NPPES file of Aug 9, 2026

Patrick Ahern, MD

Pain Medicine (Anesthesiology) Physician · Irvine, CA

Patrick Ahern, MD is a pain medicine (anesthesiology) physician with a practice address in Irvine, California, and NPI 1154883072, issued on Apr 1, 2019. Check the license (California 186037, 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
1154883072
Name
Patrick Ahern
Credential
MD
Primary taxonomy
Pain Medicine (Anesthesiology) Physician 207LP2900X
License numbers
186037 CA
V1722 TX
Self-reported in NPPES; status is on the state search
Practice location
1 Medical Plaza Drive, Irvine, CA 92697
Phone
(949) 824-7246
Enumerated
Apr 1, 2019
Record last updated
Jun 20, 2024
Medicare enrollment
Enrolled (PECOS I20240705000562); accepts Medicare assignment
Medical or professional school
University Of Texas Southwestern Medical School At Dallas, 2023
Telehealth
Offers telehealth (CMS)
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 1 Medical Plaza Drive

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

  1. Anna Betlachin, MDEndocrinology, Diabetes & Metabolism Physician1396190567
  2. Patrick Chen, M.D.Neurocritical Care Physician1295198000
  3. Maria Corona, PHDClinical Neuropsychologist1487912960
  4. Chloe Courchesne, MDFamily Medicine Physician1255864021
  5. Erin Fromm, FNP-CFamily Nurse Practitioner1073255238
  6. Partha Gonavaram, MDFamily Medicine Physician1053473090

Verify Patrick Ahern in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 186037
    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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65% fewer Medicare Part D claims than the average pain medicine (anesthesiology) physician in 2024

617 Medicare Part D claims for 254 beneficiaries, against an average of 1,750 among the 2,982 providers of this specialty who prescribed in Part D. Brand-name drugs were 3% of claims. 95 claims were for opioids.

  1. Patrick Ahern617
  2. Specialty average1,750

Most prescribed

  1. Gabapentin126 claims
  2. Pregabalin74 claims
  3. Duloxetine Hcl70 claims
  4. Methocarbamol41 claims
  5. Meloxicam39 claims
  6. Hydrocodone-Acetaminophen37 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: $344.45

3 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 2,789 providers of this specialty with any payment received $3,225.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Patrick Ahern$344.45
  2. Specialty average$3,225.41

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

Bills Medicare through one group practice

  1. The San Antonio Orthopaedic Group LLPSan Antonio, TX

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

Pain Medicine (Anesthesiology) Physician providers in California

There are 536 pain medicine (anesthesiology) physician records in California.

Other pain medicine (anesthesiology) physician records in California

  1. Shahram Abbassi, MDArcata, CA1396774139
  2. Alireza Abdollahi-FardFresno, CA1205161932
  3. Chris Abrecht, M.D.San Francisco, CA1013283837
  4. Deepak Agarwal, D.O M.P.H.Santa Barbara, CA1417342981
  5. Rishi Agarwal, M.D.Pasadena, CA1659634798
  6. Anuj Aggarwal, MDStanford, CA1659703288
  7. Charles Aguilar, M.D.Sacramento, CA1215331426
  8. Ricardo Aguirre, M.D.San Pedro, CA1831298389
  9. Farshad Ahadian, M.D.La Jolla, CA1205854247
  10. Bashar Ahmed, M.D.Santa Rosa, CA1548675663

Common questions

What is Patrick Ahern, MD's NPI number?

Patrick Ahern, MD's National Provider Identifier (NPI) is 1154883072, issued on Apr 1, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Patrick Ahern, MD located?

The NPPES record lists a practice address at 1 Medical Plaza Drive, Irvine, CA, 92697. Phone: (949) 824-7246. Providers update this record themselves, so call before visiting.

How can I verify Patrick Ahern, MD's license?

NPPES lists California license number 186037, 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 Ahern, MD prescribe under Medicare Part D?

In 2024, Patrick Ahern, MD had 617 Medicare Part D claims for 254 beneficiaries; the average among pain medicine (anesthesiology) physician prescribers was 1,750. 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.