles Medical Center4700 Sunset Blvd, 2nd Floor, Los Angeles, CA 90027 · Los Angeles CountyPhone(213) 667-8101
Source: Dmand AI Affiliation Data
Dr. Richard Michael Treger is affiliated with 3 sites of care and 1 medical group
Dr. Treger's primary practice is Dialysis Unit at Los Angeles Medical Center in Los Angeles, California. Dr. Treger is also affiliated with Kaiser Permanente Los Angeles Medical Center. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Dr. Treger to 1 more hospital, named with a free account.
Dialysis Unit at Los Angeles Medical CenterPrimary
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Richard Michael Treger's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Treger practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dialysis Unit at Los Angeles Medical Center | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
See the EHR and IT leaders at every site where Dr. Treger practices
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 Michael Treger is one of 1,401 nephrologists in California
Nephrology is Dr. Treger's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Treger is board certified in internal medicine by the American Board of Internal Medicine. Dr. Treger is licensed in California.
Specialties and state licenses
- Nephrology, CaliforniaPrimary
Nephrologists near Dr. Treger
Counts of nephrologists 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 Michael Treger billed Medicare for 28 services in 2024
CMS data shows 28 Medicare services from Dr. Treger across 1 procedure code in 2024, for 16 Medicare patients. Medicare paid $1,811 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 202428
Medicare patients16
Paid by Medicare$1,811
Procedure codes1
Dr. Treger's Medicare services by type, 2022 to 2024
- 2022
- 2024
- Office and hospital visits
- 2022: 272024: 284%
Dr. Treger compared with the California median for nephrologists, 2024
- Dr. Treger
- California median
- Medicare services
- 28vs 1,08497% below
- Medicare patients
- 16vs 30795% below
- Part D claims
- 2,374vs 9552.5 times
Medians across 1,355 nephrologists in California with Dmand AI profiles that report each measure.
Dr. Treger'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. Treger?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Treger and other nephrologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Richard Michael Treger treated 16 Medicare patients in 2024, average age 62
CMS counts 16 Medicare patients who saw Dr. Treger in 2024. The largest group is 85 and over, with 0 patients. 75% of them have chronic kidney disease, and 75% have diabetes. Their average risk score is 8.70, 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. Treger's median patient age at 70, with 47% women.
Medicare patients, 202416
Average age62
Average risk score8.70
Dr. Treger's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Dr. Treger's Medicare patients, 2024
- Chronic kidney disease75%
- Diabetes75%
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease69%
Share of Medicare patients with each condition. A patient can have several.
Dr. Treger's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women47%
- Men53%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Richard Michael Treger wrote 2,666 Medicare Part D claims in 2024
In 2024, Dr. Treger wrote 2,666 Medicare Part D claims for 267 patients. 91% of them were for generic drugs. CMS names the drug for 2,374 of them, across 49 drugs with 11 or more claims each, at $162,736 in total drug cost. In 2023, CMS named 2,233 claims across 43 drugs.
Part D claims, 20242,666
Drugs named by CMS49
Total drug cost$162,736
Part D patients267
Dr. Treger's Part D claims by kind of drug, 2024
- Generic2,436 claims91%
- Brand-name214 claims8%
- Other16 claims1%
Dr. Treger'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. Treger's Part D claims, 2024
- Antibiotics0%13 of 2,666 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: 2,2332024: 2,3746%
Drugs named by CMS: 49 in 2024, 43 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
Find nephrologists like Dr. Treger by procedure volume and prescribing
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 Michael Treger has 2 publications on record
Dmand AI links 2 papers to Dr. Treger, published from 2009 to 2018. The most frequent topics are Bicarbonates, Blood Gas Analysis and Hydrogen-Ion Concentration. Dr. Treger's most frequent co-authors are Nader Kamangar, MD, Shahriar Pirouz, MD and Scott E. Rudkin, MD.
