NPPES file of Aug 9, 2026

Gregory Dean Bell, M.D.

Specialist · Olympia, WA

Gregory Dean Bell, M.D. is a specialist with a practice address in Olympia, Washington, and NPI 1538117205, issued on May 5, 2006. Check the license (Washington MD00033636, 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
1538117205
Name
Gregory Dean Bell
Credential
M.D.
Primary taxonomy
Specialist 174400000X
License number
MD00033636 WA
Self-reported in NPPES; status is on the state search
Practice location
525 Lilly RD NE, Olympia, WA 98506
Phone
(360) 413-8550
Enumerated
May 5, 2006
Record last updated
Nov 8, 2010 (not updated in 16 years: call before relying on the address or phone)
Fax
(360) 413-8827
Medicaid ID
8205221 WA
Medicare enrollment
Enrolled (PECOS I20100909000998); accepts Medicare assignment
Medical or professional school
University Of Washington School Of Medicine, 1993
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 525 Lilly RD NE

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

  1. Shannon Achille, DOStudent in an Organized Health Care Education/Training Program1871296145
  2. Amanda Achterman, DOFamily Medicine Physician1730593104
  3. Eun-Young Ahn, M.D.Family Medicine Physician1497141162
  4. Alexis Albert, PHARMDAmbulatory Care Pharmacist1881444529
  5. Valerie ArmstrongStudent in an Organized Health Care Education/Training Program1962149500
  6. Alexandra Babinchak, MDFamily Medicine Physician1073188264

Verify Gregory Dean Bell 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 MD00033636
    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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2.8 times the Medicare Part D claims of the average specialist in 2024

3,797 Medicare Part D claims for 431 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims.

  1. Gregory Bell3,797
  2. Specialty average1,380

Most prescribed

  1. Memantine Hcl643 claims
  2. Donepezil Hcl508 claims
  3. Carbidopa-Levodopa253 claims
  4. Gabapentin107 claims
  5. Rivastigmine105 claims
  6. Topiramate93 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. Multicare Health SystemTacoma, WA

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

Gregory Dean Bell among 2,609 specialist records in Washington

Gregory Dean Bell, M.D. 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 fileYes · 2% of these records are
  • Graduated1993 · median 1990 among the 65 with a school on file
  • Record last updated2010 · 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. Rex Bolin, MDOlympia, WA 985061831152750
  2. John Brottem, MDOlympia, WA 985061972566818
  3. Jeffrey Christenson, MDOlympia, WA 985061932162872
  4. Karen Fukui, M.D.Olympia, WA 985061932176427
  5. Virgil Knackstedt, M.D.Olympia, WA 985061083605307
  6. Jon Kooiker, M.D.Olympia, WA 985061568420180
  7. Cole Mason, M.D.Olympia, WA 985061982671475
  8. James McDowell, M.D.Olympia, WA 985061790733657

Common questions

What is Gregory Dean Bell, M.D.'s NPI number?

Gregory Dean Bell, M.D.'s National Provider Identifier (NPI) is 1538117205, issued on May 5, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Gregory Dean Bell, M.D. located?

The NPPES record lists a practice address at 525 Lilly RD NE, Olympia, WA, 98506. Phone: (360) 413-8550. Providers update this record themselves, so call before visiting.

How can I verify Gregory Dean Bell, M.D.'s license?

NPPES lists Washington license number MD00033636, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.

How much does Gregory Dean Bell, M.D. prescribe under Medicare Part D?

In 2024, Gregory Dean Bell, M.D. had 3,797 Medicare Part D claims for 431 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.