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Dr. Allen S. Warner, MD
NPI1699731513
- Medicare services, 2019
- 123
- Part D claims, 2019
- 1,074
- Publications
- 2
- Industry payments
- $231
- Affiliated sites
- 1
- Practice address
- 8700 Beverly Blvd, West Hollywood, CA 90048
- Practice phone
- Call (323) 866-8600
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Cedars-Sinai Medical Center
West Hollywood, California
Find Dr. Warner's professional email, personal email and mobile number
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Dr. Allen S. Warner is a nephrologist in West Hollywood, California
Dr. Warner practices at Cedars-Sinai Medical Center in West Hollywood, California.
Dr. Warner's NPI, 1699731513, was assigned on April 21, 2006. Dr. Warner graduated from Geisel School Of Medicine At Dartmouth in 1976. Dr. Warner's California license number on file is G34765.
NPI and contact details
- NPI
- 1699731513NPI Registry (opens in a new tab)
- NPI enumeration date
- April 21, 2006
- NPI status
- Active
- Practice phone
- (323) 866-8600
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1976
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Allen S. Warner practices at Cedars-Sinai Medical Center in West Hollywood, California
Dr. Warner's primary practice is Cedars-Sinai Medical Center, at 8700 Beverly Blvd, West Hollywood, CA 90048 in Los Angeles County. The practice phone is (323) 866-8600.
- Cedars-Sinai Medical Center8700 Beverly Blvd, West Hollywood, CA 90048 · Los Angeles CountyPhone(323) 866-8600
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Allen S. Warner is affiliated with 2 sites of care and 1 medical group
Dr. Warner's primary practice is Cedars-Sinai Medical Center in West Hollywood, California. The medical group on file is Optum - Downtown Los Angeles. Dmand AI also links Dr. Warner to 1 more group practice or clinic, named with a free account.
Cedars-Sinai Medical CenterPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Allen S. Warner's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Warner practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Cedars-Sinai Medical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Allen S. Warner is one of 1,401 nephrologists in California
Nephrology is Dr. Warner's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Warner is board certified in internal medicine by the American Board of Internal Medicine. Dr. Warner has a license on file in California.
Specialties and state licenses
- Nephrology, CaliforniaPrimary
Nephrologists near Dr. Warner
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. Allen S. Warner billed Medicare for 123 services in 2019
CMS data shows 123 Medicare services from Dr. Warner across 3 procedure codes in 2019. Medicare paid $9,292 for them. Every service was in an office.
Medicare services, 2019123
Paid by Medicare$9,292
Procedure codes3
Dr. Warner's Medicare services by type, 2018 to 2019
- 2018
- 2019
- Office and hospital visits
- 2018: 3872019: 6084%
- Tests and treatments
- 2018: 4642019: 3792%
- Surgery
- 2018: 1002019: 2674%
- Drugs given in the office
- 2018: 2,0102019: 0100%
- Lab and pathology
- 2018: 3652019: 0100%
- Other services
- 2018: 232019: 0100%
Dr. Warner compared with the California median for nephrologists, 2019
- Dr. Warner
- California median
- Medicare services
- 123vs 1,08489% below
- Part D claims
- 1,074vs 95512% above
Medians across 1,355 nephrologists in California with Dmand AI profiles that report each measure.
Dr. Warner's most billed Medicare procedure codes, 2019
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. Warner?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Warner and other nephrologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Allen S. Warner's patients have a median age of 76
Across all payers, Dmand AI patient panel data puts Dr. Warner's median patient age at 76, with 67% women.
Dr. Warner's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 76
Patient panel by sex, all payers
- Women67%
- Men33%
Source: Dmand AI Patient Panel Data
Dr. Allen S. Warner wrote 1,074 Medicare Part D claims in 2019
In 2019, Dr. Warner wrote 1,074 Medicare Part D claims. They cover 29 drugs, with $93,050 in total drug cost. In 2018, CMS named 2,989 claims across 52 drugs.
