James Rosser, MD
NPI 1851373807 · Surgery Physician · Lancaster, WI
Enrolled with Medicare as Practitioner - General Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Rosser, MD is a Surgery Physician provider in Lancaster, WI (NPI 1851373807).
Provider details
- NPI number
- 1851373807
- Entity type
- Individual
- Primary specialty
- Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 060498 (GA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
306 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 145 | $84 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 82 | $120 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 79 | $157 |
Typical Medicare-allowed amounts for these services range $84–$157 (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 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 316 | 99 |
| Sucralfate | 278 | 86 |
| Famotidine | 82 | 36 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Peg-3350 and Electrolytes | 53 | 51 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G | 50 | 48 |
| Pantoprazole Sodium | 16 | — |
| Ursodiol | 15 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-11-16
- Last updated
- 2017-03-07
Frequently asked questions
- What is James Rosser's NPI number?
- James Rosser's National Provider Identifier (NPI) is 1851373807, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Rosser's specialty?
- James Rosser is listed in the NPPES registry with a primary specialty of Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is James Rosser located?
- James Rosser's practice location on file with NPPES is 507 S Monroe St, Lancaster, WI 53813-2054.
- What is James Rosser's phone number?
- The practice phone number listed in the NPPES registry for James Rosser is (608) 723-2131.
- Does James Rosser accept Medicare?
- James Rosser is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James Rosser's NPI active?
- Yes — James Rosser's NPI (1851373807) is active in the NPPES registry as of the last update on 2017-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.