Fon Yei Sun Wu, M.D.
NPI 1588737142 · Family Medicine Physician · Chicago, IL
Enrolled with Medicare as Practitioner - General Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Fon Yei Sun Wu, M.D. is a Family Medicine Physician provider in Chicago, IL (NPI 1588737142).
Provider details
- NPI number
- 1588737142
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 036049988 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 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
823 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 | 592 | $94 |
| Blood Glucose (sugar) Test Performed By Hand-Held Instrument82962 | 146 | $3 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 85 | $132 |
Typical Medicare-allowed amounts for these services range $3–$132 (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
- 2006-11-15
- Last updated
- 2007-07-08
Frequently asked questions
- What is Fon Yei Sun Wu's NPI number?
- Fon Yei Sun Wu's National Provider Identifier (NPI) is 1588737142, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Fon Yei Sun Wu's specialty?
- Fon Yei Sun Wu is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Fon Yei Sun Wu located?
- Fon Yei Sun Wu's practice location on file with NPPES is 2306 E 75th St, Chicago, IL 60649-3306.
- What is Fon Yei Sun Wu's phone number?
- The practice phone number listed in the NPPES registry for Fon Yei Sun Wu is (773) 731-0014.
- Does Fon Yei Sun Wu accept Medicare?
- Fon Yei Sun Wu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Fon Yei Sun Wu's NPI active?
- Yes — Fon Yei Sun Wu's NPI (1588737142) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.