Marshall Bales, M.D.
NPI 1467494211 · Forensic Psychiatry Physician · Winnebago, WI
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marshall Bales, M.D. is a Forensic Psychiatry Physician provider in Winnebago, WI (NPI 1467494211).
Provider details
- NPI number
- 1467494211
- Entity type
- Individual
- Primary specialty
- Forensic Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 31871 (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
20 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
148 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 148 | $118 |
Typical Medicare-allowed amounts for these services range $118–$118 (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 · 72 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Quetiapine Fumarate | 626 | 72 |
| Haloperidol | 394 | 46 |
| Lorazepam | 389 | 49 |
| Risperidone | 387 | 47 |
| Benztropine Mesylate | 379 | 42 |
| Olanzapine | 377 | 41 |
| Trazodone Hcl | 367 | 48 |
| Clozapine | 293 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-12
- Last updated
- 2017-04-07
Frequently asked questions
- What is Marshall Bales's NPI number?
- Marshall Bales's National Provider Identifier (NPI) is 1467494211, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marshall Bales's specialty?
- Marshall Bales is listed in the NPPES registry with a primary specialty of Forensic Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Marshall Bales located?
- Marshall Bales's practice location on file with NPPES is 1300 South Drive, Winnebago, WI 54985-0009.
- What is Marshall Bales's phone number?
- The practice phone number listed in the NPPES registry for Marshall Bales is (920) 235-4910.
- Does Marshall Bales accept Medicare?
- Marshall Bales is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marshall Bales's NPI active?
- Yes — Marshall Bales's NPI (1467494211) is active in the NPPES registry as of the last update on 2017-04-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.