Charles R. Zachem, D.O.
Specialist · Eugene, OR
Charles R. Zachem, D.O. is a specialist with a practice address in Eugene, Oregon, and NPI 1407851942, issued on Jun 20, 2005. Check the license (Oregon DO20422, as entered in NPPES) with the Oregon board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Charles R. Zachem
- Credential
- D.O.
- Primary taxonomy
- Specialist 174400000X
- License number
- DO20422 OR
Self-reported in NPPES; status is on the state search - Practice location
- 1200 Hilyard St, Eugene, OR 97401
- Phone
- (541) 485-6478
- Enumerated
- Jun 20, 2005
- Record last updated
- Jul 13, 2026
- Fax
- (541) 485-0452
- Medicare enrollment
- Enrolled (PECOS I20100729000617); accepts Medicare assignment
- Medical or professional school
- Ohio University, College Of Osteopathic Medicine, 1990
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest specialist records → All 1,085 in Oregon → Look up another NPI →
Also registered at 1200 Hilyard St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Brett Barnes, B.S, M.A.Mental Health Counselor1316477276
- Linda Beal Blandy, MSW LCSWSocial Worker1710014543
- Ahnya Booze-Love, NPNurse Practitioner1275799173
- Kierst Bradley, M.D.Pediatrics Physician1417272188
- Kathleen Brandt, R.D.Registered Dietitian1649202029
Verify Charles R. Zachem in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Oregon board licenses this profession
Search for license DO20422Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
71% more Medicare Part D claims than the average specialist in 2024
2,364 Medicare Part D claims for 368 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D.
Most prescribed
- Calcitriol411 claims
- Amlodipine Besylate147 claims
- Losartan Potassium147 claims
- Carvedilol129 claims
- Furosemide88 claims
- Spironolactone-Hctz81 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: $122.56
2 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 5,844 providers of this specialty with any payment received $4,760.79 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.
Bills Medicare through one group practice
- Eugene Springfield Nephrology Associates PCSpringfield, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Charles R. Zachem among 1,085 specialist records in Oregon
Charles R. Zachem, D.O. is one of 1,085 specialist records with a practice address in Oregon. 9% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 94% newer
- In a Medicare fileYes · 9% of these records are
- In the CMS Doctors and Clinicians fileYes · 6% of these records are
- Graduated1990 · median 1994 among the 65 with a school on file
- Record last updated2026 · 85% 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 Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
89 specialist records list a practice address in Eugene
They are 89 of the 8,239 NPPES records with a practice address in Eugene, and 1,085 specialist records in Oregon.
All 1,085 in Oregon → Every provider in Eugene → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- William Gutheim, M.D.Eugene, OR 974011346245883
- John Hunts, MD PHDEugene, OR 974011275530297
- Dainis Irbe, M.D.Eugene, OR 974011013979665
- Reed Kratka, M.D.Eugene, OR 974011396740841
- Victor Lin, M.D.Eugene, OR 974011487613261
- Martha Macritchie, M.D.Eugene, OR 974011225097439
- Kiumars Movassaghi, MEDICAL DOCTOREugene, OR 974011306841275
- Thomas Onstad, M.D.Eugene, OR 974011639155773
Common questions
What is Charles R. Zachem, D.O.'s NPI number?
Charles R. Zachem, D.O.'s National Provider Identifier (NPI) is 1407851942, issued on Jun 20, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Charles R. Zachem, D.O. located?
The NPPES record lists a practice address at 1200 Hilyard St, Eugene, OR, 97401. Phone: (541) 485-6478. Providers update this record themselves, so call before visiting.
How can I verify Charles R. Zachem, D.O.'s license?
NPPES lists Oregon license number DO20422, as entered by the provider. Search the Oregon board that licenses this profession; the NPPES record confirms identity only.
How much does Charles R. Zachem, D.O. prescribe under Medicare Part D?
In 2024, Charles R. Zachem, D.O. had 2,364 Medicare Part D claims for 368 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.