Jeffrey Grzybowski, M.D.
NPI 1114381647 · Anesthesiology Physician · Madison, WI
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jeffrey Grzybowski, M.D. is a Anesthesiology Physician provider in Madison, WI (NPI 1114381647).
Provider details
- NPI number
- 1114381647
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 70165 (WI)
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 tenure28% of score
10 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
221 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 Procedure for Total Knee Joint Replacement01402 | 36 | $174 |
| Daily Hospital Management of Continuous Spinal Drug Administration01996 | 36 | $58 |
| Anesthesia for Total Hip Replacement01214 | 32 | $176 |
| Injection of Local Anesthetic for Abdominal Wall Pain Control on Both Sides Using Imaging Guidance64488 | 30 | $63 |
| Injection of Anesthetic Agent And/Or Steroid Into Thigh Nerve (femoral Nerve)64447 | 25 | $55 |
| Injection of Anesthetic Agent And/Or Steroid Into Arm Nerve Bundle (brachial Plexus)64415 | 21 | $64 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2016-04-11
- Last updated
- 2022-01-24
- Certified
- 2022-01-24
Frequently asked questions
- What is Jeffrey Grzybowski's NPI number?
- Jeffrey Grzybowski's National Provider Identifier (NPI) is 1114381647, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jeffrey Grzybowski's specialty?
- Jeffrey Grzybowski is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Jeffrey Grzybowski located?
- Jeffrey Grzybowski's practice location on file with NPPES is 600 Highland Ave, Madison, WI 53792-3328.
- What is Jeffrey Grzybowski's phone number?
- The practice phone number listed in the NPPES registry for Jeffrey Grzybowski is (608) 263-8100.
- Does Jeffrey Grzybowski accept Medicare?
- Jeffrey Grzybowski is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jeffrey Grzybowski's NPI active?
- Yes — Jeffrey Grzybowski's NPI (1114381647) is active in the NPPES registry as of the last update on 2022-01-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.