Irene Patricia Leech, M.D.
Pulmonary Disease Physician · Long Beach, CA
Irene Patricia Leech, M.D. is a pulmonary disease physician with a practice address in Long Beach, California, and NPI 1497853592, issued on Sep 20, 2006. Check the license (California G41993, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Irene Patricia Leech
- Credential
- M.D.
- Primary taxonomy
- Pulmonary Disease Physician 207RP1001X
- License number
- G41993 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1040 Elm Ave Ste 307, Long Beach, CA 90813
- Phone
- (562) 590-8509
- Enumerated
- Sep 20, 2006
- Record last updated
- Sep 11, 2025
- Fax
- (562) 435-8477
- Medicaid ID
- 0G4199300 CA
- Entity
- Type 1 · individual
8 nearest pulmonary disease physician records → All 1,443 in California → Look up another NPI →
Verify Irene Patricia Leech in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G41993Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
65% fewer Medicare Part D claims than the average pulmonary disease physician in 2024
495 Medicare Part D claims for 51 beneficiaries, against an average of 1,425 among the 11,596 providers of this specialty who prescribed in Part D. 13 claims were for opioids.
Most prescribed
- Atorvastatin Calcium50 claims
- Amlodipine Besylate31 claims
- Metformin Hcl24 claims
- Metoprolol Succinate19 claims
- Albuterol Sulfate Hfa18 claims
- Levothyroxine Sodium15 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.
Industry payments in 2024: $125.00
1 payment: food and beverage; the largest payer was GlaxoSmithKline, LLC. The 8,806 providers of this specialty with any payment received $5,159.88 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Irene Patricia Leech among 1,443 pulmonary disease physician records in California
Irene Patricia Leech, M.D. is one of 1,443 pulmonary disease physician records with a practice address in California. 84% 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 7% of them.
- NPI issued2006 · 7% of these records are older, 51% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileNo · 74% of these records are
- Record last updated2025 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RP1001X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pulmonary Disease Physician providers in California
There are 1,443 pulmonary disease physician records in California.
All 1,443 in California → Every provider in Long Beach → Pulmonary Disease Physician nationwide →
The 8 pulmonary disease physician records with the nearest ZIP codes
- Bahman Chavoshan, MDLong Beach, CA 908131255480661
- Jyoti Datta, MDLong Beach, CA 908131568535615
- Shyam Rao, M.D.Long Beach, CA 908131568729580
- Eugene Van, D.O.Long Beach, CA 908131952789810
- Fady Youssef, M.D.Long Beach, CA 908131386904720
- Sarathi BhattacharyyaLong Beach, CA 908081356703995
- Thomas Jiang, M.D.Long Beach, CA 908081861719486
- Jimmy Johannes, M.D.Long Beach, CA 908081275837205
Common questions
What is Irene Patricia Leech, M.D.'s NPI number?
Irene Patricia Leech, M.D.'s National Provider Identifier (NPI) is 1497853592, issued on Sep 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Irene Patricia Leech, M.D. located?
The NPPES record lists a practice address at 1040 Elm Ave Ste 307, Long Beach, CA, 90813. Phone: (562) 590-8509. Providers update this record themselves, so call before visiting.
How can I verify Irene Patricia Leech, M.D.'s license?
NPPES lists California license number G41993, 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 Irene Patricia Leech, M.D. prescribe under Medicare Part D?
In 2024, Irene Patricia Leech, M.D. had 495 Medicare Part D claims for 51 beneficiaries; the average among pulmonary disease physician prescribers was 1,425. 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.