NPPES file of Aug 9, 2026

Thomas L. Johnson, MD

Urology Physician · Los Angeles, CA

Thomas L. Johnson, MD is a urology physician with a practice address in Los Angeles, California, and NPI 1881765584, issued on Nov 13, 2006. Check the license (California C41044, 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
1881765584
Name
Thomas L. Johnson
Credential
MD
Primary taxonomy
Urology Physician 208800000X
License number
C41044 CA
Self-reported in NPPES; status is on the state search
Practice location
9100 S Sepulveda Blvd Ste 121, Los Angeles, CA 90045
Phone
(310) 674-6785
Enumerated
Nov 13, 2006
Record last updated
Oct 3, 2019 (not updated in 7 years: call before relying on the address or phone)
Fax
(310) 674-2161
Medicaid ID
00C410441 CA
Medicare enrollment
Enrolled (PECOS I20091110000577); accepts Medicare assignment
Medical or professional school
University Of North Carolina At Chapel Hill School Of Medicine, 1981
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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Verify Thomas L. Johnson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license C41044
    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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13% fewer Medicare Part D claims than the average urology physician in 2024

1,161 Medicare Part D claims for 248 beneficiaries, against an average of 1,340 among the 10,782 providers of this specialty who prescribed in Part D. 15 claims were for opioids.

  1. Thomas Johnson1,161
  2. Specialty average1,340

Most prescribed

  1. Tamsulosin Hcl357 claims
  2. Dutasteride91 claims
  3. Oxybutynin Chloride Er73 claims
  4. Nitrofurantoin Mono-Macro54 claims
  5. Ciprofloxacin Hcl50 claims
  6. Sulfamethoxazole-Trimethoprim39 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 MIPS final score for 2023 (Medicare payment program): 97.5 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score78.3
  2. Costnot scored (reweighted)
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

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

Industry payments in 2024: $122.52

5 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 9,340 providers of this specialty with any payment received $3,800.04 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Thomas Johnson$122.52
  2. Specialty average$3,800.04

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

Thomas L. Johnson among 1,524 urology physician records in California

Thomas L. Johnson, MD is one of 1,524 urology physician records with a practice address in California. 82% 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 8% of them.

  • NPI issued2006 · 8% of these records are older, 51% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated1981 · median 2003 among the 1,049 with a school on file
  • Record last updated2019 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208800000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Urology Physician providers in California

There are 1,524 urology physician records in California.

The 8 urology physician records with the nearest ZIP codes

  1. Kevin Chu, M.D.Los Angeles, CA 900451790147247
  2. Sameer Malhotra, M.D.Los Angeles, CA 900451982656526
  3. Aaron Ovadia, M.D.Los Angeles, CA 900451548581341
  4. Dana Scott, M.D.Los Angeles, CA 900441114109626
  5. Leon Bender, M.D.Los Angeles, CA 900481154350882
  6. Matthew Bui, M.D.Los Angeles, CA 900481578547105
  7. Arnold Cinman, M.D.Los Angeles, CA 900481801867163
  8. Andrew Freedman, M.D.Los Angeles, CA 900481881678852

Common questions

What is Thomas L. Johnson, MD's NPI number?

Thomas L. Johnson, MD's National Provider Identifier (NPI) is 1881765584, issued on Nov 13, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Thomas L. Johnson, MD located?

The NPPES record lists a practice address at 9100 S Sepulveda Blvd Ste 121, Los Angeles, CA, 90045. Phone: (310) 674-6785. Providers update this record themselves, so call before visiting.

How can I verify Thomas L. Johnson, MD's license?

NPPES lists California license number C41044, 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 Thomas L. Johnson, MD prescribe under Medicare Part D?

In 2024, Thomas L. Johnson, MD had 1,161 Medicare Part D claims for 248 beneficiaries; the average among urology physician prescribers was 1,340. Part D covers Medicare prescriptions only.

What is Thomas L. Johnson, MD's MIPS final score?

The 2023 MIPS final score is 97.5 of 100. 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.