John Clay, DO
NPI 1780094425 · Family Medicine Physician · Sierra Vista, AZ
John Clay, DO is a Family Medicine Physician provider in Sierra Vista, AZ (NPI 1780094425).
Provider details
- NPI number
- 1780094425
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 007355 (AZ)
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
12 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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 · 6 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 27 | 18 |
| Levothyroxine Sodium | 19 | — |
| Amlodipine Besylate | 17 | — |
| Omeprazole | 16 | — |
| Lisinopril | 14 | — |
| Rosuvastatin Calcium | 12 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they include cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (1)
- 300 El Camino RealSierra Vista, AZ 85635-2812Phone: (419) 296-0523
Registry dates
- Enumerated
- 2014-05-03
- Last updated
- 2022-07-21
Frequently asked questions
- What is John Clay's NPI number?
- John Clay's National Provider Identifier (NPI) is 1780094425, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Clay's specialty?
- John Clay is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Clay located?
- John Clay's practice location on file with NPPES is 2585 E Wilcox Dr Ste C, Sierra Vista, AZ 85635-2822.
- What is John Clay's phone number?
- The practice phone number listed in the NPPES registry for John Clay is (520) 459-0000.
- Is John Clay's NPI active?
- Yes — John Clay's NPI (1780094425) is active in the NPPES registry as of the last update on 2022-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.