Elaine Worcester
NPI 1568525087 · Nephrology Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Elaine Worcester is a Nephrology Physician provider in Chicago, IL (NPI 1568525087).
Provider details
- NPI number
- 1568525087
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- No
- License
- 036063171 (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
269 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 149 | $128 |
| Hemodialysis Procedure With Physician Evaluation90935 | 55 | $77 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 49 | $143 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 16 | $191 |
Typical Medicare-allowed amounts for these services range $77–$191 (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
- 2006-12-18
- Last updated
- 2022-10-24
Frequently asked questions
- What is Elaine Worcester's NPI number?
- Elaine Worcester's National Provider Identifier (NPI) is 1568525087, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Elaine Worcester's specialty?
- Elaine Worcester is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Elaine Worcester located?
- Elaine Worcester's practice location on file with NPPES is 5841 S Maryland Ave, Chicago, IL 60637-1443.
- What is Elaine Worcester's phone number?
- The practice phone number listed in the NPPES registry for Elaine Worcester is (888) 824-0200.
- Does Elaine Worcester accept Medicare?
- Elaine Worcester is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Elaine Worcester's NPI active?
- Yes — Elaine Worcester's NPI (1568525087) is active in the NPPES registry as of the last update on 2022-10-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.