Mark Zimmerman, M.D.
NPI 1124088570 · Anesthesiology Physician · Franklin, WI
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Zimmerman, M.D. is a Anesthesiology Physician provider in Franklin, WI (NPI 1124088570).
Provider details
- NPI number
- 1124088570
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 28928 (WI)
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
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
100 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 Procedure for Total Knee Joint Replacement01402 | 27 | $268 |
| Injection of Anesthetic Agent And/Or Steroid Into Thigh Nerve (femoral Nerve)64447 | 24 | $57 |
| Other Procedure on Nervous System64999 | 22 | $19 |
| Anesthesia for Total Hip Replacement01214 | 14 | $289 |
| Anesthesia for Open Or Endoscopic Total Shoulder Joint Replacement01638 | 13 | $325 |
Typical Medicare-allowed amounts for these services range $19–$325 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$24 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
Registry dates
- Enumerated
- 2006-03-27
- Last updated
- 2011-11-09
Frequently asked questions
- What is Mark Zimmerman's NPI number?
- Mark Zimmerman's National Provider Identifier (NPI) is 1124088570, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Zimmerman's specialty?
- Mark Zimmerman is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Zimmerman located?
- Mark Zimmerman's practice location on file with NPPES is 10101 S 27th St, Franklin, WI 53132-7209.
- What is Mark Zimmerman's phone number?
- The practice phone number listed in the NPPES registry for Mark Zimmerman is (414) 817-5800.
- Does Mark Zimmerman accept Medicare?
- Mark Zimmerman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Zimmerman's NPI active?
- Yes — Mark Zimmerman's NPI (1124088570) is active in the NPPES registry as of the last update on 2011-11-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.