John Emmett Whalen, M.D.
Nephrology Physician · Dubuque, IA
John Emmett Whalen, M.D. is a nephrology physician with a practice address in Dubuque, Iowa, and NPI 1285694802, issued on Mar 27, 2006. Check the license (Iowa 19607, as entered in NPPES) on the Iowa Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- John Emmett Whalen
- Credential
- M.D.
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License numbers
- 19607 IA
42286 02 WI
Self-reported in NPPES; status is on the state search - Practice location
- 1500 Delhi St Ste 2100, Dubuque, IA 52001
- Phone
- (563) 557-9111
- Enumerated
- Mar 27, 2006
- Record last updated
- Mar 23, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (563) 589-4046
- Medicaid IDs
- 30409100 WI
1122291 IA - Medicare enrollment
- Enrolled (PECOS I20050415000286); accepts Medicare assignment
- Medical or professional school
- University Of Iowa, Rj & L Carver College Of Medicine, 1973
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 92 in Iowa → Look up another NPI →
Also registered at 1500 Delhi St Ste 2100
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Heidi Haas, RDRegistered Dietitian1609962927
- David Ringold, M.D.Nephrology Physician1912967118
Verify John Emmett Whalen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIowa Board of Medicine
Search for license 19607Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
5.5 times the Medicare Part D claims of the average nephrology physician in 2024
8,091 Medicare Part D claims for 769 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 65 claims were for opioids.
Most prescribed
- Calcitriol642 claims
- Furosemide579 claims
- Losartan Potassium311 claims
- Amlodipine Besylate302 claims
- Lisinopril281 claims
- Potassium Chloride267 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: $16.28
1 payment: food and beverage; the largest payer was Ardelyx, Inc. The 8,230 providers of this specialty with any payment received $3,091.37 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 2 group practices
- Dubuque Internal Medicine PCDubuque, IA
- Iowa Physicians Clinic Medical FoundationManchester, IA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Emmett Whalen among 92 nephrology physician records in Iowa
John Emmett Whalen, M.D. is one of 92 nephrology physician records with a practice address in Iowa. 84% 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 16% of them.
- NPI issued2006 · 16% of these records are older, 53% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 73% of these records are
- Graduated1973 · median 2001 among the 67 with a school on file
- Record last updated2021 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nephrology Physician providers in Iowa
There are 92 nephrology physician records in Iowa.
All 92 in Iowa → Every provider in Dubuque → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Andrew Bland, MDDubuque, IA 520011467582775
- David Ringold, M.D.Dubuque, IA 520011912967118
- Lisa Antes, MDIowa City, IA 522421174511026
- John Bertolatus, MDIowa City, IA 522421720075831
- Joel Gordon, MDIowa City, IA 522421174511034
- Rebecca Hegeman, MDIowa City, IA 522421386626604
- Chou-Long Huang, MD PHDIowa City, IA 522421396704425
- Lawrence Hunsicker, MDIowa City, IA 522421881676195
Common questions
What is John Emmett Whalen, M.D.'s NPI number?
John Emmett Whalen, M.D.'s National Provider Identifier (NPI) is 1285694802, issued on Mar 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Emmett Whalen, M.D. located?
The NPPES record lists a practice address at 1500 Delhi St Ste 2100, Dubuque, IA, 52001. Phone: (563) 557-9111. Providers update this record themselves, so call before visiting.
How can I verify John Emmett Whalen, M.D.'s license?
NPPES lists Iowa license number 19607, as entered by the provider. Search the Iowa Board of Medicine at https://dial.iowa.gov/about-dial/boards-and-commissions/medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John Emmett Whalen, M.D. prescribe under Medicare Part D?
In 2024, John Emmett Whalen, M.D. had 8,091 Medicare Part D claims for 769 beneficiaries; the average among nephrology physician prescribers was 1,465. 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.