NPPES file of Aug 9, 2026

Liviu Klein, MD, MS

Advanced Heart Failure and Transplant Cardiology Physician · San Francisco, CA

Liviu Klein, MD, MS is an advanced heart failure and transplant cardiology physician with a practice address in San Francisco, California, and NPI 1235199340, issued on Mar 23, 2006. Check the license (California C54894, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1235199340
Name
Liviu Klein
Credential
MD, MS
Primary taxonomy
Advanced Heart Failure and Transplant Cardiology Physician 207RA0001X
License numbers
C54894 CA
036-108381 IL
Self-reported in NPPES; status is on the state search
Practice location
505 Parnassus Ave, San Francisco, CA 94143
Phone
(415) 476-2143
Enumerated
Mar 23, 2006
Record last updated
Oct 14, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20111026000370); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 505 Parnassus Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Alexander Aabedi, MDStudent in an Organized Health Care Education/Training Program1245971480
  2. Kathryn Aaronson, RN, CPNPPediatric Nurse Practitioner1992030951
  3. Sharon AbadaStudent in an Organized Health Care Education/Training Program1003492844
  4. Abul Abbas, MBBSAnatomic Pathology Physician1881652964
  5. Jesse Abelson, MDInternal Medicine Physician1083843817
  6. Rhonald AbitonaAcute Care Nurse Practitioner1164993473

Verify Liviu Klein in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license C54894
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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1% fewer Medicare Part D claims than the average advanced heart failure and transplant cardiology physician in 2024

1,938 Medicare Part D claims for 197 beneficiaries, against an average of 1,965 among the 1,124 providers of this specialty who prescribed in Part D.

  1. Liviu Klein1,938
  2. Specialty average1,965

Most prescribed

  1. Jardiance128 claims
  2. Spironolactone111 claims
  3. Losartan Potassium89 claims
  4. Bumetanide70 claims
  5. Warfarin Sodium70 claims
  6. Atorvastatin Calcium67 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The practice group's MIPS final score for 2023 (Medicare payment program): 74.5 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualitynot scored (reweighted)
  2. Costout of 100 · 30%46.7
  3. Promoting interoperabilityout of 100 · 25%76.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $20,101.50

33 payments; by number, the most common kind was food and beverage; the largest payer was Abbott Laboratories. The 1,027 providers of this specialty with any payment received $10,265.85 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Liviu Klein$20,101
  2. Specialty average$10,266

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

4 hospitals and group practices

  1. Marshall Medical CenterEl Dorado Hills, CA · Acute Care Hospitals4 of 5 stars
  2. Regents OF The University OF CaliforniaSan Francisco, CA
  3. Ucsf Medical Group Business ServicesSan Francisco, CA
  4. University OF California San FranciscoSan Francisco, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Liviu Klein among 115 advanced heart failure and transplant cardiology physician records in California

Liviu Klein, MD, MS is one of 115 advanced heart failure and transplant cardiology physician records with a practice address in California. 98% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 3% of them.

  • NPI issued2006 · 3% of these records are older, 71% newer
  • In a Medicare fileYes · 98% of these records are
  • In the CMS Doctors and Clinicians fileYes · 95% of these records are
  • Graduated1998 · median 2007 among the 109 with a school on file
  • Record last updated2021 · 43% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RA0001X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Advanced Heart Failure and Transplant Cardiology Physician providers in California

There are 115 advanced heart failure and transplant cardiology physician records in California.

The 8 advanced heart failure and transplant cardiology physician records with the nearest ZIP codes

  1. Mandar ArasSan Francisco, CA 941431720377146
  2. Leila BeachSan Francisco, CA 941431861811044
  3. Claudio Bravo Carrillo, M.D.San Francisco, CA 941431003254186
  4. Teresa De Marco, MDSan Francisco, CA 941431669420956
  5. Jacqueline Desjardin, MDSan Francisco, CA 941431699207217
  6. Francesco Fioretti, MDSan Francisco, CA 941431942162144
  7. Sonia Garg, M.D.San Francisco, CA 941431386873370
  8. Michael Martyn, M.D.San Francisco, CA 941431699113407

Common questions

What is Liviu Klein, MD, MS's NPI number?

Liviu Klein, MD, MS's National Provider Identifier (NPI) is 1235199340, issued on Mar 23, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Liviu Klein, MD, MS located?

The NPPES record lists a practice address at 505 Parnassus Ave, San Francisco, CA, 94143. Phone: (415) 476-2143. Providers update this record themselves, so call before visiting.

How can I verify Liviu Klein, MD, MS's license?

NPPES lists California license number C54894, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Liviu Klein, MD, MS prescribe under Medicare Part D?

In 2024, Liviu Klein, MD, MS had 1,938 Medicare Part D claims for 197 beneficiaries; the average among advanced heart failure and transplant cardiology physician prescribers was 1,965. Part D covers Medicare prescriptions only.

What is Liviu Klein, MD, MS's MIPS final score?

The 2023 MIPS final score is 74.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.