Papers2
Years published2009 to 2018
Topics Dr. Treger writes about most
- Bicarbonates
- Blood Gas Analysis
- Hydrogen-Ion Concentration
Dr. Treger's most frequent co-authors
- Nader Kamangar, MD1 shared paper
- Shahriar Pirouz, MD1 shared paper
- Scott E. Rudkin, MD1 shared paper
Recent publications by Dr. Treger
Clin J Am Soc Nephrol
BicarbonatesBlood Gas AnalysisCarbon Dioxide
See who Dr. Treger researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Treger works with, so you can find a warm path to the right nephrologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Richard Michael Treger received $30 in industry payments in 2024
CMS Open Payments shows 1 general payment to Dr. Treger from 1 drug or device company in 2024. Food and beverage make up the largest share, 100% of the total. Travere Therapeutics, Inc. paid the most, $30.
Companies that paid Dr. Treger the most, 2024 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Richard Michael Treger graduated from Keck School of Medicine of USC
Dr. Treger graduated from Keck School of Medicine of USC in 2001.
- Medical school
- Board certified in internal medicine
- Board certified in nephrology
Source: Dmand AI Professional Profile Data
Dr. Richard Michael Treger accepts plans from 2 insurance carriers
Dr. Treger is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
- CMS Medicare
Plan types Dr. Treger accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Richard Michael Treger'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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Richard Michael Treger
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 Michael Treger's NPI number?
Dr. Richard Michael Treger's NPI number is 1194922625. It was assigned on June 28, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Richard Michael Treger?
Dr. Richard Michael Treger is a nephrologist in Los Angeles, California. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Richard Michael Treger practice?
Dr. Treger practices at 4700 Sunset Blvd, 2nd Floor, Los Angeles, CA 90027. Dr. Treger's primary practice is Dialysis Unit at Los Angeles Medical Center in Los Angeles, California. Dmand AI also links Dr. Treger to 1 hospital.
What is Dr. Richard Michael Treger's office phone number?
The practice phone on file for Dr. Treger is (213) 667-8101.
What is Dr. Richard Michael Treger's medical license number?
Dr. Treger holds California license A83636.
Which hospitals is Dr. Richard Michael Treger affiliated with?
Dr. Treger is affiliated with Kaiser Permanente Los Angeles Medical Center. Dmand AI links Dr. Treger to 1 more hospital.
What medical group is Dr. Richard Michael Treger part of?
Dr. Treger is linked to Southern California Permanente Medical Group.
Does Dr. Richard Michael Treger accept Medicare?
Yes. CMS data shows Dr. Treger billed Medicare for 28 services in 2024.
How many Medicare patients does Dr. Richard Michael Treger see?
CMS counts 16 Medicare patients who saw Dr. Treger in 2024, with an average age of 62.
Is Dr. Richard Michael Treger board certified?
Yes. Dr. Treger is board certified in internal medicine by the American Board of Internal Medicine.
Show 8 more questionsShow fewer questions
What services does Dr. Richard Michael Treger bill to Medicare?
In 2024, Dr. Treger's most billed Medicare services were hospital inpatient care (99232).
Where did Dr. Richard Michael Treger go to medical school?
Dr. Treger graduated from Keck School of Medicine of USC in 2001.
What drugs does Dr. Richard Michael Treger prescribe most?
In 2024 Medicare Part D data, Dr. Treger's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Losartan Potassium.
Has Dr. Richard Michael Treger received payments from drug or device companies?
CMS Open Payments shows $30 in general payments to Dr. Treger from 1 company from 2024 to 2024. The largest total came from Travere Therapeutics, Inc.
How long has Dr. Richard Michael Treger been practicing?
Dr. Treger graduated from medical school in 2001, 25 years ago.
Does Dr. Richard Michael Treger do research?
Dmand AI links 2 publications to Dr. Treger, published from 2009 to 2018.
Who does Dr. Richard Michael Treger publish with?
Dr. Treger's most frequent co-authors are Nader Kamangar, MD (1 shared paper), Shahriar Pirouz, MD (1 shared paper) and Scott E. Rudkin, MD (1 shared paper).
What insurance does Dr. Richard Michael Treger accept?
Dr. Treger is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
Selling to nephrology practices?
See nephrologists 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