NPPES file of Aug 9, 2026

Irene Tang, MD

Obstetrics & Gynecology Physician · Seattle, WA

Irene Tang, MD is an obstetrics & gynecology physician with a practice address in Seattle, Washington, and NPI 1104529221, issued on Mar 27, 2023. Check the license (Washington ML61424949, as entered in NPPES) on the Washington Medical Commission; 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
1104529221
Name
Irene Tang
Credential
MD
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
ML61424949 WA
Self-reported in NPPES; status is on the state search
Practice location
University OF Washington Dept OF Obgyn, Seattle, WA 98195
Phone
(206) 598-5500
Enumerated
Mar 27, 2023
Record last updated
Apr 7, 2023
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Irene Tang in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license ML61424949
    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 Washington license search

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62% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

62 Medicare Part D claims for 33 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims. 22 claims were for opioids.

  1. Irene Tang62
  2. Specialty average165

Most prescribed

  1. Oxycodone Hcl17 claims
  2. Ibuprofen12 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: $1,325.00

2 payments; by number, the most common kind was education; the largest payer was Intuitive Surgical, Inc. The 21,429 providers of this specialty with any payment received $1,030.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Irene Tang$1,325.00
  2. Specialty average$1,030.61

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

Irene Tang among 1,038 obstetrics & gynecology physician records in Washington

Irene Tang, MD is one of 1,038 obstetrics & gynecology physician records with a practice address in Washington. 68% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 98% of them.

  • NPI issued2023 · 98% of these records are older, 2% newer
  • In a Medicare fileYes · 68% of these records are
  • In the CMS Doctors and Clinicians fileNo · 56% of these records are
  • Record last updated2023 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Obstetrics & Gynecology Physician providers in Washington

There are 1,038 obstetrics & gynecology physician records in Washington.

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Lisa Callegari, MDSeattle, WA 981951003980319
  2. Katherine Debiec, MDSeattle, WA 981951891801114
  3. Alison Desano, MDSeattle, WA 981951902912611
  4. Carolyn Gardella, MDSeattle, WA 981951346320744
  5. Kelley Hanrahan, MDSeattle, WA 981951275529307
  6. Amie Hollard, MDSeattle, WA 981951508814104
  7. Katherine Johnson, MDSeattle, WA 981951295707289
  8. Jessie Marrs, MDSeattle, WA 981951588773378

Common questions

What is Irene Tang, MD's NPI number?

Irene Tang, MD's National Provider Identifier (NPI) is 1104529221, issued on Mar 27, 2023. An NPI identifies a provider in billing; it is not a license.

Where is Irene Tang, MD located?

The NPPES record lists a practice address at University OF Washington Dept OF Obgyn, Seattle, WA, 98195. Phone: (206) 598-5500. Providers update this record themselves, so call before visiting.

How can I verify Irene Tang, MD's license?

NPPES lists Washington license number ML61424949, 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 Irene Tang, MD prescribe under Medicare Part D?

In 2024, Irene Tang, MD had 62 Medicare Part D claims for 33 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.