Ivan Benjamin Geller, MD
Geriatric Medicine (Internal Medicine) Physician · Wheat Ridge, CO
Ivan Benjamin Geller, MD is a geriatric medicine (internal medicine) physician with a practice address in Wheat Ridge, Colorado, and NPI 1003923194, issued on Aug 24, 2006. Check the license (Colorado 25075, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Ivan Benjamin Geller
- Credential
- MD
- Primary taxonomy
- Geriatric Medicine (Internal Medicine) Physician 207RG0300X
- License number
- 25075 CO
Self-reported in NPPES; status is on the state search - Practice location
- 3885 Upham St, Wheat Ridge, CO 80033
- Phone
- (303) 742-0108
- Enumerated
- Aug 24, 2006
- Record last updated
- Oct 16, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (303) 742-0690
- Medicaid ID
- 01250752 CO
- Entity
- Type 1 · individual
8 nearest geriatric medicine (internal medicine) physician records → All 103 in Colorado → Look up another NPI →
Also registered at 3885 Upham St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Jeffrey Desjardin, MDInfectious Disease Physician1821191305
- Charlotte Ellenbogen, D.O.Infectious Disease Physician1417914540
- Paul Fishman, MDGeriatric Medicine (Internal Medicine) Physician1912014002
- Norman Fujita, MDInfectious Disease Physician1033211990
Verify Ivan Benjamin Geller in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license 25075Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average geriatric medicine (internal medicine) physician in 2024
87 Medicare Part D claims for 22 beneficiaries, against an average of 4,246 among the 3,116 providers of this specialty who prescribed in Part D.
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.
Ivan Benjamin Geller among 103 geriatric medicine (internal medicine) physician records in Colorado
Ivan Benjamin Geller, MD is one of 103 geriatric medicine (internal medicine) physician records with a practice address in Colorado. 75% 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 8% of them.
- NPI issued2006 · 8% of these records are older, 45% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 50% of these records are
- Record last updated2012 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0300X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Geriatric Medicine (Internal Medicine) Physician providers in Colorado
There are 103 geriatric medicine (internal medicine) physician records in Colorado.
All 103 in Colorado → Every provider in Wheat Ridge → Geriatric Medicine (Internal Medicine) Physician nationwide →
The 8 geriatric medicine (internal medicine) physician records with the nearest ZIP codes
- Paul Fishman, MDWheat Ridge, CO 800331912014002
- Shirley Huang, M.D.Lafayette, CO 800261417175290
- James Martau, MDWestminster, CO 800231053335166
- Sinny Wang, MDWestminster, CO 800231700129384
- Eric Coleman, MDAurora, CO 800451780774463
- Kerry Hildreth, MDAurora, CO 800451982825543
- Evelyn Hutt, MDAurora, CO 800451619933454
- Cari Levy, MDAurora, CO 800451831289412
Common questions
What is Ivan Benjamin Geller, MD's NPI number?
Ivan Benjamin Geller, MD's National Provider Identifier (NPI) is 1003923194, issued on Aug 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ivan Benjamin Geller, MD located?
The NPPES record lists a practice address at 3885 Upham St, Wheat Ridge, CO, 80033. Phone: (303) 742-0108. Providers update this record themselves, so call before visiting.
How can I verify Ivan Benjamin Geller, MD's license?
NPPES lists Colorado license number 25075, as entered by the provider. Search the Colorado Medical Board at https://dpo.colorado.gov/Medical. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Ivan Benjamin Geller, MD prescribe under Medicare Part D?
In 2024, Ivan Benjamin Geller, MD had 87 Medicare Part D claims for 22 beneficiaries; the average among geriatric medicine (internal medicine) physician prescribers was 4,246. 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.