NPPES file of Aug 9, 2026

Douglas Scott Mackay, D.D.S.

General Practice Dentistry · Spokane Valley, WA

Douglas Scott Mackay, D.D.S. is a general practice dentistry with a practice address in Spokane Valley, Washington, and NPI 1831373828, issued on Dec 26, 2007. Check the license (Washington DE 00010046, 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
1831373828
Name
Douglas Scott Mackay
Credential
D.D.S.
Primary taxonomy
General Practice Dentistry 1223G0001X
License number
DE 00010046 WA
Self-reported in NPPES; status is on the state search
Practice location
2510 N Pines RD, Spokane Valley, WA 99206
Phone
(509) 891-8700
Enumerated
Dec 26, 2007
Record last updated
Dec 26, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(509) 891-0899
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 2510 N Pines RD

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

  1. Sandra Egger, RNCase Manager/Care Coordinator1295070498
  2. Tammy Majeskey, LMP, MMPMassage Therapist1023440344
  3. Patricia Mullen, MACounselor1780074278
  4. Amy RyanMental Health Counselor1366224529
  5. Linda Schultz, RNCase Manager/Care Coordinator1467797696
  6. Natalie Wescombe, MSW, LCSWAClinical Social Worker1104541820

Verify Douglas Scott Mackay 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 DE 00010046
    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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80% fewer Medicare Part D claims than the average general practice dentistry in 2024

17 Medicare Part D claims for 17 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Douglas Mackay17
  2. Specialty average83

Most prescribed

  1. Amoxicillin14 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.

Douglas Scott Mackay among 3,196 general practice dentistry records in Washington

Douglas Scott Mackay, D.D.S. is one of 3,196 general practice dentistry records with a practice address in Washington. 57% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 41% of them.

  • NPI issued2007 · 41% of these records are older, 37% newer
  • In a Medicare fileYes · 57% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2007 · 72% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223G0001X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

55 general practice dentistry records list a practice address in Spokane Valley

They are 55 of the 2,996 NPPES records with a practice address in Spokane Valley, and 3,196 general practice dentistry records in Washington.

The 8 general practice dentistry records with the nearest ZIP codes

  1. John Belknap, DDSSpokane Valley, WA 992061619980141
  2. Steven Belknap, DDSSpokane Valley, WA 992061154415685
  3. Jay Clark, DDSSpokane Valley, WA 992061457424434
  4. Scott Crews, DDSSpokane Valley, WA 992061417911124
  5. Michele Foglia, DMDSpokane Valley, WA 992061548356769
  6. Heather Frampton, DDSSpokane Valley, WA 992061962598102
  7. Liana Groza, DDSSpokane Valley, WA 992061992879837
  8. David Hagelin, DDSSpokane Valley, WA 992061205994084

Common questions

What is Douglas Scott Mackay, D.D.S.'s NPI number?

Douglas Scott Mackay, D.D.S.'s National Provider Identifier (NPI) is 1831373828, issued on Dec 26, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Douglas Scott Mackay, D.D.S. located?

The NPPES record lists a practice address at 2510 N Pines RD, Spokane Valley, WA, 99206. Phone: (509) 891-8700. Providers update this record themselves, so call before visiting.

How can I verify Douglas Scott Mackay, D.D.S.'s license?

NPPES lists Washington license number DE 00010046, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.

How much does Douglas Scott Mackay, D.D.S. prescribe under Medicare Part D?

In 2024, Douglas Scott Mackay, D.D.S. had 17 Medicare Part D claims for 17 beneficiaries; the average among general practice dentistry prescribers was 83. 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.