Ying-Yu Chao, GNP-BC
NPI 1043684673 · Gerontology Nurse Practitioner · Brooklyn, NY
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ying-Yu Chao, GNP-BC is a Gerontology Nurse Practitioner provider in Brooklyn, NY (NPI 1043684673).
Provider details
- NPI number
- 1043684673
- Entity type
- Individual
- Primary specialty
- Gerontology Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- GNP-BC
- Sex
- Female
- Sole proprietor
- No
- License
- F340917 (NY)
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
10 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
88 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 | 88 | $88 |
Typical Medicare-allowed amounts for these services range $88–$88 (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 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Olanzapine | 164 | 97 |
| Clonazepam | 151 | 109 |
| Quetiapine Fumarate | 143 | 83 |
| Fluoxetine Hcl | 105 | 55 |
| Sertraline Hcl | 101 | 56 |
| Lorazepam | 101 | 56 |
| Risperidone | 70 | 44 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2015-11-19
- Last updated
- 2016-10-22
Frequently asked questions
- What is Ying-Yu Chao's NPI number?
- Ying-Yu Chao's National Provider Identifier (NPI) is 1043684673, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ying-Yu Chao's specialty?
- Ying-Yu Chao is listed in the NPPES registry with a primary specialty of Gerontology Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Ying-Yu Chao located?
- Ying-Yu Chao's practice location on file with NPPES is 837 58th Street, 3rd Floor, Brooklyn, NY 11220.
- What is Ying-Yu Chao's phone number?
- The practice phone number listed in the NPPES registry for Ying-Yu Chao is (718) 686-1533.
- Does Ying-Yu Chao accept Medicare?
- Ying-Yu Chao is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ying-Yu Chao's NPI active?
- Yes — Ying-Yu Chao's NPI (1043684673) is active in the NPPES registry as of the last update on 2016-10-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.