James Caleb Geyman, MD
Internal Medicine Physician · Aurora, CO
James Caleb Geyman, MD is an internal medicine physician with a practice address in Aurora, Colorado, and NPI 1750425559, issued on Feb 16, 2007. Check the license (Colorado 29120, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- James Caleb Geyman
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 29120 CO
Self-reported in NPPES; status is on the state search - Practice location
- 791 Chambers RD, Aurora, CO 80011
- Phone
- (303) 360-6276
- Enumerated
- Feb 16, 2007
- Record last updated
- Jul 21, 2022
- Fax
- (303) 789-7239
- Medicaid ID
- 01291202 CO
- Medicare enrollment
- Enrolled (PECOS I20250911002628); accepts Medicare assignment
- Medical or professional school
- University Of Washington School Of Medicine, 1987
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,046 in Colorado → Look up another NPI →
Also registered at 791 Chambers RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Chelsea AghajiPsychiatric/Mental Health Registered Nurse1962194548
- Andrew AlakaCase Manager/Care Coordinator1215819396
- Shanele AlexanderCase Manager/Care Coordinator1487452140
- Delaney AllenCase Manager/Care Coordinator1235979980
- Rebecca AltshulerStudent in an Organized Health Care Education/Training Program1225863236
- Jose AlvarezCase Manager/Care Coordinator1366005654
Verify James Caleb Geyman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license 29120Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- All Nations Health Center, Inc.Missoula, MT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
James Caleb Geyman among 2,046 internal medicine physician records in Colorado
James Caleb Geyman, MD is one of 2,046 internal medicine physician records with a practice address in Colorado. 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 2007, is newer than 40% of them.
- NPI issued2007 · 40% of these records are older, 39% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated1987 · median 2006 among the 1,090 with a school on file
- Record last updated2022 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
244 internal medicine physician records list a practice address in Aurora
They are 244 of the 17,400 NPPES records with a practice address in Aurora, and 2,046 internal medicine physician records in Colorado.
All 2,046 in Colorado → Every provider in Aurora → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Jason Cadwallader, MDAurora, CO 800111942467469
- Gerard Guillory, M.D.Aurora, CO 800111235166315
- Christine Jones, MDAurora, CO 800111821102492
- Kimberly RhoadesAurora, CO 800111639213416
- Christiana Shoushtari, MD, MPHAurora, CO 800111265938906
- Jennifer Ziouras, MDAurora, CO 800111619976099
- Stephen Alix, M.D.Aurora, CO 800121063473361
- Douglas Altschuler, DOAurora, CO 800121770542177
Common questions
What is James Caleb Geyman, MD's NPI number?
James Caleb Geyman, MD's National Provider Identifier (NPI) is 1750425559, issued on Feb 16, 2007. An NPI identifies a provider in billing; it is not a license.
Where is James Caleb Geyman, MD located?
The NPPES record lists a practice address at 791 Chambers RD, Aurora, CO, 80011. Phone: (303) 360-6276. Providers update this record themselves, so call before visiting.
How can I verify James Caleb Geyman, MD's license?
NPPES lists Colorado license number 29120, 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.
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.