Leslie A. Dudley, MD
Internal Medicine Physician · Pasadena, CA
Leslie A. Dudley, MD is an internal medicine physician with a practice address in Pasadena, California, and NPI 1255303905, issued on Feb 6, 2006. Check the license (California A59598, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Leslie A. Dudley
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A59598 CA
Self-reported in NPPES; status is on the state search - Practice location
- 65 N Madison Ave, Pasadena, CA 91101
- Phone
- (626) 792-3141
- Enumerated
- Feb 6, 2006
- Record last updated
- Feb 2, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (626) 792-9193
- Medicare enrollment
- Enrolled (PECOS I20090324000040); accepts Medicare assignment
- Medical or professional school
- University Of South Alabama College Of Medicine, 1984
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 65 N Madison Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Joseph Abe, DDSDentist1871790923
- Mark AshmoreOptician1770743395
- Terry Becker, MEDICAL DOCTORDiagnostic Radiology Physician1780674374
- Alena Bilemjian, MAMarriage & Family Therapist1831830652
- Norma CamachoAudiologist-Hearing Aid Fitter1669596631
- Allison Curtis, NPFamily Nurse Practitioner1083808703
Verify Leslie A. Dudley in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A59598Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.8 times the Medicare Part D claims of the average internal medicine physician in 2024
12,103 Medicare Part D claims for 653 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 258 claims were for opioids.
Most prescribed
- Levothyroxine Sodium865 claims
- Atorvastatin Calcium636 claims
- Amlodipine Besylate377 claims
- Losartan Potassium359 claims
- Metoprolol Succinate345 claims
- Lisinopril324 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): 80.5 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- The Huntington Medical FoundationPasadena, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Leslie A. Dudley among 17,696 internal medicine physician records in California
Leslie A. Dudley, 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 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1984 · median 2004 among the 11,065 with a school on file
- Record last updated2012 · 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).
137 internal medicine physician records list a practice address in Pasadena
They are 137 of the 10,525 NPPES records with a practice address in Pasadena, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Pasadena → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Warren Brown, M.D.Pasadena, CA 911011083776322
- Edmond Clinton, M.D.Pasadena, CA 911011720094097
- Garland Dodoo, M.D.Pasadena, CA 911011043262421
- Bianca Grigorian, MDPasadena, CA 911011427053693
- Roy Jackson, M.D.Pasadena, CA 911011669424982
- Stuart Miller, MDPasadena, CA 911011467425090
- Prabhat Mukerjee, M.D.Pasadena, CA 911011306136759
- Lillian Ngaw, M.D.Pasadena, CA 911011154373538
Common questions
What is Leslie A. Dudley, MD's NPI number?
Leslie A. Dudley, MD's National Provider Identifier (NPI) is 1255303905, issued on Feb 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Leslie A. Dudley, MD located?
The NPPES record lists a practice address at 65 N Madison Ave, Pasadena, CA, 91101. Phone: (626) 792-3141. Providers update this record themselves, so call before visiting.
How can I verify Leslie A. Dudley, MD's license?
NPPES lists California license number A59598, 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 Leslie A. Dudley, MD prescribe under Medicare Part D?
In 2024, Leslie A. Dudley, MD had 12,103 Medicare Part D claims for 653 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Leslie A. Dudley, MD's MIPS final score?
The 2023 MIPS final score is 80.5 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.