Robert Gay, M.D.
NPI 1427057298 · Anesthesiology Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Robert Gay, M.D. is a Anesthesiology Physician provider in Chicago, IL (NPI 1427057298).
Provider details
- NPI number
- 1427057298
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G184019 (CA)
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
165 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 Other Procedure on Esophagus, Stomach, Or Upper Small Bowel Using an Endoscope00731 | 39 | $159 |
| Anesthesia for Procedure for Total Knee Joint Replacement01402 | 38 | $314 |
| Continuous Infusion of Anesthetic Agent And/Or Steroid Into Thigh Nerve (femoral Nerve) Through Catheter64448 | 22 | $72 |
| Anesthesia for Other Procedure on Large Bowel Using an Endoscope00811 | 20 | $143 |
| Anesthesia for Procedure on Small and Large Bowel Using an Endoscope00813 | 12 | $188 |
| Anesthesia for Other Repair of Lower Abdomen Hernia (1 Year Or Older)00830 | 12 | $230 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-07-14
- Last updated
- 2024-09-17
- Certified
- 2024-09-17
Frequently asked questions
- What is Robert Gay's NPI number?
- Robert Gay's National Provider Identifier (NPI) is 1427057298, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Gay's specialty?
- Robert Gay is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Robert Gay located?
- Robert Gay's practice location on file with NPPES is 1 E Erie St, Chicago, IL 60611-2740.
- What is Robert Gay's phone number?
- The practice phone number listed in the NPPES registry for Robert Gay is (312) 649-3939.
- Does Robert Gay accept Medicare?
- Robert Gay is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Robert Gay's NPI active?
- Yes — Robert Gay's NPI (1427057298) is active in the NPPES registry as of the last update on 2024-09-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.