NPPES file of Aug 9, 2026

Allen Scott Nielsen, MD

Neurology Physician · Seattle, WA

Allen Scott Nielsen, MD is a neurology physician with a practice address in Seattle, Washington, and NPI 1780721068, issued on Jan 30, 2007. Check the license (Washington MD60211780, 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
1780721068
Name
Allen Scott Nielsen
Credential
MD
Primary taxonomy
Neurology Physician 2084N0400X
License numbers
MD60211780 WA
240379 MA
Self-reported in NPPES; status is on the state search
Practice location
1100 9TH Ave, Seattle, WA 98101
Phone
(206) 341-0420
Enumerated
Jan 30, 2007
Record last updated
Nov 29, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicaid ID
1780721068 WA
Medicare enrollment
Enrolled (PECOS I20151016000429); accepts Medicare assignment
Medical or professional school
University Of Colorado School Of Medicine, Denver, 2005
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 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 Allen Scott Nielsen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license MD60211780
    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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14% fewer Medicare Part D claims than the average neurology physician in 2024

1,183 Medicare Part D claims for 225 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D.

  1. Allen Nielsen1,183
  2. Specialty average1,370

Most prescribed

  1. Gabapentin233 claims
  2. Baclofen183 claims
  3. Dalfampridine Er138 claims
  4. Levetiracetam44 claims
  5. Oxcarbazepine37 claims
  6. Oxybutynin Chloride Er35 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 one group practice

  1. Southern California Permanente Medical GroupRiverside, CA

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

Allen Scott Nielsen among 489 neurology physician records in Washington

Allen Scott Nielsen, MD is one of 489 neurology physician records with a practice address in Washington. 82% 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 40% of them.

  • NPI issued2007 · 40% of these records are older, 49% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 72% of these records are
  • Graduated2005 · median 2007 among the 351 with a school on file
  • Record last updated2021 · 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 2084N0400X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Neurology Physician providers in Washington

There are 489 neurology physician records in Washington.

The 8 neurology physician records with the nearest ZIP codes

  1. Anik Amin, M.D.Seattle, WA 981011497040703
  2. Emma Burbank, M.D.Seattle, WA 981011457562621
  3. Dhaval Desai, M.D.Seattle, WA 981011760800932
  4. John Greenert, M.D., M.P.H.Seattle, WA 981011043625551
  5. Mariko Kita, MDSeattle, WA 981011326061748
  6. Lucas McCarthy, MDSeattle, WA 981011053624502
  7. Michael Mercurio, MDSeattle, WA 981011316202005
  8. John Roberts, MDSeattle, WA 981011396858551

Common questions

What is Allen Scott Nielsen, MD's NPI number?

Allen Scott Nielsen, MD's National Provider Identifier (NPI) is 1780721068, issued on Jan 30, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Allen Scott Nielsen, MD located?

The NPPES record lists a practice address at 1100 9TH Ave, Seattle, WA, 98101. Phone: (206) 341-0420. Providers update this record themselves, so call before visiting.

How can I verify Allen Scott Nielsen, MD's license?

NPPES lists Washington license number MD60211780, 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 Allen Scott Nielsen, MD prescribe under Medicare Part D?

In 2024, Allen Scott Nielsen, MD had 1,183 Medicare Part D claims for 225 beneficiaries; the average among neurology physician prescribers was 1,370. 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.