Cassandra Whitmore, MD
NPI 1447322243 · Internal Medicine Physician · Fairfield, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Cassandra Whitmore, MD is a Internal Medicine Physician provider in Fairfield, CA (NPI 1447322243).
Provider details
- NPI number
- 1447322243
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A68131 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 56 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 161 | 74 |
| Losartan Potassium | 78 | 36 |
| Amlodipine Besylate | 77 | 39 |
| Levothyroxine Sodium | 75 | 30 |
| Atenolol | 72 | 33 |
| Lisinopril | 68 | 35 |
| Fluticasone Propionate | 63 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-15
- Last updated
- 2022-01-10
Frequently asked questions
- What is Cassandra Whitmore's NPI number?
- Cassandra Whitmore's National Provider Identifier (NPI) is 1447322243, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cassandra Whitmore's specialty?
- Cassandra Whitmore is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Cassandra Whitmore located?
- Cassandra Whitmore's practice location on file with NPPES is 1550 Gateway Blvd, Fairfield, CA 94533-6901.
- What is Cassandra Whitmore's phone number?
- The practice phone number listed in the NPPES registry for Cassandra Whitmore is (707) 427-4000.
- Does Cassandra Whitmore accept Medicare?
- Cassandra Whitmore is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Cassandra Whitmore's NPI active?
- Yes — Cassandra Whitmore's NPI (1447322243) is active in the NPPES registry as of the last update on 2022-01-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.