NPPES file of Aug 9, 2026

Patrick John Donley, M.D.

Anesthesiology Physician · Torrance, CA

Patrick John Donley, M.D. is an anesthesiology physician with a practice address in Torrance, California, and NPI 1558473413, issued on Aug 31, 2006. Check the license (California G64925, 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
1558473413
Name
Patrick John Donley
Credential
M.D.
Primary taxonomy
Anesthesiology Physician 207L00000X
License number
G64925 CA
Self-reported in NPPES; status is on the state search
Practice location
3330 Lomita Blvd, Torrance, CA 90505
Phone
(310) 325-9110
Enumerated
Aug 31, 2006
Record last updated
Apr 30, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(310) 784-8777
Medicare enrollment
Enrolled (PECOS I20040526000623); accepts Medicare assignment
Medical or professional school
University Of California, Geffen School Of Medicine, 1987
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 3330 Lomita Blvd

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

  1. Frank Albano, MS, RDNRegistered Dietitian1235987447
  2. Mark Ancheta, M.D.Anesthesiology Physician1750303020
  3. Elisa Anhalt, MDEmergency Medicine Physician1194773424
  4. Michael Anzivino, MDCritical Care Medicine (Internal Medicine) Physician1164479119
  5. Anthony Arellano-Kruse, M.D.Anesthesiology Physician1144358755
  6. Gregory Baetge, M.D.Anatomic Pathology & Clinical Pathology Physician1962507657

Verify Patrick John Donley in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G64925
    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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92% fewer Medicare Part D claims than the average anesthesiology physician in 2024

31 Medicare Part D claims, against an average of 402 among the 4,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Patrick Donley31
  2. Specialty average402

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.

Bills Medicare through one group practice

  1. Torrance Anesthesia Medical Group Inc.Torrance, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Patrick John Donley among 7,571 anesthesiology physician records in California

Patrick John Donley, M.D. is one of 7,571 anesthesiology physician records with a practice address in California. 71% 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, 53% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated1987 · median 2006 among the 4,868 with a school on file
  • Record last updated2014 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

136 anesthesiology physician records list a practice address in Torrance

They are 136 of the 8,901 NPPES records with a practice address in Torrance, and 7,571 anesthesiology physician records in California.

The 8 anesthesiology physician records with the nearest ZIP codes

  1. Ruth Ackermann, M.D.Torrance, CA 905051336175082
  2. Drew Cheng, M.D.Torrance, CA 905051306802541
  3. James Conner, M.D.Torrance, CA 905051336191014
  4. Joseph Farlo, M.DTorrance, CA 905051386663540
  5. Kianusch Kiai, MDTorrance, CA 905051942241740
  6. Deborah Lynn, M.D.Torrance, CA 905051194776849
  7. Michael Mehmedbasich, M.D.Torrance, CA 905051538199195
  8. Jeanette Oka, M.D.Torrance, CA 905051013936194

Common questions

What is Patrick John Donley, M.D.'s NPI number?

Patrick John Donley, M.D.'s National Provider Identifier (NPI) is 1558473413, issued on Aug 31, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Patrick John Donley, M.D. located?

The NPPES record lists a practice address at 3330 Lomita Blvd, Torrance, CA, 90505. Phone: (310) 325-9110. Providers update this record themselves, so call before visiting.

How can I verify Patrick John Donley, M.D.'s license?

NPPES lists California license number G64925, 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 Patrick John Donley, M.D. prescribe under Medicare Part D?

In 2024, Patrick John Donley, M.D. had 31 Medicare Part D claims; the average among anesthesiology physician prescribers was 402. 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.