John D. Geanon, MD
Ophthalmology Physician · Madison, WI
John D. Geanon, MD is an ophthalmology physician with a practice address in Madison, Wisconsin, and NPI 1891736971, issued on Jun 9, 2006. Check the license (Wisconsin 34330-020, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- John D. Geanon
- Credential
- MD
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- 34330-020 WI
Self-reported in NPPES; status is on the state search - Practice location
- 1025 Regent St, Madison, WI 53715
- Phone
- (608) 282-2000
- Enumerated
- Jun 9, 2006
- Record last updated
- Nov 17, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (608) 282-2172
- Medicaid ID
- 1891736971 WI
- Medicare enrollment
- Enrolled (PECOS I20051005000066); accepts Medicare assignment
- Medical or professional school
- University Of Chicago, Pritzker School Of Medicine, 1989
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 441 in Wisconsin → Look up another NPI →
Also registered at 1025 Regent St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Julia Agapov, DOOphthalmology Physician1861428153
- James Bell, MDOphthalmology Physician1376860668
- Rachel Bushey, ODOptometrist1447949482
- Sheila Carlson, MDAnesthesiology Physician1407805138
- Christopher Croasdale, MDOphthalmology Physician1770520843
- Neil Farbman, MDOphthalmology Physician1861751364
Verify John D. Geanon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 34330-020Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
5.2 times the Medicare Part D claims of the average ophthalmology physician in 2024
7,888 Medicare Part D claims for 1,210 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 35% of claims.
Most prescribed
- Latanoprost2,240 claims
- Dorzolamide-Timolol1,127 claims
- Timolol Maleate773 claims
- Travoprost640 claims
- Brimonidine Tartrate523 claims
- Dorzolamide Hcl371 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
- Dean Health Systems IncMadison, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John D. Geanon among 441 ophthalmology physician records in Wisconsin
John D. Geanon, MD is one of 441 ophthalmology physician records with a practice address in Wisconsin. 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 2006, is newer than 15% of them.
- NPI issued2006 · 15% of these records are older, 38% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated1989 · median 2005 among the 259 with a school on file
- Record last updated2020 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ophthalmology Physician providers in Wisconsin
There are 441 ophthalmology physician records in Wisconsin.
All 441 in Wisconsin → Every provider in Madison → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Julia Agapov, DOMadison, WI 537151861428153
- Christopher Croasdale, MDMadison, WI 537151770520843
- Judith Fitzgerald, MDMadison, WI 537151528000536
- Shahed Ghoghawala, MDMadison, WI 537151871768051
- Amol Kulkarni, MDMadison, WI 537151093754723
- Neil Lucchese, MDMadison, WI 537151639116544
- Peter McCanna, MDMadison, WI 537151356383210
- Brett Pariseau, M.D.Madison, WI 537151912956764
Common questions
What is John D. Geanon, MD's NPI number?
John D. Geanon, MD's National Provider Identifier (NPI) is 1891736971, issued on Jun 9, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John D. Geanon, MD located?
The NPPES record lists a practice address at 1025 Regent St, Madison, WI, 53715. Phone: (608) 282-2000. Providers update this record themselves, so call before visiting.
How can I verify John D. Geanon, MD's license?
NPPES lists Wisconsin license number 34330-020, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John D. Geanon, MD prescribe under Medicare Part D?
In 2024, John D. Geanon, MD had 7,888 Medicare Part D claims for 1,210 beneficiaries; the average among ophthalmology physician prescribers was 1,518. 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.