Mark Dillman, APNP, CNP
NPI 1851081921 · Nurse Practitioner · La Crosse, WI
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Dillman, APNP, CNP is a Nurse Practitioner provider in La Crosse, WI (NPI 1851081921).
Provider details
- NPI number
- 1851081921
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APNP, CNP
- Sex
- Male
- Sole proprietor
- No
- License
- 223971-30 (WI)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
3 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
778 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 | 418 | $77 |
| 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 | 215 | $13 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 51 | $78 |
| 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 | 47 | $13 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 24 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metoprolol Succinate | 155 | 57 |
| Sacubitril/Valsartanbrand: Entresto | 132 | 33 |
| Furosemide | 96 | 39 |
| Empagliflozinbrand: Jardiance | 94 | 31 |
| Spironolactone | 89 | 30 |
| Apixabanbrand: Eliquis | 84 | 26 |
| Atorvastatin Calcium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2023-05-11
- Last updated
- 2023-10-30
- Certified
- 2023-10-30
Frequently asked questions
- What is Mark Dillman's NPI number?
- Mark Dillman's National Provider Identifier (NPI) is 1851081921, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Dillman's specialty?
- Mark Dillman is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mark Dillman located?
- Mark Dillman's practice location on file with NPPES is 800 West Ave S, La Crosse, WI 54601-8806.
- What is Mark Dillman's phone number?
- The practice phone number listed in the NPPES registry for Mark Dillman is (608) 392-7390.
- Does Mark Dillman accept Medicare?
- Mark Dillman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Dillman's NPI active?
- Yes — Mark Dillman's NPI (1851081921) is active in the NPPES registry as of the last update on 2023-10-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.