Don Endress, MD
NPI 1588664684 · General Practice Physician · Waterford, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Don Endress, MD is a General Practice Physician provider in Waterford, CA (NPI 1588664684).
Provider details
- NPI number
- 1588664684
- Entity type
- Individual
- Primary specialty
- General Practice PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- A53357 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
20 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 · 125 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 836 | 211 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 651 | 68 |
| Losartan Potassium | 444 | 115 |
| Amlodipine Besylate | 435 | 110 |
| Gabapentin | 336 | 76 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 315 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$217 across 15 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-07-29
- Last updated
- 2024-02-01
- Certified
- 2024-02-01
Frequently asked questions
- What is Don Endress's NPI number?
- Don Endress's National Provider Identifier (NPI) is 1588664684, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Don Endress's specialty?
- Don Endress is listed in the NPPES registry with a primary specialty of General Practice Physician (Allopathic & Osteopathic Physicians).
- Where is Don Endress located?
- Don Endress's practice location on file with NPPES is 12700 Welch St, Waterford, CA 95386-8765.
- What is Don Endress's phone number?
- The practice phone number listed in the NPPES registry for Don Endress is (209) 874-2345.
- Does Don Endress accept Medicare?
- Don Endress is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Don Endress's NPI active?
- Yes — Don Endress's NPI (1588664684) is active in the NPPES registry as of the last update on 2024-02-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.