James Thomas Cassleman, M.D.
Family Medicine Physician · Aurora, CO
James Thomas Cassleman, M.D. is a family medicine physician with a practice address in Aurora, Colorado, and NPI 1659691863, issued on Jun 10, 2010. Check the license on the Colorado Medical Board; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- James Thomas Cassleman
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 0101250317 VA
Self-reported in NPPES; status is on the state search - Practice location
- 275 S Aspen St, Aurora, CO 80011
- Phone
- (720) 847-9355
- Enumerated
- Jun 10, 2010
- Record last updated
- Mar 25, 2026
- Entity
- Type 1 · individual
Also registered at 275 S Aspen St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Aleashea Bess, RNRegistered Nurse1902771140
- Katherine Maples-Andrade, APNFamily Nurse Practitioner1619565629
- Madison Marvel, MDPediatrics Physician1700383296
- Pamela Wamhoff, LCSWClinical Social Worker1861458994
Verify James Thomas Cassleman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical BoardCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
220 family medicine physician records list a practice address in Aurora
They are 220 of the 17,400 NPPES records with a practice address in Aurora, and 3,563 family medicine physician records in Colorado. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 220 in Aurora → All 3,563 in Colorado → Every provider in Aurora →
Other family medicine physician records in Colorado
- Eric Abbott, D.O.Colorado Springs, CO1255522876
- John Abbott, D.O.Lamar, CO1255477790
- Rasha Abdelsalam, MDDenver, CO1891058467
- Baiju Abdulla, M.B.B.S.Colorado Springs, CO1316119076
- Nathalie Abisror, MDCastle Pines, CO1336634922
- Ashley Abrahamson, DOPueblo, CO1497324065
- Lara Abrahamson, MDFort Collins, CO1538145289
- Pamela Abrams, MDBroomfield, CO1073514188
- Hemamalini Achuthan, MDLakewood, CO1205982881
- Chris Adams, D.O.Limon, CO1144285248
Common questions
What is James Thomas Cassleman, M.D.'s NPI number?
James Thomas Cassleman, M.D.'s National Provider Identifier (NPI) is 1659691863, issued on Jun 10, 2010. An NPI identifies a provider in billing; it is not a license.
Where is James Thomas Cassleman, M.D. located?
The NPPES record lists a practice address at 275 S Aspen St, Aurora, CO, 80011. Phone: (720) 847-9355. Providers update this record themselves, so call before visiting.
How can I verify James Thomas Cassleman, M.D.'s license?
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. 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.