Christopher Adler, MD
NPI 1891217741 · Internal Medicine Physician · Marshfield, WI
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christopher Adler, MD is a Internal Medicine Physician provider in Marshfield, WI (NPI 1891217741).
Provider details
- NPI number
- 1891217741
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
8 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
522 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 | 183 | $91 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 52 | $110 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 51 | $122 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 50 | $134 |
| 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 | 49 | $15 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 109 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 817 | 255 |
| Lisinopril | 487 | 151 |
| Amlodipine Besylate | 441 | 130 |
| Metoprolol Succinate | 342 | 109 |
| Omeprazole | 335 | 102 |
| Losartan Potassium | 291 | 93 |
| Levothyroxine Sodium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2017-07-12
- Last updated
- 2021-09-23
- Certified
- 2021-09-23
Frequently asked questions
- What is Christopher Adler's NPI number?
- Christopher Adler's National Provider Identifier (NPI) is 1891217741, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christopher Adler's specialty?
- Christopher Adler is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Christopher Adler located?
- Christopher Adler's practice location on file with NPPES is 1000 N Oak Ave, Marshfield, WI 54449-5703.
- What is Christopher Adler's phone number?
- The practice phone number listed in the NPPES registry for Christopher Adler is (800) 782-8581.
- Does Christopher Adler accept Medicare?
- Christopher Adler is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christopher Adler's NPI active?
- Yes — Christopher Adler's NPI (1891217741) is active in the NPPES registry as of the last update on 2021-09-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.