NPPES file of Aug 9, 2026

David P. Slack, MD

Specialist · Olympia, WA

David P. Slack, MD is a specialist with a practice address in Olympia, Washington, and NPI 1356351795, issued on Aug 8, 2006. Check the license (Washington MD00044806, as entered in NPPES) with the Washington board that licenses this profession; 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
1356351795
Name
David P. Slack
Credential
MD
Primary taxonomy
Specialist 174400000X
License number
MD00044806 WA
Self-reported in NPPES; status is on the state search
Practice location
700 Lilly RD NE, Olympia, WA 98506
Phone
(509) 241-7938
Enumerated
Aug 8, 2006
Record last updated
May 5, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(360) 923-7089
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 700 Lilly RD NE

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

  1. Sharon Abegg, M.D.Psychiatry Physician1437291143
  2. Mary Aesoph, AUDAudiologist1710233978
  3. Krystle Agtarap, PASurgical Physician Assistant1972907590
  4. Elizabeth Alberti, P.A.Physician Assistant1215087937
  5. Stephen Albrecht, M.D.Family Medicine Physician1538286026
  6. Amber An, DOGeriatric Medicine (Internal Medicine) Physician1538335443

Verify David P. Slack in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Washington board licenses this profession
    Search for license MD00044806
    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
Find the Washington license search

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68% fewer Medicare Part D claims than the average specialist in 2024

443 Medicare Part D claims for 72 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims. 115 claims were for opioids.

  1. David Slack443
  2. Specialty average1,380

Most prescribed

  1. Morphine Sulfate45 claims
  2. Prednisone32 claims
  3. Morphine Sulfate Er27 claims
  4. Furosemide18 claims
  5. Tizanidine Hcl17 claims
  6. Oxycodone Hcl16 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.

David P. Slack among 2,609 specialist records in Washington

David P. Slack, MD is one of 2,609 specialist records with a practice address in Washington. 4% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 2% of them.

  • NPI issued2006 · 2% of these records are older, 83% newer
  • In a Medicare fileYes · 4% of these records are
  • In the CMS Doctors and Clinicians fileNo · 2% of these records are
  • Record last updated2021 · 92% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

111 specialist records list a practice address in Olympia

They are 111 of the 5,034 NPPES records with a practice address in Olympia, and 2,609 specialist records in Washington.

The 8 specialist records with the nearest ZIP codes

  1. Gregory Bell, M.D.Olympia, WA 985061538117205
  2. Rex Bolin, MDOlympia, WA 985061831152750
  3. John Brottem, MDOlympia, WA 985061972566818
  4. Jeffrey Christenson, MDOlympia, WA 985061932162872
  5. Karen Fukui, M.D.Olympia, WA 985061932176427
  6. Virgil Knackstedt, M.D.Olympia, WA 985061083605307
  7. Jon Kooiker, M.D.Olympia, WA 985061568420180
  8. Cole Mason, M.D.Olympia, WA 985061982671475

Common questions

What is David P. Slack, MD's NPI number?

David P. Slack, MD's National Provider Identifier (NPI) is 1356351795, issued on Aug 8, 2006. An NPI identifies a provider in billing; it is not a license.

Where is David P. Slack, MD located?

The NPPES record lists a practice address at 700 Lilly RD NE, Olympia, WA, 98506. Phone: (509) 241-7938. Providers update this record themselves, so call before visiting.

How can I verify David P. Slack, MD's license?

NPPES lists Washington license number MD00044806, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.

How much does David P. Slack, MD prescribe under Medicare Part D?

In 2024, David P. Slack, MD had 443 Medicare Part D claims for 72 beneficiaries; the average among specialist prescribers was 1,380. 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.