Benjamin Gruber, MD, PHD, FACS
NPI 1134197957 · Otolaryngology Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Otolaryngology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Benjamin Gruber, MD, PHD, FACS is a Otolaryngology Physician provider in Chicago, IL (NPI 1134197957).
Provider details
- NPI number
- 1134197957
- Entity type
- Individual
- Primary specialty
- Otolaryngology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, PHD, FACS
- Sex
- Male
- Sole proprietor
- No
- License
- 036-067590 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
356 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 76 | $114 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 71 | $90 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 58 | $56 |
| Removal of Impacted Ear Wax69210 | 49 | $49 |
| New Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 15 Minutes Or More99202 | 38 | $75 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Famotidine | 67 | 39 |
| Fluticasone Propionate | 42 | 23 |
| Tramadol Hcl | 38 | 33 |
| Methylprednisolone | 29 | 26 |
| Cephalexin | 19 | 18 |
| Ciprofloxacin Hcl/Dexamethbrand: Ciprofloxacin-Dexamethasone | 16 | 12 |
| Cefadroxil | 15 | 14 |
| Ipratropium Bromide |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$141 across 6 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 2525 S Michigan AveEar Nose and Throat Center, Mercy HospitalChicago, IL 60616-2477Phone: (312) 567-2002
Registry dates
- Enumerated
- 2006-03-09
- Last updated
- 2025-07-09
- Certified
- 2025-07-09
Frequently asked questions
- What is Benjamin Gruber's NPI number?
- Benjamin Gruber's National Provider Identifier (NPI) is 1134197957, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Benjamin Gruber's specialty?
- Benjamin Gruber is listed in the NPPES registry with a primary specialty of Otolaryngology Physician (Allopathic & Osteopathic Physicians).
- Where is Benjamin Gruber located?
- Benjamin Gruber's practice location on file with NPPES is 2535 S King Dr, Chicago, IL 60616-4746.
- What is Benjamin Gruber's phone number?
- The practice phone number listed in the NPPES registry for Benjamin Gruber is (312) 842-7117.
- Does Benjamin Gruber accept Medicare?
- Benjamin Gruber is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Benjamin Gruber's NPI active?
- Yes — Benjamin Gruber's NPI (1134197957) is active in the NPPES registry as of the last update on 2025-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.