Karl Lopata, NP
NPI 1659764793 · Nurse Practitioner · Ann Arbor, MI
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karl Lopata, NP is a Nurse Practitioner provider in Ann Arbor, MI (NPI 1659764793).
Provider details
- NPI number
- 1659764793
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Male
- Sole proprietor
- No
- License
- 4704275104 (MI)
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 tenure38% of score
11 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 1 distinct drug on file.
| Drug | Part D claims (2024) |
|---|---|
| Torsemide | 12 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (1)
- 1500 East Medical Center DriveFloor 3 Cardiovascular CenterAnn Arbor, MI 48109-5856Phone: (888) 287-1082
Registry dates
- Enumerated
- 2015-03-13
- Last updated
- 2025-12-10
- Certified
- 2025-12-10
Frequently asked questions
- What is Karl Lopata's NPI number?
- Karl Lopata's National Provider Identifier (NPI) is 1659764793, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karl Lopata's specialty?
- Karl Lopata is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Karl Lopata located?
- Karl Lopata's practice location on file with NPPES is 1500 E Medical Center Dr, Ann Arbor, MI 48109-5000.
- What is Karl Lopata's phone number?
- The practice phone number listed in the NPPES registry for Karl Lopata is (734) 936-4000.
- Does Karl Lopata accept Medicare?
- Karl Lopata is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karl Lopata's NPI active?
- Yes — Karl Lopata's NPI (1659764793) is active in the NPPES registry as of the last update on 2025-12-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.