Christina Hamilton, MD
NPI 1932457421 · Family Medicine Physician · Martinez, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christina Hamilton, MD is a Family Medicine Physician provider in Martinez, CA (NPI 1932457421).
Provider details
- NPI number
- 1932457421
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- A122150 (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
13 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 · 32 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 122 | 68 |
| Levothyroxine Sodium | 67 | 32 |
| Amlodipine Besylate | 54 | 25 |
| Lisinopril | 49 | 28 |
| Lisinopril/Hydrochlorothiazidebrand: Lisinopril-Hydrochlorothiazide | 48 | 22 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 34 | 15 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2012-08-15
- Last updated
- 2022-02-11
Frequently asked questions
- What is Christina Hamilton's NPI number?
- Christina Hamilton's National Provider Identifier (NPI) is 1932457421, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christina Hamilton's specialty?
- Christina Hamilton is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Christina Hamilton located?
- Christina Hamilton's practice location on file with NPPES is 2500 Alhambra Ave, Martinez, CA 94553-3156.
- What is Christina Hamilton's phone number?
- The practice phone number listed in the NPPES registry for Christina Hamilton is (925) 370-5000.
- Does Christina Hamilton accept Medicare?
- Christina Hamilton is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christina Hamilton's NPI active?
- Yes — Christina Hamilton's NPI (1932457421) is active in the NPPES registry as of the last update on 2022-02-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.