Thomas Neff, MD
NPI 1679504898 · Anesthesiology Physician · Berwyn, IL
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thomas Neff, MD is a Anesthesiology Physician provider in Berwyn, IL (NPI 1679504898).
Provider details
- NPI number
- 1679504898
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 036-109070 (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
19 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
515 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) |
|---|---|---|
| Injection of Substance Into Lower Spine Canal Using Imaging Guidance62323 | 114 | $92 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 74 | $61 |
| Anesthesia for Other Procedure on Esophagus, Stomach, Or Upper Small Bowel Using an Endoscope00731 | 39 | $105 |
| Anesthesia for Other Procedure on Large Bowel Using an Endoscope00811 | 38 | $90 |
| Insertion of Artery Tube for Blood Sampling Or Infusion Through Skin36620 | 30 | $40 |
| Ultrasonic Guidance for Blood Vessel Access76937 | 28 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$41 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
Registry dates
- Enumerated
- 2006-07-05
- Last updated
- 2007-07-08
Frequently asked questions
- What is Thomas Neff's NPI number?
- Thomas Neff's National Provider Identifier (NPI) is 1679504898, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Neff's specialty?
- Thomas Neff is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Thomas Neff located?
- Thomas Neff's practice location on file with NPPES is 3249 Oak Park Ave, Berwyn, IL 60402-3429.
- What is Thomas Neff's phone number?
- The practice phone number listed in the NPPES registry for Thomas Neff is (708) 783-3667.
- Does Thomas Neff accept Medicare?
- Thomas Neff is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thomas Neff's NPI active?
- Yes — Thomas Neff's NPI (1679504898) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.