Tobby Mathew, M.D.
NPI 1962701342 · Internal Medicine Physician · Naperville, IL
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tobby Mathew, M.D. is a Internal Medicine Physician provider in Naperville, IL (NPI 1962701342).
Provider details
- NPI number
- 1962701342
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 036-134706 (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
15 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
4,613 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 853 | $131 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 561 | $9 |
| Hemoglobin A1c Level83036 | 410 | $10 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 409 | $10 |
| Blood Test, Lipids (cholesterol and Triglycerides)80061 | 377 | $13 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 337 | $8 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 101 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 468 | 136 |
| Atorvastatin Calcium | 447 | 132 |
| Levothyroxine Sodium | 292 | 75 |
| Metformin Hcl | 232 | 59 |
| Omeprazole | 219 | 65 |
| Lisinopril | 219 | 65 |
| Amlodipine Besylate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$720 across 35 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
- 2011-03-24
- Last updated
- 2023-08-16
- Certified
- 2023-08-16
Frequently asked questions
- What is Tobby Mathew's NPI number?
- Tobby Mathew's National Provider Identifier (NPI) is 1962701342, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tobby Mathew's specialty?
- Tobby Mathew is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Tobby Mathew located?
- Tobby Mathew's practice location on file with NPPES is 1020 E Ogden Ave, Naperville, IL 60563-8609.
- What is Tobby Mathew's phone number?
- The practice phone number listed in the NPPES registry for Tobby Mathew is (630) 717-8707.
- Does Tobby Mathew accept Medicare?
- Tobby Mathew is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tobby Mathew's NPI active?
- Yes — Tobby Mathew's NPI (1962701342) is active in the NPPES registry as of the last update on 2023-08-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.