Zinying Chao, DNP, APRN, FNP-C
NPI 1639837503 · Family Nurse Practitioner · Long Beach, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Zinying Chao, DNP, APRN, FNP-C is a Family Nurse Practitioner provider in Long Beach, CA (NPI 1639837503).
Provider details
- NPI number
- 1639837503
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- DNP, APRN, FNP-C
- Sex
- Female
- Sole proprietor
- Yes
- License
- 95019305 (CA)
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
4 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
49 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 37 | $84 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 12 | $118 |
Typical Medicare-allowed amounts for these services range $84–$118 (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 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 33 | 15 |
| Omeprazole | 25 | 14 |
| Nitrofurantoin Monohyd/M-Crystbrand: Nitrofurantoin Mono-Macro | 22 | 19 |
| Amlodipine Besylate | 22 | 14 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 20 | 19 |
| Azithromycin | 18 | 14 |
Practice location
Mailing address
Additional practice locations (1)
- 3932 Long Beach Blvd # BLong Beach, CA 90807-2615Phone: (562) 304-2100
Registry dates
- Enumerated
- 2021-12-07
- Last updated
- 2025-12-07
- Certified
- 2025-12-07
Frequently asked questions
- What is Zinying Chao's NPI number?
- Zinying Chao's National Provider Identifier (NPI) is 1639837503, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Zinying Chao's specialty?
- Zinying Chao is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Zinying Chao located?
- Zinying Chao's practice location on file with NPPES is 4401 Atlantic Ave Ste 300, Long Beach, CA 90807-2249.
- What is Zinying Chao's phone number?
- The practice phone number listed in the NPPES registry for Zinying Chao is (562) 481-3500.
- Does Zinying Chao accept Medicare?
- Zinying Chao is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Zinying Chao's NPI active?
- Yes — Zinying Chao's NPI (1639837503) is active in the NPPES registry as of the last update on 2025-12-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.