William Marshall Chisholm, M.D.
NPI 1932425923ActiveIndividual· Family Medicine, Geriatric Medicine· Aurora, CO
Family Medicine, Geriatric Medicine (M.D.) in Aurora, Colorado, trained at University of Colorado School of Medicine, Denver (class of 2013). In 2024 Medicare paid $146,487 for 559 patients, and Part D covered 3,220 of their prescriptions, 86% of them generic.
Overview
| NPI | 1932425923 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 15, 2010 |
| Last updated in NPPES | May 19, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine, Geriatric Medicine Primary | 207QG0300X | 53208 | CO |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (CO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 559 |
|---|---|
| Services billed | 2,057 across 21 procedure codes |
| Paid by Medicare | $146,487 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,220 · 4,170 30-day fills |
|---|---|
| Patients | 318 |
| Total drug cost | $194,181 |
| Generic share | 86% of claims |
Education and affiliations
| Medical school | University of Colorado School of Medicine, Denver |
|---|---|
| Graduation year | 2013 |
| Medicare specialty | Internal Medicine |
Medical group
- Physician Housecalls LLCLakewood, CO · 126 clinicians
Other facilities
- Optimal Home Care LovelandHome health agency · Loveland, CO
- Bloom HospiceHospice · Lakewood, CO
- Brighton Hospice Colorado, LLCHospice · Denver, CO
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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