Sarah Day, MD
NPI 1831831965 · Internal Medicine Physician · Amarillo, TX
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sarah Day, MD is a Internal Medicine Physician provider in Amarillo, TX (NPI 1831831965).
Provider details
- NPI number
- 1831831965
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
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
4 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
3 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 · 5 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Lisinopril | 34 |
| Amlodipine Besylate | 31 |
| Metformin Hcl | 17 |
| Tamsulosin Hcl | 14 |
| Atorvastatin Calcium | 12 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude 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 no Part D record, 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 (2)
- 6010 W Amarillo BlvdAmarillo, TX 79106-1990Phone: (806) 355-9705Fax: (806) 354-5717
- 1501 S Coulter StAmarillo, TX 79106-1770Phone: (806) 414-9100Fax: (806) 354-5717
Registry dates
- Enumerated
- 2022-04-09
- Last updated
- 2025-05-26
- Certified
- 2025-05-26
Frequently asked questions
- What is Sarah Day's NPI number?
- Sarah Day's National Provider Identifier (NPI) is 1831831965, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sarah Day's specialty?
- Sarah Day is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Sarah Day located?
- Sarah Day's practice location on file with NPPES is 1400 S Coulter St Ste 2500, Amarillo, TX 79106-1786.
- What is Sarah Day's phone number?
- The practice phone number listed in the NPPES registry for Sarah Day is (806) 414-9100.
- Does Sarah Day accept Medicare?
- Sarah Day is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sarah Day's NPI active?
- Yes — Sarah Day's NPI (1831831965) is active in the NPPES registry as of the last update on 2025-05-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.