Roberto Joaquin Fernandez, D.O. MPH
Hematology & Oncology Physician · Duluth, MN
Roberto Joaquin Fernandez, D.O. MPH is a hematology & oncology physician with a practice address in Duluth, Minnesota, and NPI 1922446459, issued on Jun 6, 2013. Check the license (Minnesota 66358, as entered in NPPES) on the Minnesota Board of Medical Practice; the Medicare figures below come from public CMS files.
- Name
- Roberto Joaquin Fernandez
- Credential
- D.O. MPH
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- 66358 MN
Self-reported in NPPES; status is on the state search - Practice location
- 1001 E Superior St Ste L101, Duluth, MN 55802
- Phone
- (218) 249-3081
- Enumerated
- Jun 6, 2013
- Record last updated
- Dec 4, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (218) 249-7875
- Medicare enrollment
- Enrolled (PECOS I20191021000876); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 274 in Minnesota → Look up another NPI →
Verify Roberto Joaquin Fernandez in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMinnesota Board of Medical Practice
Search for license 66358Check 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% more Medicare Part D claims than the average hematology & oncology physician in 2024
1,484 Medicare Part D claims for 273 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 50 claims were for opioids.
Most prescribed
- Prednisone124 claims
- Tamoxifen Citrate124 claims
- Anastrozole113 claims
- Gabapentin81 claims
- Acyclovir75 claims
- Prochlorperazine Maleate75 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
- St. Luke's Hospital OF DuluthTwo Harbors, MN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Roberto Joaquin Fernandez among 274 hematology & oncology physician records in Minnesota
Roberto Joaquin Fernandez, D.O. MPH is one of 274 hematology & oncology physician records with a practice address in Minnesota. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 60% of them.
- NPI issued2013 · 60% of these records are older, 37% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 76% of these records are
- Graduated2013 · median 2009 among the 208 with a school on file
- Record last updated2020 · 47% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Minnesota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in Minnesota
There are 274 hematology & oncology physician records in Minnesota.
All 274 in Minnesota → Every provider in Duluth → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Homam Alkaied, MDDuluth, MN 558021952391716
- Julia Baker, D.O.Duluth, MN 558021518080886
- Anna Perelshteyn, M.D.Duluth, MN 558021659699536
- Tanya Repka, MDDuluth, MN 558021679523096
- Anne Silva-Benedict, MDDuluth, MN 558021083746796
- Matthew Braithwaite, MDDuluth, MN 558051104280817
- Peter Kebbekus, MDDuluth, MN 558051245406750
- Krishna Kolandaivel, M.D.Duluth, MN 558051255675492
Common questions
What is Roberto Joaquin Fernandez, D.O. MPH's NPI number?
Roberto Joaquin Fernandez, D.O. MPH's National Provider Identifier (NPI) is 1922446459, issued on Jun 6, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Roberto Joaquin Fernandez, D.O. MPH located?
The NPPES record lists a practice address at 1001 E Superior St Ste L101, Duluth, MN, 55802. Phone: (218) 249-3081. Providers update this record themselves, so call before visiting.
How can I verify Roberto Joaquin Fernandez, D.O. MPH's license?
NPPES lists Minnesota license number 66358, as entered by the provider. Search the Minnesota Board of Medical Practice at https://mn.gov/boards/medical-practice/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Roberto Joaquin Fernandez, D.O. MPH prescribe under Medicare Part D?
In 2024, Roberto Joaquin Fernandez, D.O. MPH had 1,484 Medicare Part D claims for 273 beneficiaries; the average among hematology & oncology physician prescribers was 877. 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.