Dr. Ellen Klapper, MD

  • West Hollywood, CA
  • Pathologist
NPI1487650966
Medicare services, 2024
260
Medicare patients, 2024
192
Publications
24
MIPS score, 2024
89
Industry payments
$116
Practice address
8700 Beverly Blvd, Los Angeles, CA 90048
Practice phone
Call (310) 423-5000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Cedars-Sinai Medical Center

Hospital · Los Angeles, California

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Dr. Ellen Klapper is a pathologist in West Hollywood, California

Dr. Klapper practices at Cedars-Sinai Medical Center in Los Angeles, California, part of Cedars-Sinai Health System.

Dr. Klapper's NPI, 1487650966, was assigned on June 21, 2005. Dr. Klapper graduated from David Geffen School of Medicine at UCLA in 1984. Dr. Klapper holds California license G62356.

NPI and contact details
NPI enumeration date
June 21, 2005
NPI status
Active
Practice phone
(310) 423-5000
Professional email
Get email
Personal email
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Mobile number
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Sex
Female
Estimated age
68
Medical school graduation
1984

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

Dr. Ellen Klapper practices at Cedars-Sinai Medical Center in Los Angeles, California

Dr. Klapper's primary practice is Cedars-Sinai Medical Center, at 8700 Beverly Blvd, Los Angeles, CA 90048 in Los Angeles County. The practice phone is (310) 423-5000.

Source: Dmand AI Affiliation Data

Dr. Ellen Klapper is affiliated with 1 medical group

Dr. Klapper's primary practice is Cedars-Sinai Medical Center in Los Angeles, California, part of Cedars-Sinai Health System. The medical group on file is Cedars-Sinai Medical Group.

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Ellen Klapper's practice

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

EHR by site
SiteEHR vendor and product
Cedars-Sinai Medical CenterAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Ellen Klapper is one of 1,354 pathologists in California

Anatomic pathology and clinical pathology is Dr. Klapper's primary specialty in the NPI Registry, under taxonomy code 207ZP0102X. Dr. Klapper is board certified in anatomic pathology & clinical pathology by the American Board of Pathology. Dr. Klapper is licensed in California.

Specialties and state licenses

  • Anatomic pathology and clinical pathology, CaliforniaPrimaryLicense G62356 · 1988 to 2027 · taxonomy 207ZP0102X

Pathologists near Dr. Klapper

Counts of pathologists 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. Ellen Klapper billed Medicare for 260 services in 2024

CMS data shows 260 Medicare services from Dr. Klapper across 3 procedure codes in 2024, for 192 Medicare patients. Medicare paid $13,310 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024260
Medicare patients192
Paid by Medicare$13,310
Procedure codes3

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

  • 2023
  • 2024
Lab and pathology
2023: 1462024: 17822%
Surgery
2023: 1072024: 8223%

Dr. Klapper compared with the California median for pathologists, 2024

  • Dr. Klapper
  • California median
Medicare services
260vs 1,15377% below
Medicare patients
192vs 44757% below

Medians across 1,094 pathologists in California with Dmand AI profiles that report each measure.

Dr. Klapper'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. Klapper

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

Dr. Ellen Klapper treated 192 Medicare patients in 2024, average age 70

CMS counts 192 Medicare patients who saw Dr. Klapper in 2024. The largest group is 65 to 74, with 76 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 49% are also on Medicaid. Their average risk score is 4.84, 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. Klapper's median patient age at 33, with 100% women.

Medicare patients, 2024192
Average age70
Average risk score4.84
Also on Medicaid49%

Dr. Klapper's Medicare patients by age, 2024

Dr. Klapper's Medicare patients by sex, 2024

  • Women11359%
  • Men7941%

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

  1. High blood pressure75%
  2. High cholesterol75%
  3. Chronic kidney disease65%
  4. Ischemic heart disease60%
  5. Heart failure57%
  6. Arthritis56%
  7. Diabetes48%
  8. Mood disorders44%

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

Dr. Klapper's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 33

Patient panel by sex, all payers

  • Women100%
  • Men0%

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

Dr. Ellen Klapper scored 89 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 89 out of 100 for Dr. Klapper for performance year 2024, reported as part of a group.

Dr. Klapper's MIPS scores, performance year 2024

  • 89of 100Final score
  • 84.8of 100Quality
  • 99of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 73of 100Cost

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

Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

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Dr. Ellen Klapper has 24 publications on record

Dmand AI links 24 papers to Dr. Klapper, published from 2008 to 2024. 2009 was the busiest year, with 2. The most frequent topics are Blood Donors, Blood Grouping and Crossmatching and Plasma Exchange. Dr. Klapper has published most often in Transfusion. Dr. Klapper's most frequent co-authors are Samuel Herschel Pepkowitz, MD, Kathryn P. Cardoza and Oren A. Friedman, MD.

