Joel Charles Geerling, M.D., PH.D.
Neurology Physician · Iowa City, IA
Joel Charles Geerling, M.D., PH.D. is a neurology physician with a practice address in Iowa City, Iowa, and NPI 1578706628, issued on Apr 18, 2009. Check the license on the Iowa Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Joel Charles Geerling
- Credential
- M.D., PH.D.
- Primary taxonomy
- Neurology Physician 2084N0400X
- License number
- 257202 MA
Self-reported in NPPES; status is on the state search - Practice location
- 200 Hawkins Dr, Iowa City, IA 52242
- Phone
- (319) 356-1616
- Enumerated
- Apr 18, 2009
- Record last updated
- Oct 8, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (319) 356-4505
- Medicare enrollment
- Enrolled (PECOS I20161102000399); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 167 in Iowa → Look up another NPI →
Also registered at 200 Hawkins Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Joel Charles Geerling in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIowa Board of MedicineCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
72% fewer Medicare Part D claims than the average neurology physician in 2024
377 Medicare Part D claims for 62 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D.
Most prescribed
- Donepezil Hcl168 claims
- Lamotrigine57 claims
- Levetiracetam33 claims
- Memantine Hcl25 claims
- Carbidopa-Levodopa24 claims
- Rivastigmine15 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
- State University OF IowaIowa City, IA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Joel Charles Geerling among 167 neurology physician records in Iowa
Joel Charles Geerling, M.D., PH.D. is one of 167 neurology physician records with a practice address in Iowa. 70% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 54% of them.
- NPI issued2009 · 54% of these records are older, 45% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileYes · 51% of these records are
- Graduated2008 · median 2001 among the 86 with a school on file
- Record last updated2016 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
85 neurology physician records list a practice address in Iowa City
They are 85 of the 7,163 NPPES records with a practice address in Iowa City, and 167 neurology physician records in Iowa.
All 167 in Iowa → Every provider in Iowa City → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- Harold Adams, MDIowa City, IA 522421396737912
- Edward Aul, MDIowa City, IA 522421538151105
- Tracey Cho, MDIowa City, IA 522421992787915
- Patricia Davis, MDIowa City, IA 522421366435497
- Deema Fattal, MDIowa City, IA 522421982696803
- Lynne Geweke, MDIowa City, IA 522421174508519
- George Richerson, MDIowa City, IA 522421164404802
- Robert Rodnitzky, MDIowa City, IA 522421801889936
Common questions
What is Joel Charles Geerling, M.D., PH.D.'s NPI number?
Joel Charles Geerling, M.D., PH.D.'s National Provider Identifier (NPI) is 1578706628, issued on Apr 18, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Joel Charles Geerling, M.D., PH.D. located?
The NPPES record lists a practice address at 200 Hawkins Dr, Iowa City, IA, 52242. Phone: (319) 356-1616. Providers update this record themselves, so call before visiting.
How can I verify Joel Charles Geerling, M.D., PH.D.'s license?
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 Joel Charles Geerling, M.D., PH.D. prescribe under Medicare Part D?
In 2024, Joel Charles Geerling, M.D., PH.D. had 377 Medicare Part D claims for 62 beneficiaries; the average among neurology physician prescribers was 1,370. 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.