Thomas Gehlbach, M.D.
NPI 1891905600 · Pulmonary Disease Physician · Madison, WI
Enrolled with Medicare as Practitioner - Pulmonary Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thomas Gehlbach, M.D. is a Pulmonary Disease Physician provider in Madison, WI (NPI 1891905600).
Provider details
- NPI number
- 1891905600
- Entity type
- Individual
- Primary specialty
- Pulmonary Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 036-129678 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,779 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 | 413 | $120 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 302 | $15 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 134 | $73 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 133 | $154 |
| Test to Determine Lung Volumes Using Sensors94726 | 115 | $11 |
| Test to Examine How Well the Lungs Exchange Gases |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 30 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Fluticasone/Umeclidin/Vilanterbrand: Trelegy Ellipta | 370 | 64 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 151 | 57 |
| Prednisone | 138 | 64 |
| Fluticasone/Vilanterolbrand: Breo Ellipta | 128 | 17 |
| Fluticasone Propion/Salmeterolbrand: Fluticasone-Salmeterol | 92 | 22 |
| Azithromycin | 80 | 21 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$11 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 (2)
- 215 E 1st St Ste 111Dixon, IL 61021Phone: (815) 285-5966Fax: (815) 285-5968
- 215 E. 1st St., Suite 153Ksb Medical GroupDixon, IL 61021-0000Phone: (815) 285-5966Fax: (815) 285-5968
Registry dates
- Enumerated
- 2007-05-23
- Last updated
- 2022-10-04
- Certified
- 2022-10-04
Frequently asked questions
- What is Thomas Gehlbach's NPI number?
- Thomas Gehlbach's National Provider Identifier (NPI) is 1891905600, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Gehlbach's specialty?
- Thomas Gehlbach is listed in the NPPES registry with a primary specialty of Pulmonary Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Thomas Gehlbach located?
- Thomas Gehlbach's practice location on file with NPPES is 700 S Park St Ste a, Madison, WI 53715-1830.
- What is Thomas Gehlbach's phone number?
- The practice phone number listed in the NPPES registry for Thomas Gehlbach is (608) 260-2900.
- Does Thomas Gehlbach accept Medicare?
- Thomas Gehlbach is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thomas Gehlbach's NPI active?
- Yes — Thomas Gehlbach's NPI (1891905600) is active in the NPPES registry as of the last update on 2022-10-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.