Jennifer Ann Irwin, M.D.
Psychiatry Physician · Tacoma, WA
Jennifer Ann Irwin, M.D. is a psychiatry physician with a practice address in Tacoma, Washington, and NPI 1356505283, issued on Jul 10, 2008. Check the license (Washington MD00045875, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Jennifer Ann Irwin
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- MD00045875 WA
Self-reported in NPPES; status is on the state search - Practice location
- 618 N G St, Tacoma, WA 98403
- Phone
- (253) 779-5519
- Enumerated
- Jul 10, 2008
- Record last updated
- Jul 10, 2008 (not updated in 18 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20180208003120); accepts Medicare assignment
- Medical or professional school
- Michigan State University College Of Human Medicine, 1989
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 1,195 in Washington → Look up another NPI →
Verify Jennifer Ann Irwin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD00045875Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
88% more Medicare Part D claims than the average psychiatry physician in 2024
1,879 Medicare Part D claims for 140 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims.
Most prescribed
- Quetiapine Fumarate154 claims
- Lamotrigine131 claims
- Trazodone Hcl92 claims
- Venlafaxine Hcl Er82 claims
- Aripiprazole78 claims
- Bupropion Xl69 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: $345.43
3 payments; by number, the most common kind was food and beverage; the largest payer was Iti, Inc. (d/b/a Intra-Cellular Therapies, Inc.). The 13,693 providers of this specialty with any payment received $4,954.93 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.
Bills Medicare through one group practice
- Western Psychological And Counseling Services LLCTacoma, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jennifer Ann Irwin among 1,195 psychiatry physician records in Washington
Jennifer Ann Irwin, M.D. is one of 1,195 psychiatry physician records with a practice address in Washington. 61% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 60% of them.
- NPI issued2008 · 60% of these records are older, 36% newer
- In a Medicare fileYes · 61% of these records are
- In the CMS Doctors and Clinicians fileYes · 39% of these records are
- Graduated1989 · median 2007 among the 462 with a school on file
- Record last updated2008 · 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 2084P0800X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatry Physician providers in Washington
There are 1,195 psychiatry physician records in Washington.
All 1,195 in Washington → Every provider in Tacoma → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Julia Lin, MDTacoma, WA 984031518040906
- Tong Shen, M.D.Tacoma, WA 984031447360342
- Kirstin Kirschner, MDTacoma, WA 984021649221490
- Agnes Kocsis, MDTacoma, WA 984041518032374
- Rie Sharky, M.D.Tacoma, WA 984021730576778
- Mary Simonson, M.D.Tacoma, WA 984021316948359
- Shane Verhoef, M.D.Tacoma, WA 984021114311255
- Laura Wittmann, MDTacoma, WA 984021265964084
Common questions
What is Jennifer Ann Irwin, M.D.'s NPI number?
Jennifer Ann Irwin, M.D.'s National Provider Identifier (NPI) is 1356505283, issued on Jul 10, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Jennifer Ann Irwin, M.D. located?
The NPPES record lists a practice address at 618 N G St, Tacoma, WA, 98403. Phone: (253) 779-5519. Providers update this record themselves, so call before visiting.
How can I verify Jennifer Ann Irwin, M.D.'s license?
NPPES lists Washington license number MD00045875, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Jennifer Ann Irwin, M.D. prescribe under Medicare Part D?
In 2024, Jennifer Ann Irwin, M.D. had 1,879 Medicare Part D claims for 140 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.