Papers24
Years published2008 to 2024

Dr. Klapper's papers by year, 2009 to 2024

Topics Dr. Klapper writes about most

  • Blood Donors
  • Blood Grouping and Crossmatching
  • Plasma Exchange
  • Antibodies, Viral
  • Blood Component Transfusion
  • Blood Transfusion
  • COVID-19
  • Isoantibodies

Dr. Klapper's most frequent co-authors

Recent publications by Dr. Klapper

See all 24 publications and co-authors

See who Dr. Klapper researches with

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

How network discovery works

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

Dr. Ellen Klapper received $116 in industry payments from 2018 to 2020

CMS Open Payments shows 2 general payments to Dr. Klapper from 2 drug and device companies from 2018 to 2020. Education make up the largest share, 83% of the total. Sanofi and Genzyme US Companies paid the most, $96.

General payments to Dr. Klapper by program year, 2018 to 2020

General payments to Dr. Klapper by kind, 2018 to 2020

$116in total
  • Education$9683%
  • Food and beverage$2017%

Companies that paid Dr. Klapper the most, 2018 to 2020

Share is of all general payments to this clinician.

See all payments to Dr. Klapper

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

Dr. Ellen Klapper graduated from David Geffen School of Medicine at UCLA

Dr. Klapper graduated from David Geffen School of Medicine at UCLA in 1984.

  1. Medical schoolDavid Geffen School of Medicine at UCLA
  2. Board certified in anatomic pathology & clinical pathologyAmerican Board of Pathology

Source: Dmand AI Professional Profile Data

Dr. Ellen Klapper accepts plans from 1 insurance carrier

Dr. Klapper 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. Ellen Klapper'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)
MIPS scores, telehealth, assignment and procedure percentilesClinician 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. Ellen Klapper

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. Ellen Klapper's NPI number?

Dr. Ellen Klapper's NPI number is 1487650966. It was assigned on June 21, 2005, and it is active in the NPI Registry.

What kind of doctor is Dr. Ellen Klapper?

Dr. Ellen Klapper is a pathologist in West Hollywood, California. The primary specialty in the NPI Registry is Anatomic Pathology & Clinical Pathology Physician (taxonomy code 207ZP0102X).

Where does Dr. Ellen Klapper practice?

Dr. Klapper practices at 8700 Beverly Blvd, Los Angeles, CA 90048. Dr. Klapper's primary practice is Cedars-Sinai Medical Center in Los Angeles, California, part of Cedars-Sinai Health System.

What is Dr. Ellen Klapper's office phone number?

The practice phone on file for Dr. Klapper is (310) 423-5000.

What is Dr. Ellen Klapper's medical license number?

Dr. Klapper holds California license G62356.

Which hospitals is Dr. Ellen Klapper affiliated with?

Dr. Klapper practices at Cedars-Sinai Medical Center in Los Angeles, California.

What medical group is Dr. Ellen Klapper part of?

Dr. Klapper is linked to Cedars-Sinai Medical Group.

Does Dr. Ellen Klapper accept Medicare?

Yes. CMS data shows Dr. Klapper billed Medicare for 260 services in 2024.

What is Dr. Ellen Klapper's MIPS score?

Dr. Klapper's MIPS final score for performance year 2024 is 89 out of 100, reported as part of a group.

How many Medicare patients does Dr. Ellen Klapper see?

CMS counts 192 Medicare patients who saw Dr. Klapper in 2024, with an average age of 70.

Show 8 more questionsShow fewer questions

Is Dr. Ellen Klapper board certified?

Yes. Dr. Klapper is board certified in anatomic pathology & clinical pathology by the American Board of Pathology.

What services does Dr. Ellen Klapper bill to Medicare?

In 2024, Dr. Klapper's most billed Medicare services were lab and pathology test (86077), surgery: heart and blood vessels (36514) and surgery: blood and lymph system (38206).

Where did Dr. Ellen Klapper go to medical school?

Dr. Klapper graduated from David Geffen School of Medicine at UCLA in 1984.

Has Dr. Ellen Klapper received payments from drug or device companies?

CMS Open Payments shows $116 in general payments to Dr. Klapper from 2 companies from 2018 to 2020. The largest total came from Sanofi and Genzyme US Companies.

How long has Dr. Ellen Klapper been practicing?

Dr. Klapper graduated from medical school in 1984, 42 years ago.

Does Dr. Ellen Klapper do research?

Dmand AI links 24 publications to Dr. Klapper, published from 2008 to 2024.

Who does Dr. Ellen Klapper publish with?

Dr. Klapper's most frequent co-authors are Samuel Herschel Pepkowitz, MD (6 shared papers), Kathryn P. Cardoza (2 shared papers) and Oren A. Friedman, MD (2 shared papers).

What insurance does Dr. Ellen Klapper accept?

Dr. Klapper 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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