Donald Hay, D.O.
NPI 1326040098 · Family Medicine Physician · Darlington, WI
Enrolled with Medicare as Practitioner - Osteopathic Manipulative Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Donald Hay, D.O. is a Family Medicine Physician provider in Darlington, WI (NPI 1326040098).
Provider details
- NPI number
- 1326040098
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- K8203 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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 · 70 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 170 | 38 |
| Apixabanbrand: Eliquis | 103 | — |
| Losartan Potassium | 81 | 20 |
| Rosuvastatin Calcium | 76 | 22 |
| Lisinopril | 76 | 19 |
| Omeprazole | 75 | 24 |
| Metoprolol Succinate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$36 across 2 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
- 2005-08-12
- Last updated
- 2020-02-18
- Certified
- 2020-02-18
Frequently asked questions
- What is Donald Hay's NPI number?
- Donald Hay's National Provider Identifier (NPI) is 1326040098, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Donald Hay's specialty?
- Donald Hay is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Donald Hay located?
- Donald Hay's practice location on file with NPPES is 731 Clay St, Darlington, WI 53530-1225.
- What is Donald Hay's phone number?
- The practice phone number listed in the NPPES registry for Donald Hay is (608) 776-4497.
- Does Donald Hay accept Medicare?
- Donald Hay is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Donald Hay's NPI active?
- Yes — Donald Hay's NPI (1326040098) is active in the NPPES registry as of the last update on 2020-02-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.