Robert L. Knudson, DDS
Dentist · Bellingham, WA
Robert L. Knudson, DDS is a dentist with a practice address in Bellingham, Washington, and NPI 1578624789, issued on Dec 12, 2006. Check the license (Washington 5892, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Robert L. Knudson
- Credential
- DDS
- Primary taxonomy
- Dentist 122300000X
- License number
- 5892 WA
Self-reported in NPPES; status is on the state search - Practice location
- 1415 Commercial St, Bellingham, WA 98225
- Phone
- (360) 671-4480
- Enumerated
- Dec 12, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (360) 647-9680
- Entity
- Type 1 · individual
8 nearest dentist records → All 2,767 in Washington → Look up another NPI →
Verify Robert L. Knudson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this profession
Search for license 5892Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
69% fewer Medicare Part D claims than the average dentist in 2024
27 Medicare Part D claims for 11 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 13 claims were for opioids.
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.
Robert L. Knudson among 2,767 dentist records in Washington
Robert L. Knudson, DDS is one of 2,767 dentist records with a practice address in Washington. 60% 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, 78% newer
- In a Medicare fileYes · 60% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2007 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 122300000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
59 dentist records list a practice address in Bellingham
They are 59 of the 5,172 NPPES records with a practice address in Bellingham, and 2,767 dentist records in Washington.
All 2,767 in Washington → Every provider in Bellingham → Dentist nationwide →
The 8 dentist records with the nearest ZIP codes
- Emel Agan, DDSBellingham, WA 982251114060613
- Olivia Collier, DMDBellingham, WA 982251619058450
- Darcy Galbraith, DDSBellingham, WA 982251962513382
- John Gardiner, DDSBellingham, WA 982251922118926
- Jesse Guzman, DDSBellingham, WA 982251972526002
- Aaron Lemperes, DDSBellingham, WA 982251215010657
- Marvin Marson, D.D.SBellingham, WA 982251821120676
- Gordon Nolan, DDSBellingham, WA 982251518000108
Common questions
What is Robert L. Knudson, DDS's NPI number?
Robert L. Knudson, DDS's National Provider Identifier (NPI) is 1578624789, issued on Dec 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Robert L. Knudson, DDS located?
The NPPES record lists a practice address at 1415 Commercial St, Bellingham, WA, 98225. Phone: (360) 671-4480. Providers update this record themselves, so call before visiting.
How can I verify Robert L. Knudson, DDS's license?
NPPES lists Washington license number 5892, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.
How much does Robert L. Knudson, DDS prescribe under Medicare Part D?
In 2024, Robert L. Knudson, DDS had 27 Medicare Part D claims for 11 beneficiaries; the average among dentist prescribers was 86. 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.