Allen Foster, MD
NPI 1043261399 · Sleep Medicine (Internal Medicine) Physician · La Crosse, WI
Enrolled with Medicare as Practitioner - Sleep Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Allen Foster, MD is a Sleep Medicine (Internal Medicine) Physician provider in La Crosse, WI (NPI 1043261399).
Provider details
- NPI number
- 1043261399
- Entity type
- Individual
- Primary specialty
- Sleep Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 38156-020 (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
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
718 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) |
|---|---|---|
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 202 | $15 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 134 | $60 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 88 | $78 |
| Sleep Study Including Heart Rate, Breathing, and Sleep Time95800 | 81 | $36 |
| Sleep Study in Sleep Lab (6 Years Or Older)95810 | 40 | $110 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 97 | 39 |
| Clonazepam | 23 | — |
| Armodafinil | 19 | — |
| Pramipexole Di-Hclbrand: Pramipexole Dihydrochloride | 19 | — |
| Ropinirole Hcl | 19 | 12 |
| Modafinil | 16 | — |
| Methylphenidate Hcl | 12 | — |
Practice location
Mailing address
Additional practice locations (1)
- 430 E Division StFond Du Lac, WI 54935-4560Phone: (715) 235-5531Fax: (715) 233-7645
Registry dates
- Enumerated
- 2006-05-12
- Last updated
- 2024-04-18
- Certified
- 2024-04-18
Frequently asked questions
- What is Allen Foster's NPI number?
- Allen Foster's National Provider Identifier (NPI) is 1043261399, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Allen Foster's specialty?
- Allen Foster is listed in the NPPES registry with a primary specialty of Sleep Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Allen Foster located?
- Allen Foster's practice location on file with NPPES is 1836 South Ave, La Crosse, WI 54601-5429.
- What is Allen Foster's phone number?
- The practice phone number listed in the NPPES registry for Allen Foster is (608) 782-7300.
- Does Allen Foster accept Medicare?
- Allen Foster is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Allen Foster's NPI active?
- Yes — Allen Foster's NPI (1043261399) is active in the NPPES registry as of the last update on 2024-04-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.