Guillermo Rafael Ethier, DNP
Nurse Practitioner · Royal Oak, MI
Guillermo Rafael Ethier, DNP is a nurse practitioner with a practice address in Royal Oak, Michigan, and NPI 1154012433, issued on May 17, 2023. Check the license (Michigan 4704371357, as entered in NPPES) with the Michigan board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Guillermo Rafael Ethier
- Credential
- DNP
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- 4704371357 MI
Self-reported in NPPES; status is on the state search - Practice location
- 3230 Garden Ave, Royal Oak, MI 48073
- Phone
- (810) 240-1102
- Enumerated
- May 17, 2023
- Record last updated
- May 17, 2023
- Medicare enrollment
- Enrolled (PECOS I20240325000372); accepts Medicare assignment
- Medical or professional school
- University Of Michigan Medical School, 2023
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 3,574 in Michigan → Look up another NPI →
Verify Guillermo Rafael Ethier in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Michigan board licenses this profession
Search for license 4704371357Check 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% fewer Medicare Part D claims than the average nurse practitioner in 2024
320 Medicare Part D claims for 58 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D.
Most prescribed
- Biktarvy35 claims
- Lisinopril18 claims
- Sulfamethoxazole-Trimethoprim14 claims
- Trazodone Hcl14 claims
- Albuterol Sulfate Hfa12 claims
- Amlodipine Besylate12 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: $1,251.22
75 payments; by number, the most common kind was food and beverage; the largest payer was ViiV Healthcare Company. The 38,884 providers of this specialty with any payment received $791.64 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
- Downriver Mental Health Clinic PCSouthfield, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Guillermo Rafael Ethier among 3,574 nurse practitioner records in Michigan
Guillermo Rafael Ethier, DNP is one of 3,574 nurse practitioner records with a practice address in Michigan. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 87% of them.
- NPI issued2023 · 87% of these records are older, 9% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 56% of these records are
- Graduated2023 · median 2017 among the 1,983 with a school on file
- Record last updated2023 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
155 nurse practitioner records list a practice address in Royal Oak
They are 155 of the 3,887 NPPES records with a practice address in Royal Oak, and 3,574 nurse practitioner records in Michigan.
All 3,574 in Michigan → Every provider in Royal Oak → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Carol Appel, N.P.Royal Oak, MI 480731053370551
- Susan Bartos, CNNPRoyal Oak, MI 480731427148832
- Rachel Blind, NPRoyal Oak, MI 480731407867799
- Gail Briolat, ACNPRoyal Oak, MI 480731467472274
- Patricia Connor, NPRoyal Oak, MI 480731699780304
- Cheryl Grain, NPRoyal Oak, MI 480731437155538
- Roseanne Kaitner, N.P.Royal Oak, MI 480731902975501
- Carrie Lint, RN ACNPRoyal Oak, MI 480731972564458
Common questions
What is Guillermo Rafael Ethier, DNP's NPI number?
Guillermo Rafael Ethier, DNP's National Provider Identifier (NPI) is 1154012433, issued on May 17, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Guillermo Rafael Ethier, DNP located?
The NPPES record lists a practice address at 3230 Garden Ave, Royal Oak, MI, 48073. Phone: (810) 240-1102. Providers update this record themselves, so call before visiting.
How can I verify Guillermo Rafael Ethier, DNP's license?
NPPES lists Michigan license number 4704371357, as entered by the provider. Search the Michigan board that licenses this profession; the NPPES record confirms identity only.
How much does Guillermo Rafael Ethier, DNP prescribe under Medicare Part D?
In 2024, Guillermo Rafael Ethier, DNP had 320 Medicare Part D claims for 58 beneficiaries; the average among nurse practitioner prescribers was 1,109. 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.