Karry Ngai, M.D.
NPI 1982899381 · Internal Medicine Physician · Santa Clara, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karry Ngai, M.D. is a Internal Medicine Physician provider in Santa Clara, CA (NPI 1982899381).
Provider details
- NPI number
- 1982899381
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A100654 (CA)
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
18 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 · 77 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 277 | 106 |
| Amlodipine Besylate | 151 | 56 |
| Losartan Potassium | 142 | 52 |
| Levothyroxine Sodium | 133 | 46 |
| Lisinopril | 112 | 47 |
| Rosuvastatin Calcium | 106 | 41 |
| Fluticasone Propionate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-09-09
- Last updated
- 2021-12-14
Frequently asked questions
- What is Karry Ngai's NPI number?
- Karry Ngai's National Provider Identifier (NPI) is 1982899381, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karry Ngai's specialty?
- Karry Ngai is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Karry Ngai located?
- Karry Ngai's practice location on file with NPPES is 710 Lawrence Expy, Santa Clara, CA 95051-5173.
- What is Karry Ngai's phone number?
- The practice phone number listed in the NPPES registry for Karry Ngai is (408) 851-1000.
- Does Karry Ngai accept Medicare?
- Karry Ngai is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karry Ngai's NPI active?
- Yes — Karry Ngai's NPI (1982899381) is active in the NPPES registry as of the last update on 2021-12-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.