John R. Knudsen, M.D.
Emergency Medical Services (Emergency Medicine) Physician · Ferndale, WA
John R. Knudsen, M.D. is an emergency medical services (emergency medicine) physician with a practice address in Ferndale, Washington, and NPI 1508952060, issued on Oct 4, 2006. Check the license (Washington MD00013215, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- John R. Knudsen
- Credential
- M.D.
- Primary taxonomy
- Emergency Medical Services (Emergency Medicine) Physician 207PE0004X
- License number
- MD00013215 WA
Self-reported in NPPES; status is on the state search - Practice location
- 6046 Portal Way, Ferndale, WA 98248
- Phone
- (360) 734-2330
- Enumerated
- Oct 4, 2006
- Record last updated
- Mar 7, 2023
- Fax
- (360) 733-3886
- Medicaid ID
- 1466705 WA
- Medicare enrollment
- Enrolled (PECOS I20070102000491); accepts Medicare assignment
- Medical or professional school
- University Of Washington School Of Medicine, 1970
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest emergency medical services (emergency medicine) physician records → All 91 in Washington → Look up another NPI →
Verify John R. Knudsen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD00013215Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
12.9 times the Medicare Part D claims of the average emergency medical services (emergency medicine) physician in 2024
3,753 Medicare Part D claims for 258 beneficiaries, against an average of 292 among the 1,653 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 67 claims were for opioids.
Most prescribed
- Atorvastatin Calcium320 claims
- Metoprolol Succinate190 claims
- Losartan Potassium171 claims
- Amlodipine Besylate167 claims
- Lisinopril161 claims
- Levothyroxine Sodium114 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.
Industry payments in 2024: $206.98
12 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. The 489 providers of this specialty with any payment received $337.59 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
John R. Knudsen among 91 emergency medical services (emergency medicine) physician records in Washington
John R. Knudsen, M.D. is one of 91 emergency medical services (emergency medicine) physician records with a practice address in Washington. 64% 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 0% of them.
- NPI issued2006 · 0% of these records are older, 35% newer
- In a Medicare fileYes · 64% of these records are
- In the CMS Doctors and Clinicians fileYes · 46% of these records are
- Graduated1970 · median 1999 among the 42 with a school on file
- Record last updated2023 · 74% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207PE0004X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Emergency Medical Services (Emergency Medicine) Physician providers in Washington
There are 91 emergency medical services (emergency medicine) physician records in Washington.
All 91 in Washington → Every provider in Ferndale → Emergency Medical Services (Emergency Medicine) Physician nationwide →
The 8 emergency medical services (emergency medicine) physician records with the nearest ZIP codes
- George Lawrence, M.D.Bellingham, WA 982261760576409
- Scott Tarleton, M.D.Bellingham, WA 982261609960244
- John Allderdice, MDMonroe, WA 982721023063369
- Robert Russell, MDArlington, WA 982231497705800
- Christopher Roberts, M.D.Mount Vernon, WA 982741801805684
- Jackson Bugg, BLSSedro Woolley, WA 982841538039375
- Amy Anderson, ARNPEverett, WA 982011982458030
- Eric Cooper, MDEverett, WA 982011053409912
Common questions
What is John R. Knudsen, M.D.'s NPI number?
John R. Knudsen, M.D.'s National Provider Identifier (NPI) is 1508952060, issued on Oct 4, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John R. Knudsen, M.D. located?
The NPPES record lists a practice address at 6046 Portal Way, Ferndale, WA, 98248. Phone: (360) 734-2330. Providers update this record themselves, so call before visiting.
How can I verify John R. Knudsen, M.D.'s license?
NPPES lists Washington license number MD00013215, 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 John R. Knudsen, M.D. prescribe under Medicare Part D?
In 2024, John R. Knudsen, M.D. had 3,753 Medicare Part D claims for 258 beneficiaries; the average among emergency medical services (emergency medicine) physician prescribers was 292. 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.