Cassandra Olson Williams, D.O.
NPI 1235661851 · Sports Medicine (Family Medicine) Physician · Usaf Academy, CO
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Cassandra Olson Williams, D.O. is a Sports Medicine (Family Medicine) Physician provider in Usaf Academy, CO (NPI 1235661851).
Provider details
- NPI number
- 1235661851
- Entity type
- Individual
- Primary specialty
- Sports Medicine (Family Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- Yes
- License
- T0588 (TX)
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 tenure25% of score
9 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
73 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 45 | $127 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 16 | $177 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 12 | $132 |
Typical Medicare-allowed amounts for these services range $127–$177 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 14 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 54 | 22 |
| Lisinopril | 49 | 23 |
| Levothyroxine Sodium | 44 | 19 |
| Rosuvastatin Calcium | 42 | 18 |
| Metformin Hclbrand: Metformin Hcl Er | 28 | 12 |
| Amlodipine Besylate | 22 | 12 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$24 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2017-04-02
- Last updated
- 2026-04-22
- Certified
- 2026-04-22
Frequently asked questions
- What is Cassandra Olson Williams's NPI number?
- Cassandra Olson Williams's National Provider Identifier (NPI) is 1235661851, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cassandra Olson Williams's specialty?
- Cassandra Olson Williams is listed in the NPPES registry with a primary specialty of Sports Medicine (Family Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Cassandra Olson Williams located?
- Cassandra Olson Williams's practice location on file with NPPES is 4102 Pinion Dr, Usaf Academy, CO 80840-2502.
- What is Cassandra Olson Williams's phone number?
- The practice phone number listed in the NPPES registry for Cassandra Olson Williams is (719) 333-5020.
- Does Cassandra Olson Williams accept Medicare?
- Cassandra Olson Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Cassandra Olson Williams's NPI active?
- Yes — Cassandra Olson Williams's NPI (1235661851) is active in the NPPES registry as of the last update on 2026-04-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.