Merin Mathew, D.O.
NPI 1114371176 · Hospitalist Physician · Evanston, IL
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Merin Mathew, D.O. is a Hospitalist Physician provider in Evanston, IL (NPI 1114371176).
Provider details
- NPI number
- 1114371176
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- No
- License
- 036166722 (IL)
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 tenure25% of score
10 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
525 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 238 | $81 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 172 | $123 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 60 | $118 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 42 | $176 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 13 | $136 |
Typical Medicare-allowed amounts for these services range $81–$176 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$35 across 1 record (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)
- 1653 W Congress PkwyChicago, IL 60612-3833Phone: (312) 945-5000
Registry dates
- Enumerated
- 2016-04-15
- Last updated
- 2025-08-26
- Certified
- 2025-08-26
Frequently asked questions
- What is Merin Mathew's NPI number?
- Merin Mathew's National Provider Identifier (NPI) is 1114371176, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Merin Mathew's specialty?
- Merin Mathew is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Merin Mathew located?
- Merin Mathew's practice location on file with NPPES is 2650 Ridge Ave, Evanston, IL 60201-1700.
- What is Merin Mathew's phone number?
- The practice phone number listed in the NPPES registry for Merin Mathew is (847) 570-1010.
- Does Merin Mathew accept Medicare?
- Merin Mathew is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Merin Mathew's NPI active?
- Yes — Merin Mathew's NPI (1114371176) is active in the NPPES registry as of the last update on 2025-08-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.