Ritu Nayar, MD
NPI 1780611632 · Cytopathology Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ritu Nayar, MD is a Cytopathology Physician provider in Chicago, IL (NPI 1780611632).
Provider details
- NPI number
- 1780611632
- Entity type
- Individual
- Primary specialty
- Cytopathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
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
83% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,399 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) |
|---|---|---|
| Cell Examination of Specimen, Selective Cellular Enhancement Technique88112 | 428 | $28 |
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 189 | $37 |
| Cell Examination of Specimen, Concentration Technique88108 | 136 | $23 |
| Pathology Cytologic Examination of Specimen During Surgery, Each Additional Site88334 | 125 | $37 |
| Evaluation of Fine Needle Aspirate With Interpretation and Report88173 | 108 | $68 |
| Special Stained Specimen Slides to Examine Tissue, Each Additional Procedure88341 | 93 | $28 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-27
- Last updated
- 2007-11-01
Frequently asked questions
- What is Ritu Nayar's NPI number?
- Ritu Nayar's National Provider Identifier (NPI) is 1780611632, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ritu Nayar's specialty?
- Ritu Nayar is listed in the NPPES registry with a primary specialty of Cytopathology Physician (Allopathic & Osteopathic Physicians).
- Where is Ritu Nayar located?
- Ritu Nayar's practice location on file with NPPES is 680 N Lake Shore Dr, Chicago, IL 60611-4546.
- What is Ritu Nayar's phone number?
- The practice phone number listed in the NPPES registry for Ritu Nayar is (312) 695-9797.
- Does Ritu Nayar accept Medicare?
- Ritu Nayar is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ritu Nayar's NPI active?
- Yes — Ritu Nayar's NPI (1780611632) is active in the NPPES registry as of the last update on 2007-11-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.