NPPES file of Aug 9, 2026

Susan E. Holt, PAC

Allergy & Immunology Physician · Seattle, WA

Susan E. Holt, PAC is an allergy & immunology physician with a practice address in Seattle, Washington, and NPI 1720051618, issued on Feb 10, 2006. Check the license (Washington PA10001006, as entered in NPPES) on the Washington Medical Commission; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1720051618
Name
Susan E. Holt
Credential
PAC
Primary taxonomy
Allergy & Immunology Physician 207K00000X
License number
PA10001006 WA
Self-reported in NPPES; status is on the state search
Practice location
1100 9TH Ave, Seattle, WA 98101
Phone
(206) 223-6600
Enumerated
Feb 10, 2006
Record last updated
May 14, 2008 (not updated in 18 years: call before relying on the address or phone)
Medicaid ID
8368136 WA
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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Also registered at 1100 9TH Ave

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

  1. Barry Aaronson, MDHospitalist Physician1952418345
  2. David Aboulafia, MDHematology & Oncology Physician1043269392
  3. Deborah Abrams, M.D.Hematology & Oncology Physician1902974835
  4. Alvin Aceron, ARNPAdult Health Nurse Practitioner1639488562
  5. Ream AdeebAdult Health Nurse Practitioner1760868855
  6. Steven Adler, MDDiagnostic Ultrasound Physician1639108046

Verify Susan E. Holt in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license PA10001006
    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

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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Susan E. Holt among 90 allergy & immunology physician records in Washington

Susan E. Holt, PAC is one of 90 allergy & immunology physician records with a practice address in Washington. 70% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 14% of them.

  • NPI issued2006 · 14% of these records are older, 40% newer
  • In a Medicare fileNo · 70% of these records are
  • In the CMS Doctors and Clinicians fileNo · 51% of these records are
  • Record last updated2008 · 66% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207K00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Allergy & Immunology Physician providers in Washington

There are 90 allergy & immunology physician records in Washington. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 allergy & immunology physician records with the nearest ZIP codes

  1. Rahool DaveSeattle, WA 981011174919633
  2. Joyce Lammert, MDSeattle, WA 981011780699454
  3. David Robinson, MDSeattle, WA 981011629044284
  4. Mary Farrington, MDSeattle, WA 981051679546089
  5. Susan Xie, M.D.Seattle, WA 981051134651383
  6. Timothy Baltz, M.D.Seattle, WA 981121154471068
  7. William Butler, MDSeattle, WA 981121588709877
  8. Margaret Strub, MDSeattle, WA 981121528146123

Common questions

What is Susan E. Holt, PAC's NPI number?

Susan E. Holt, PAC's National Provider Identifier (NPI) is 1720051618, issued on Feb 10, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Susan E. Holt, PAC located?

The NPPES record lists a practice address at 1100 9TH Ave, Seattle, WA, 98101. Phone: (206) 223-6600. Providers update this record themselves, so call before visiting.

How can I verify Susan E. Holt, PAC's license?

NPPES lists Washington license number PA10001006, 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.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.