Timothy Dauwalder, D.O.
NPI 1942379987 · Family Medicine Physician · Upland, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Timothy Dauwalder, D.O. is a Family Medicine Physician provider in Upland, CA (NPI 1942379987).
Provider details
- NPI number
- 1942379987
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 20A7875 (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 · 85 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 176 | 37 |
| Gabapentin | 123 | 31 |
| Sertraline Hcl | 111 | 20 |
| Atorvastatin Calcium | 102 | 28 |
| Donepezil Hcl | 100 | 19 |
| Amlodipine Besylate | 100 | 31 |
| Furosemide | 96 | 30 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-06
- Last updated
- 2007-07-09
Frequently asked questions
- What is Timothy Dauwalder's NPI number?
- Timothy Dauwalder's National Provider Identifier (NPI) is 1942379987, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Timothy Dauwalder's specialty?
- Timothy Dauwalder is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Timothy Dauwalder located?
- Timothy Dauwalder's practice location on file with NPPES is 1113 Alta Ave Ste 106, Upland, CA 91786-2803.
- What is Timothy Dauwalder's phone number?
- The practice phone number listed in the NPPES registry for Timothy Dauwalder is (909) 920-6672.
- Does Timothy Dauwalder accept Medicare?
- Timothy Dauwalder is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Timothy Dauwalder's NPI active?
- Yes — Timothy Dauwalder's NPI (1942379987) is active in the NPPES registry as of the last update on 2007-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.