William Hartmann, DPT
NPI 1912344417 · Orthopedic Physical Therapist · Appleton, WI
Enrolled with Medicare as Practitioner - Physical Therapist in Private Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Hartmann, DPT is a Orthopedic Physical Therapist provider in Appleton, WI (NPI 1912344417).
Provider details
- NPI number
- 1912344417
- Entity type
- Individual
- Primary specialty
- Orthopedic Physical TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Credential
- DPT
- Sex
- Male
- Sole proprietor
- Yes
- License
- 12339-24 (WI)
Specialties & taxonomies
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
13 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
4 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
158 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) |
|---|---|---|
| Therapy Procedure Using Manual Technique, Each 15 Minutes97140 | 59 | $20 |
| Therapy Procedure Using Functional Activities97530 | 59 | $33 |
| Therapy Procedure Using Exercise to Develop Strength, Endurance, Range of Motion, and Flexibility, Each 15 Minutes97110 | 40 | $22 |
Typical Medicare-allowed amounts for these services range $20–$33 (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.
Practice location
Mailing address
Additional practice locations (3)
- 218 E Lawrence StAppleton, WI 54911-5724Phone: (920) 991-2561
- 1100 E South River StAppleton, WI 54915-2222Phone: (920) 991-2561
- 225 W Kennedy AveKimberly, WI 54136-2836Phone: (920) 991-2561
Registry dates
- Enumerated
- 2013-05-24
- Last updated
- 2025-07-11
- Certified
- 2025-07-11
Frequently asked questions
- What is William Hartmann's NPI number?
- William Hartmann's National Provider Identifier (NPI) is 1912344417, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Hartmann's specialty?
- William Hartmann is listed in the NPPES registry with a primary specialty of Orthopedic Physical Therapist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is William Hartmann located?
- William Hartmann's practice location on file with NPPES is W3124 Van Roy Rd, Appleton, WI 54915-3929.
- What is William Hartmann's phone number?
- The practice phone number listed in the NPPES registry for William Hartmann is (920) 968-1010.
- Does William Hartmann accept Medicare?
- William Hartmann is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Hartmann's NPI active?
- Yes — William Hartmann's NPI (1912344417) is active in the NPPES registry as of the last update on 2025-07-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.