Winnie Ruo, M.D
NPI 1194767988 · Anesthesiology Physician · Orange, CA
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Winnie Ruo, M.D is a Anesthesiology Physician provider in Orange, CA (NPI 1194767988).
Provider details
- NPI number
- 1194767988
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D
- Sex
- Female
- Sole proprietor
- No
- License
- 036084276 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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
100 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) |
|---|---|---|
| Anesthesia for Lens Surgery00142 | 85 | $132 |
| Anesthesia for Other Procedure on Eye00140 | 15 | $168 |
Typical Medicare-allowed amounts for these services range $132–$168 (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
- 2006-06-13
- Last updated
- 2022-08-12
- Certified
- 2022-08-12
Frequently asked questions
- What is Winnie Ruo's NPI number?
- Winnie Ruo's National Provider Identifier (NPI) is 1194767988, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Winnie Ruo's specialty?
- Winnie Ruo is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Winnie Ruo located?
- Winnie Ruo's practice location on file with NPPES is 681 S Parker St Ste 150, Orange, CA 92868-4761.
- What is Winnie Ruo's phone number?
- The practice phone number listed in the NPPES registry for Winnie Ruo is (714) 744-0900.
- Does Winnie Ruo accept Medicare?
- Winnie Ruo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Winnie Ruo's NPI active?
- Yes — Winnie Ruo's NPI (1194767988) is active in the NPPES registry as of the last update on 2022-08-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.