Herbert Sy, NP
NPI 1114512886 · Family Nurse Practitioner · Lancaster, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Herbert Sy, NP is a Family Nurse Practitioner provider in Lancaster, CA (NPI 1114512886).
Provider details
- NPI number
- 1114512886
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Male
- Sole proprietor
- No
- License
- 95016819 (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
5 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
87 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) |
|---|---|---|
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 57 | $104 |
| Emergency Department Visit With High Level of Medical Decision Making99285 | 30 | $150 |
Typical Medicare-allowed amounts for these services range $104–$150 (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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 52 | 46 |
| Ondansetronbrand: Ondansetron Odt | 47 | 47 |
| Cephalexin | 40 | 40 |
| Prednisone | 34 | 33 |
| Tramadol Hcl | 34 | 34 |
| Azithromycin | 22 | 22 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass |
Practice location
Mailing address
Registry dates
- Enumerated
- 2021-03-04
- Last updated
- 2025-06-27
- Certified
- 2021-03-04
Frequently asked questions
- What is Herbert Sy's NPI number?
- Herbert Sy's National Provider Identifier (NPI) is 1114512886, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Herbert Sy's specialty?
- Herbert Sy is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Herbert Sy located?
- Herbert Sy's practice location on file with NPPES is 43112 15th St W, Lancaster, CA 93534-6219.
- What is Herbert Sy's phone number?
- The practice phone number listed in the NPPES registry for Herbert Sy is (661) 729-4061.
- Does Herbert Sy accept Medicare?
- Herbert Sy is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Herbert Sy's NPI active?
- Yes — Herbert Sy's NPI (1114512886) is active in the NPPES registry as of the last update on 2025-06-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.