Katherine Pierson, MD
NPI 1831659457 · Family Medicine Physician · Vacaville, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherine Pierson, MD is a Family Medicine Physician provider in Vacaville, CA (NPI 1831659457).
Provider details
- NPI number
- 1831659457
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A190510 (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
7 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 · 93 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 235 | 94 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 149 | 79 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 146 | 24 |
| Amlodipine Besylate | 131 | 51 |
| Levothyroxine Sodium | 130 | 49 |
| Losartan Potassium | 122 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2019-03-20
- Last updated
- 2024-07-09
- Certified
- 2023-08-29
Frequently asked questions
- What is Katherine Pierson's NPI number?
- Katherine Pierson's National Provider Identifier (NPI) is 1831659457, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Pierson's specialty?
- Katherine Pierson is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Katherine Pierson located?
- Katherine Pierson's practice location on file with NPPES is 1 Quality Dr, Vacaville, CA 95688-9494.
- What is Katherine Pierson's phone number?
- The practice phone number listed in the NPPES registry for Katherine Pierson is (707) 624-4000.
- Does Katherine Pierson accept Medicare?
- Katherine Pierson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katherine Pierson's NPI active?
- Yes — Katherine Pierson's NPI (1831659457) is active in the NPPES registry as of the last update on 2024-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.