Part D claims, 20191,074
Drugs named by CMS29
Total drug cost$93,050
Dr. Warner's most prescribed drugs by claims, 2019
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2018 to 2019
- 2018
- 2019
- Claims for drugs CMS names
- 2018: 2,9892019: 1,07464%
Drugs named by CMS: 29 in 2019, 52 in 2018.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Allen S. Warner has 2 publications on record
Dmand AI links 2 papers to Dr. Warner.
Papers2
Recent publications by Dr. Warner
AcidosisBicarbonatesGlucose
See who Dr. Warner researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Warner 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. Allen S. Warner received $231 in industry payments from 2016 to 2018
CMS Open Payments shows 12 general payments to Dr. Warner from 10 drug and device companies from 2016 to 2018. Food and beverage make up the largest share, 92% of the total. Horizon Pharma plc paid the most, $48.
General payments to Dr. Warner by program year, 2016 to 2018
General payments to Dr. Warner by kind, 2016 to 2018
$231in total
- Food and beverage$21292%
- Education$198%
Companies that paid Dr. Warner the most, 2016 to 2018
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Allen S. Warner graduated from Geisel School Of Medicine At Dartmouth
Dr. Warner graduated from Geisel School Of Medicine At Dartmouth in 1976.
- Medical school
- Board certified in internal medicine
- Board certified in nephrology
Source: Dmand AI Professional Profile Data
Dr. Allen S. Warner accepts plans from 3 insurance carriers
Dr. Warner is in network with 3 carriers, including Blue Cross Blue Shield of Massachusetts, HCSC and Molina. Medicare plans come from the most carriers, 3. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Molina
Plan types Dr. Warner accepts, by number of carriers
- Medicare3
- PPO2
Source: Dmand AI Insurance Network Data
Sources for Dr. Allen S. Warner'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (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. Allen S. Warner
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. Allen S. Warner's NPI number?
Dr. Allen S. Warner's NPI number is 1699731513. It was assigned on April 21, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Allen S. Warner?
Dr. Allen S. Warner is a nephrologist in West Hollywood, California. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Allen S. Warner practice?
Dr. Warner practices at 8700 Beverly Blvd, West Hollywood, CA 90048. Dr. Warner's primary practice is Cedars-Sinai Medical Center in West Hollywood, California. Dmand AI also links Dr. Warner to 1 group practice or clinic.
What is Dr. Allen S. Warner's office phone number?
The practice phone on file for Dr. Warner is (323) 866-8600.
What is Dr. Allen S. Warner's medical license number?
Dr. Warner's California license number on file is G34765.
What medical group is Dr. Allen S. Warner part of?
Dr. Warner is linked to Optum - Downtown Los Angeles.
Does Dr. Allen S. Warner accept Medicare?
Yes. CMS data shows Dr. Warner billed Medicare for 123 services in 2019.
Is Dr. Allen S. Warner board certified?
Yes. Dr. Warner is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Allen S. Warner bill to Medicare?
In 2019, Dr. Warner's most billed Medicare services were office visit, established patient (99213), dialysis (90961) and surgery: heart and blood vessels (36415).
Where did Dr. Allen S. Warner go to medical school?
Dr. Warner graduated from Geisel School Of Medicine At Dartmouth in 1976.
Show 5 more questionsShow fewer questions
What drugs does Dr. Allen S. Warner prescribe most?
In 2019 Medicare Part D data, Dr. Warner's most prescribed drugs by claims were Amlodipine Besylate, Calcitriol and Losartan Potassium.
Has Dr. Allen S. Warner received payments from drug or device companies?
CMS Open Payments shows $231 in general payments to Dr. Warner from 10 companies from 2016 to 2018. The largest total came from Horizon Pharma plc.
How long has Dr. Allen S. Warner been practicing?
Dr. Warner graduated from medical school in 1976, 50 years ago.
Does Dr. Allen S. Warner do research?
Dmand AI links 2 publications to Dr. Warner.
What insurance does Dr. Allen S. Warner accept?
Dr. Warner is in network with 3 carriers, including Blue Cross Blue Shield of Massachusetts, HCSC and Molina. Medicare plans come from the most carriers, 3. Check the plan with the practice before a visit.
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