Kevin Yin
NPI 1689311011 · Internal Medicine Physician · O Fallon, MO
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Kevin Yin is a Internal Medicine Physician provider in O Fallon, MO (NPI 1689311011).
Provider details
- NPI number
- 1689311011
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- Yes
- License
- 2025011705 (MO)
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
4 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 · 26 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 79 | 18 |
| Amlodipine Besylate | 66 | — |
| Omeprazole | 28 | — |
| Losartan Potassium | 27 | — |
| Gabapentin | 26 | — |
| Pantoprazole Sodium | 26 | — |
| Metformin Hcl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2022-05-17
- Last updated
- 2025-08-06
- Certified
- 2025-08-06
Frequently asked questions
- What is Kevin Yin's NPI number?
- Kevin Yin's National Provider Identifier (NPI) is 1689311011, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kevin Yin's specialty?
- Kevin Yin is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Kevin Yin located?
- Kevin Yin's practice location on file with NPPES is 2223 Technology Dr Ste 35, O Fallon, MO 63368-7272.
- What is Kevin Yin's phone number?
- The practice phone number listed in the NPPES registry for Kevin Yin is (636) 561-5999.
- Does Kevin Yin accept Medicare?
- Kevin Yin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Kevin Yin's NPI active?
- Yes — Kevin Yin's NPI (1689311011) is active in the NPPES registry as of the last update on 2025-08-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.