Marc Janson, M.D.
NPI 1164416129 · Anesthesiology Physician · Louisville, KY
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marc Janson, M.D. is a Anesthesiology Physician provider in Louisville, KY (NPI 1164416129).
Provider details
- NPI number
- 1164416129
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 39543 (KY)
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
20 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
90 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) |
|---|---|---|
| Anesthesia for Other Procedure on Esophagus, Stomach, Or Upper Small Bowel Using an Endoscope00731 | 15 | $125 |
| Anesthesia for Shock Wave Therapy for Urinary System Stones Without Water Bath00873 | 15 | $144 |
| Injection of Anesthetic Agent And/Or Steroid Into Thigh Nerve (femoral Nerve)64447 | 13 | $49 |
| Ultrasonic Guidance for Needle Placement76942 | 13 | $28 |
| Ultrasonic Guidance for Blood Vessel Access76937 | 12 | $13 |
| Anesthesia for Procedure for Total Knee Joint Replacement01402 | 11 | $345 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$47 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
Additional practice locations (1)
- 4000 Kresge WayLouisville, KY 40207-4605Phone: (502) 259-5391Fax: (502) 259-9733
Registry dates
- Enumerated
- 2005-09-07
- Last updated
- 2026-04-17
- Certified
- 2026-04-17
Frequently asked questions
- What is Marc Janson's NPI number?
- Marc Janson's National Provider Identifier (NPI) is 1164416129, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marc Janson's specialty?
- Marc Janson is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Marc Janson located?
- Marc Janson's practice location on file with NPPES is 200 Abraham Flexner Way, Louisville, KY 40202-2877.
- What is Marc Janson's phone number?
- The practice phone number listed in the NPPES registry for Marc Janson is (502) 852-5851.
- Does Marc Janson accept Medicare?
- Marc Janson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marc Janson's NPI active?
- Yes — Marc Janson's NPI (1164416129) is active in the NPPES registry as of the last update on 2026-04-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.