Scott Irwin, MD
Psychiatry Physician · San Diego, CA
Scott Irwin, MD is a psychiatry physician with a practice address in San Diego, California, and NPI 1225117716, issued on Nov 3, 2006. Check the license (California A84936, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Scott Irwin
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- A84936 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4311 Third Ave, San Diego, CA 92103
- Phone
- (619) 688-1600
- Enumerated
- Nov 3, 2006
- Entity
- Type 1 · individual
Also registered at 4311 Third Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Gary Buckholz, MDFamily Medicine Physician1174601702
- Charles Lewis, MDFamily Medicine Physician1942358445
- Julie Prazich, MDGeneral Practice Physician1861577736
Verify Scott Irwin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A84936Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
74% fewer Medicare Part D claims than the average psychiatry physician in 2024
260 Medicare Part D claims for 25 beneficiaries, against an average of 1,010 among the 32,287 providers of this specialty who prescribed in Part D.
Most prescribed
- Clonazepam43 claims
- Lorazepam37 claims
- Venlafaxine Hcl Er28 claims
- Bupropion Xl24 claims
- Sertraline Hcl22 claims
- Alprazolam13 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 Medicare quality score for 2023: 87.7 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).
One hospital or facility affiliation
- Cedars-Sinai Medical CenterWest Hollywood, CA · Acute Care Hospitals5 of 5 stars
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Psychiatry Physician providers in California
There are 7,890 psychiatry physician records in California.
Other psychiatry physician records in California
- Nancy Aaen, MDNapa, CA1609816669
- Criselda Abad-Santos, M.D.Woodland Hills, CA1760461826
- Mekabiz Abaian, MDSan Bernardino, CA1891090163
- Kafia Abbasi, M.D.French Camp, CA1215114897
- Michele Abbasi, M.D.Westlake Village, CA1093940330
- Zohaib AbbasiMartinez, CA1013392224
- Chester Abbott, M.D.Pasadena, CA1053442186
- Nancy Abdelmalak, M.D.Elk Grove, CA1912137498
- Ezzat Abdelmalek, M.DDana Point, CA1992828826
- Ahmed AbdelrazekSacramento, CA1669092128
Common questions
What is Scott Irwin, MD's NPI number?
Scott Irwin, MD's National Provider Identifier (NPI) is 1225117716, issued on Nov 3, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Scott Irwin, MD located?
The NPPES record lists a practice address at 4311 Third Ave, San Diego, CA, 92103. Phone: (619) 688-1600. Providers update this record themselves, so call before visiting.
How can I verify Scott Irwin, MD's license?
NPPES lists California license number A84936, 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 Scott Irwin, MD prescribe under Medicare Part D?
In 2024, Scott Irwin, MD had 260 Medicare Part D claims for 25 beneficiaries; the average among psychiatry physician prescribers was 1,010. Part D covers Medicare prescriptions only.
What is Scott Irwin, MD's Medicare quality score?
The 2023 MIPS final score is 87.7 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), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.