NPPES file of Aug 9, 2026

Lindsay Rosenthal Klein, MD

Internal Medicine Physician · Concord, CA

Lindsay Rosenthal Klein, MD is an internal medicine physician with a practice address in Concord, California, and NPI 1962781658, issued on Aug 11, 2011. Check the license (California A122891, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1962781658
Name
Lindsay Rosenthal Klein
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
A122891 CA
Self-reported in NPPES; status is on the state search
Practice location
2700 Grant St, Concord, CA 94520
Phone
(925) 677-0500
Enumerated
Aug 11, 2011
Record last updated
Jun 16, 2015 (not updated in 11 years: call before relying on the address or phone)
Fax
(925) 677-0519
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 2700 Grant St

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

  1. Jason AdajarPhysical Therapist1689187825
  2. Johnson Adeyanju, M.D.Internal Medicine Physician1467403147
  3. Susan Adler-Bressler, M.D.Family Medicine Physician1588615207
  4. Kris Arneson, P.T.Physical Therapist1669596425
  5. Alicia Bakkum, NPClinical Nurse Specialist1982793220
  6. Mike Bannout, M.D.Internal Medicine Physician1598784662

Verify Lindsay Rosenthal 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 A122891
    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

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38% fewer Medicare Part D claims than the average internal medicine physician in 2024

1,973 Medicare Part D claims for 367 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Lindsay Klein1,973
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium254 claims
  2. Levothyroxine Sodium196 claims
  3. Rosuvastatin Calcium131 claims
  4. Losartan Potassium91 claims
  5. Pravastatin Sodium90 claims
  6. Amlodipine Besylate85 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.

Lindsay Rosenthal Klein among 17,696 internal medicine physician records in California

Lindsay Rosenthal Klein, MD is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 66% of them.

  • NPI issued2011 · 66% of these records are older, 32% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileNo · 63% of these records are
  • Record last updated2015 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Internal Medicine Physician providers in California

There are 17,696 internal medicine physician records in California.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Johnson Adeyanju, M.D.Concord, CA 945201467403147
  2. Jose Arias-VeraConcord, CA 945201497826283
  3. Mike Bannout, M.D.Concord, CA 945201598784662
  4. David Bressler, M.D.Concord, CA 945201962456210
  5. Anna Chang, M.D.Concord, CA 945201568402931
  6. Lori Danze, M.D.Concord, CA 945201003923236
  7. Robert Davidson, M.D.Concord, CA 945201659311108
  8. Chinnavuth De Monteiro, M.D.Concord, CA 945201558392449

Common questions

What is Lindsay Rosenthal Klein, MD's NPI number?

Lindsay Rosenthal Klein, MD's National Provider Identifier (NPI) is 1962781658, issued on Aug 11, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Lindsay Rosenthal Klein, MD located?

The NPPES record lists a practice address at 2700 Grant St, Concord, CA, 94520. Phone: (925) 677-0500. Providers update this record themselves, so call before visiting.

How can I verify Lindsay Rosenthal Klein, MD's license?

NPPES lists California license number A122891, 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 Lindsay Rosenthal Klein, MD prescribe under Medicare Part D?

In 2024, Lindsay Rosenthal Klein, MD had 1,973 Medicare Part D claims for 367 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

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.