Yi Lin Ngai
NPI 1811312408 · Adult Health Nurse Practitioner · San Francisco, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Yi Lin Ngai is a Adult Health Nurse Practitioner provider in San Francisco, CA (NPI 1811312408).
Provider details
- NPI number
- 1811312408
- Entity type
- Individual
- Primary specialty
- Adult Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- Yes
- License
- 23468 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
12 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
863 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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 does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 257 | $60 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 143 | $94 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 126 | $132 |
| Administration of Influenza Virus VaccineG0008 | 86 | $2 |
| Telephone Medical Discussion With Physician, 11-20 Minutes99442 | 80 | $67 |
| Admn Sarscov2 Vacc 1 Dose90480 | 54 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 47 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 491 | 169 |
| Amlodipine Besylate | 227 | 80 |
| Losartan Potassium | 211 | 72 |
| Alendronate Sodium | 116 | 47 |
| Metformin Hcl | 115 | 42 |
| Metoprolol Succinate | 91 | 37 |
| Pravastatin Sodium | 84 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2014-02-19
- Last updated
- 2014-02-19
Frequently asked questions
- What is Yi Lin Ngai's NPI number?
- Yi Lin Ngai's National Provider Identifier (NPI) is 1811312408, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Yi Lin Ngai's specialty?
- Yi Lin Ngai is listed in the NPPES registry with a primary specialty of Adult Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Yi Lin Ngai located?
- Yi Lin Ngai's practice location on file with NPPES is 929 Clay St, San Francisco, CA 94108-1556.
- What is Yi Lin Ngai's phone number?
- The practice phone number listed in the NPPES registry for Yi Lin Ngai is (415) 956-6633.
- Does Yi Lin Ngai accept Medicare?
- Yi Lin Ngai is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Yi Lin Ngai's NPI active?
- Yes — Yi Lin Ngai's NPI (1811312408) is active in the NPPES registry as of the last update on 2014-02-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.