Timothy Chandler, D.O.
NPI 1740433622 · Internal Medicine Physician · Lancaster, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Timothy Chandler, D.O. is a Internal Medicine Physician provider in Lancaster, CA (NPI 1740433622).
Provider details
- NPI number
- 1740433622
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
- Medical Physician Assistant363AM0700X
Physician Assistants & Advanced Practice Nursing Providers
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
17 yrs in NPPES registry
- Profile completeness38% of score
83% 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 · 117 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 482 | 183 |
| Lisinopril | 302 | 121 |
| Amlodipine Besylate | 272 | 101 |
| Losartan Potassium | 232 | 88 |
| Rosuvastatin Calcium | 208 | 84 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 199 | 41 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-10-23
- Last updated
- 2021-11-29
- Certified
- 2020-01-24
Frequently asked questions
- What is Timothy Chandler's NPI number?
- Timothy Chandler's National Provider Identifier (NPI) is 1740433622, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Timothy Chandler's specialty?
- Timothy Chandler is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Timothy Chandler located?
- Timothy Chandler's practice location on file with NPPES is 43112 15th St W, Lancaster, CA 93534-6219.
- What is Timothy Chandler's phone number?
- The practice phone number listed in the NPPES registry for Timothy Chandler is (833) 574-2273.
- Does Timothy Chandler accept Medicare?
- Timothy Chandler is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Timothy Chandler's NPI active?
- Yes — Timothy Chandler's NPI (1740433622) is active in the NPPES registry as of the last update on 2021-11-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.