Christopher Koenig, DO
NPI 1104205467 · Emergency Medicine Physician · Janesville, WI
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christopher Koenig, DO is a Emergency Medicine Physician provider in Janesville, WI (NPI 1104205467).
Provider details
- NPI number
- 1104205467
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 5101021598 (MI)
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
11 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
292 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) |
|---|---|---|
| Emergency Department Visit With Low Level of Medical Decision Making99283 | 110 | $68 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 96 | $114 |
| Emergency Department Visit With High Level of Medical Decision Making99285 | 72 | $167 |
| Critical Care, First 30-74 Minutes99291 | 14 | $203 |
Typical Medicare-allowed amounts for these services range $68–$203 (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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 45 | 44 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 37 | 35 |
| Cephalexin | 36 | 36 |
| Ondansetronbrand: Ondansetron Odt | 30 | 29 |
| Doxycycline Hyclate | 26 | 26 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 15 | 15 |
| Cyclobenzaprine Hcl |
Practice location
Mailing address
Additional practice locations (2)
- 1 Genesys PkwyGrand Blanc, MI 48439-8065Phone: (810) 606-5980
- N2950 State Road 67Lake Geneva, WI 53147-2655Phone: (262) 245-0535
Registry dates
- Enumerated
- 2015-05-20
- Last updated
- 2024-05-02
- Certified
- 2024-05-02
Frequently asked questions
- What is Christopher Koenig's NPI number?
- Christopher Koenig's National Provider Identifier (NPI) is 1104205467, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christopher Koenig's specialty?
- Christopher Koenig is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Christopher Koenig located?
- Christopher Koenig's practice location on file with NPPES is 1000 Mineral Point Ave, Janesville, WI 53548-2940.
- What is Christopher Koenig's phone number?
- The practice phone number listed in the NPPES registry for Christopher Koenig is (608) 756-6611.
- Does Christopher Koenig accept Medicare?
- Christopher Koenig is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christopher Koenig's NPI active?
- Yes — Christopher Koenig's NPI (1104205467) is active in the NPPES registry as of the last update on 2024-05-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.