NPPES file of Aug 9, 2026

Nelson McKay, MD

Family Medicine Physician · Seattle, WA

Nelson McKay, MD is a family medicine physician with a practice address in Seattle, Washington, and NPI 1558855452, issued on Jun 15, 2018. Check the license (Washington MD61194592, 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
1558855452
Name
Nelson McKay
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
MD61194592 WA
Self-reported in NPPES; status is on the state search
Practice location
4540 Union Bay PL NE, Seattle, WA 98105
Phone
(206) 320-3400
Enumerated
Jun 15, 2018
Record last updated
Feb 27, 2026
Fax
(206) 320-5773
Medicaid ID
2191570 WA
Medicare enrollment
Enrolled (PECOS I20210929003522); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 4540 Union Bay PL NE

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

  1. Tracey Alta, LICSWClinical Social Worker1366804049
  2. Hsiang-Hwa Chen, DOFamily Medicine Physician1043539968
  3. Catherine Damey, MDFamily Medicine Physician1891704045
  4. Brianna Grinnell, DOFamily Medicine Physician1235620378
  5. Jillian Moshay, MDFamily Medicine Physician1982917316
  6. Joan Olson, MDInternal Medicine Physician1629070123

Verify Nelson McKay in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license MD61194592
    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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46% fewer Medicare Part D claims than the average family medicine physician in 2024

1,923 Medicare Part D claims for 230 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 35 claims were for opioids.

  1. Nelson McKay1,923
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium102 claims
  2. Lisinopril75 claims
  3. Losartan Potassium67 claims
  4. Amlodipine Besylate61 claims
  5. Omeprazole61 claims
  6. Trazodone Hcl53 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.

Bills Medicare through 2 group practices

  1. Community Health Association OF SpokaneSpokane, WA
  2. Swedish Health ServicesSeattle, WA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Nelson McKay among 5,534 family medicine physician records in Washington

Nelson McKay, MD is one of 5,534 family medicine physician records with a practice address in Washington. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 82% of them.

  • NPI issued2018 · 82% of these records are older, 15% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated2018 · median 2009 among the 3,294 with a school on file
  • Record last updated2026 · 57% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

871 family medicine physician records list a practice address in Seattle

They are 871 of the 41,956 NPPES records with a practice address in Seattle, and 5,534 family medicine physician records in Washington.

The 8 family medicine physician records with the nearest ZIP codes

  1. Mindy Blaski, MDSeattle, WA 981051659466969
  2. Thomas Cherry, MDSeattle, WA 981051891768610
  3. Karri Chinn, MDSeattle, WA 981051386626281
  4. Catherine Damey, MDSeattle, WA 981051891704045
  5. Jaco Kruger, M.D.Seattle, WA 981051699705392
  6. Mark Lacambra, M.D.Seattle, WA 981051508848953
  7. Pamela McDonald, M.D.Seattle, WA 981051508894841
  8. Scott McIntyre, M.D.Seattle, WA 981051285662494

Common questions

What is Nelson McKay, MD's NPI number?

Nelson McKay, MD's National Provider Identifier (NPI) is 1558855452, issued on Jun 15, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Nelson McKay, MD located?

The NPPES record lists a practice address at 4540 Union Bay PL NE, Seattle, WA, 98105. Phone: (206) 320-3400. Providers update this record themselves, so call before visiting.

How can I verify Nelson McKay, MD's license?

NPPES lists Washington license number MD61194592, 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 Nelson McKay, MD prescribe under Medicare Part D?

In 2024, Nelson McKay, MD had 1,923 Medicare Part D claims for 230 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.