Marc Gunderson, MD
NPI 1194067561 · Psychiatry Physician · Milwaukee, WI
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marc Gunderson, MD is a Psychiatry Physician provider in Milwaukee, WI (NPI 1194067561).
Provider details
- NPI number
- 1194067561
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 2017014153 (MO)
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 tenure25% of score
13 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
69 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 69 | $117 |
Typical Medicare-allowed amounts for these services range $117–$117 (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 · 34 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Bupropion Hclbrand: Bupropion Xl | 90 | 19 |
| Escitalopram Oxalate | 87 | 27 |
| Trazodone Hcl | 84 | 22 |
| Clonazepam | 83 | 16 |
| Quetiapine Fumarate | 64 | 14 |
| Mirtazapine | 63 | 17 |
| Buspirone Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$20 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
Additional practice locations (2)
- 1129 Macklind AveSaint Louis, MO 63110-1440Phone: (314) 534-0200
- W129n7055 Northfield DrMenomonee Falls, WI 53051-0538Phone: (262) 253-5400Fax: (262) 253-3399
Registry dates
- Enumerated
- 2013-03-22
- Last updated
- 2020-06-16
- Certified
- 2020-06-16
Frequently asked questions
- What is Marc Gunderson's NPI number?
- Marc Gunderson's National Provider Identifier (NPI) is 1194067561, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marc Gunderson's specialty?
- Marc Gunderson is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Marc Gunderson located?
- Marc Gunderson's practice location on file with NPPES is 1155 N Mayfair Rd, Milwaukee, WI 53226-3462.
- What is Marc Gunderson's phone number?
- The practice phone number listed in the NPPES registry for Marc Gunderson is (414) 955-5990.
- Does Marc Gunderson accept Medicare?
- Marc Gunderson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marc Gunderson's NPI active?
- Yes — Marc Gunderson's NPI (1194067561) is active in the NPPES registry as of the last update on 2020-06-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.