Lili Yen, PA-C
NPI 1073591491 · Medical Physician Assistant · Sherman Oaks, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lili Yen, PA-C is a Medical Physician Assistant provider in Sherman Oaks, CA (NPI 1073591491).
Provider details
- NPI number
- 1073591491
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
- License
- TX PA 03352 (TX)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
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
20 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
1,935 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) |
|---|---|---|
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, at Least 10 Minutes99307 | 1,401 | $36 |
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308 | 534 | $67 |
Typical Medicare-allowed amounts for these services range $36–$67 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-01-05
- Last updated
- 2026-02-25
- Certified
- 2026-02-25
Frequently asked questions
- What is Lili Yen's NPI number?
- Lili Yen's National Provider Identifier (NPI) is 1073591491, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lili Yen's specialty?
- Lili Yen is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Lili Yen located?
- Lili Yen's practice location on file with NPPES is 4955 Van Nuys Blvd Ste 502, Sherman Oaks, CA 91403-1817.
- What is Lili Yen's phone number?
- The practice phone number listed in the NPPES registry for Lili Yen is (818) 325-0200.
- Does Lili Yen accept Medicare?
- Lili Yen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lili Yen's NPI active?
- Yes — Lili Yen's NPI (1073591491) is active in the NPPES registry as of the last update on 2026-02-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.