Robert Mack, M.D. P C
NPI 1932107778 · Ophthalmology Physician · Hoffman Estates, IL
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Robert Mack, M.D. P C is a Ophthalmology Physician provider in Hoffman Estates, IL (NPI 1932107778).
Provider details
- NPI number
- 1932107778
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D. P C
- Sex
- Male
- Sole proprietor
- No
- License
- 036-090403 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Other Service Providers
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
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
5,138 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 1,378 | $98 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 518 | $139 |
| Imaging of Retina92134 | 515 | $42 |
| Established Patient Complete Exam of Visual System92014 | 417 | $133 |
| Closure of Tear Duct Opening Using Plug68761 | 341 | $120 |
| Imaging of Optic Nerve92133 | 239 | $37 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 32 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 1,024 | 221 |
| Timolol Maleate | 762 | 223 |
| Prednisolone Acetate | 557 | 294 |
| Cyclosporinebrand: Restasis | 460 | 160 |
| Brimonidine Tartrate | 392 | 148 |
| Ofloxacin | 363 | 218 |
| Acyclovir | 226 | 61 |
| Cyclosporine | 204 | 72 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$48 across 2 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
Registry dates
- Enumerated
- 2005-07-13
- Last updated
- 2022-12-28
- Certified
- 2022-12-28
Frequently asked questions
- What is Robert Mack's NPI number?
- Robert Mack's National Provider Identifier (NPI) is 1932107778, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Mack's specialty?
- Robert Mack is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Robert Mack located?
- Robert Mack's practice location on file with NPPES is 1220 W Higgins Rd, Hoffman Estates, IL 60169-4033.
- What is Robert Mack's phone number?
- The practice phone number listed in the NPPES registry for Robert Mack is (847) 755-9393.
- Does Robert Mack accept Medicare?
- Robert Mack is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Robert Mack's NPI active?
- Yes — Robert Mack's NPI (1932107778) is active in the NPPES registry as of the last update on 2022-12-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.