William Chisholm, M.D.
NPI 1932425923 · Geriatric Medicine (Family Medicine) Physician · Aurora, CO
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Chisholm, M.D. is a Geriatric Medicine (Family Medicine) Physician provider in Aurora, CO (NPI 1932425923).
Provider details
- NPI number
- 1932425923
- Entity type
- Individual
- Primary specialty
- Geriatric Medicine (Family Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
16 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
2,024 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Residence Visit for Established Patient With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes99349 | 637 | $130 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 614 | $65 |
| Chronic Care Management Services for Two Or More Chronic Conditions, Additional 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99439 | 308 | $50 |
| Residence Visit for Established Patient With Low Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99348 | 305 | $78 |
| Residence Visit for Established Patient With High Level of Medical Decision Making, Per Day, If Using Time, at Least 60 Minutes99350 | 35 | $189 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 65 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 270 | 48 |
| Atorvastatin Calcium | 156 | 52 |
| Furosemide | 115 | 24 |
| Sertraline Hcl | 109 | 19 |
| Apixabanbrand: Eliquis | 99 | 23 |
| Quetiapine Fumarate | 99 | 14 |
| Amlodipine Besylate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-04-15
- Last updated
- 2015-05-19
Frequently asked questions
- What is William Chisholm's NPI number?
- William Chisholm's National Provider Identifier (NPI) is 1932425923, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Chisholm's specialty?
- William Chisholm is listed in the NPPES registry with a primary specialty of Geriatric Medicine (Family Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is William Chisholm located?
- William Chisholm's practice location on file with NPPES is 1400 S Potomac St, Aurora, CO 80012-4528.
- What is William Chisholm's phone number?
- The practice phone number listed in the NPPES registry for William Chisholm is (303) 306-4321.
- Does William Chisholm accept Medicare?
- William Chisholm is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Chisholm's NPI active?
- Yes — William Chisholm's NPI (1932425923) is active in the NPPES registry as of the last update on 2015-05-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.