John Nicklas, MD
NPI 1801972864 · Advanced Heart Failure and Transplant Cardiology Physician · Ann Arbor, MI
Enrolled with Medicare as Practitioner - Advanced Heart Failure and Transplant Cardiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Nicklas, MD is a Advanced Heart Failure and Transplant Cardiology Physician provider in Ann Arbor, MI (NPI 1801972864).
Provider details
- NPI number
- 1801972864
- Entity type
- Individual
- Primary specialty
- Advanced Heart Failure and Transplant Cardiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 4301044825 (MI)
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
19 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
383 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 167 | $119 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 86 | $145 |
| Critical Care, First 30-74 Minutes99291 | 63 | $216 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 25 | $167 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 15 | $114 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 44 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Torsemide | 181 | 58 |
| Spironolactone | 166 | 56 |
| Atorvastatin Calcium | 143 | 44 |
| Potassium Chloride | 134 | 53 |
| Metoprolol Succinate | 132 | 45 |
| Furosemide | 131 | 46 |
| Carvedilol | 127 | 35 |
| Apixaban |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-31
- Last updated
- 2026-01-28
- Certified
- 2026-01-28
Frequently asked questions
- What is John Nicklas's NPI number?
- John Nicklas's National Provider Identifier (NPI) is 1801972864, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Nicklas's specialty?
- John Nicklas is listed in the NPPES registry with a primary specialty of Advanced Heart Failure and Transplant Cardiology Physician (Allopathic & Osteopathic Physicians).
- Where is John Nicklas located?
- John Nicklas's practice location on file with NPPES is 1500 E Medical Center Dr, Ann Arbor, MI 48109-5000.
- What is John Nicklas's phone number?
- The practice phone number listed in the NPPES registry for John Nicklas is (734) 936-5000.
- Does John Nicklas accept Medicare?
- John Nicklas is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Nicklas's NPI active?
- Yes — John Nicklas's NPI (1801972864) is active in the NPPES registry as of the last update on 2026-01-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.