Thomas Gavagan, MPH
NPI 1558441808 · Family Medicine Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thomas Gavagan, MPH is a Family Medicine Physician provider in Chicago, IL (NPI 1558441808).
Provider details
- NPI number
- 1558441808
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MPH
- Sex
- Male
- Sole proprietor
- No
- License
- 036-067636 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metformin Hcl | 30 | 14 |
| Enalapril Maleate | 22 | 12 |
| Lisinopril | 22 | — |
| Atorvastatin Calcium | 20 | — |
| Amlodipine Besylate | 17 | — |
| Glipizide | 16 | — |
| Glipizidebrand: Glipizide Er | 15 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$27 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)
- 1100 W 34th StHouston, TX 77018-6206Phone: (713) 861-3939Fax: (713) 867-7819
Registry dates
- Enumerated
- 2006-10-17
- Last updated
- 2021-04-23
- Certified
- 2021-04-23
Frequently asked questions
- What is Thomas Gavagan's NPI number?
- Thomas Gavagan's National Provider Identifier (NPI) is 1558441808, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Gavagan's specialty?
- Thomas Gavagan is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Thomas Gavagan located?
- Thomas Gavagan's practice location on file with NPPES is 2231 E 95th St, Chicago, IL 60617-4804.
- What is Thomas Gavagan's phone number?
- The practice phone number listed in the NPPES registry for Thomas Gavagan is (773) 768-7700.
- Does Thomas Gavagan accept Medicare?
- Thomas Gavagan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thomas Gavagan's NPI active?
- Yes — Thomas Gavagan's NPI (1558441808) is active in the NPPES registry as of the last update on 2021-04-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.