Zachary Walder, DO
NPI 1417585597 · Internal Medicine Physician · Placerville, CA
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Zachary Walder, DO is a Internal Medicine Physician provider in Placerville, CA (NPI 1417585597).
Provider details
- NPI number
- 1417585597
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 20A21369 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
6 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 · 75 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 165 | 58 |
| Lisinopril | 164 | 51 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 127 | 31 |
| Amlodipine Besylate | 100 | 38 |
| Gabapentin | 94 | 29 |
| Omeprazole | 83 | 30 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2020-04-01
- Last updated
- 2024-01-04
- Certified
- 2024-01-04
Frequently asked questions
- What is Zachary Walder's NPI number?
- Zachary Walder's National Provider Identifier (NPI) is 1417585597, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Zachary Walder's specialty?
- Zachary Walder is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Zachary Walder located?
- Zachary Walder's practice location on file with NPPES is 4212 Missouri Flat Rd, Placerville, CA 95667-6269.
- What is Zachary Walder's phone number?
- The practice phone number listed in the NPPES registry for Zachary Walder is (530) 621-7700.
- Does Zachary Walder accept Medicare?
- Zachary Walder is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Zachary Walder's NPI active?
- Yes — Zachary Walder's NPI (1417585597) is active in the NPPES registry as of the last update on 2024-01-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.