Karen Armbrust, M.D.
NPI 1124310735 · Ophthalmology Physician · Minneapolis, MN
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Armbrust, M.D. is a Ophthalmology Physician provider in Minneapolis, MN (NPI 1124310735).
Provider details
- NPI number
- 1124310735
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 59313 (MN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
15 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 · 4 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Prednisolone Acetate | 27 |
| Prednisone | 18 |
| Difluprednate | 15 |
| Brimonidine Tartrate | 11 |
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)
- 516 Delaware St SeMinneapolis, MN 55455-0356Phone: (612) 626-2452
Registry dates
- Enumerated
- 2011-05-15
- Last updated
- 2019-10-16
Frequently asked questions
- What is Karen Armbrust's NPI number?
- Karen Armbrust's National Provider Identifier (NPI) is 1124310735, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Armbrust's specialty?
- Karen Armbrust is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Karen Armbrust located?
- Karen Armbrust's practice location on file with NPPES is 1 Veterans Dr # 2e, Minneapolis, MN 55417-2309.
- What is Karen Armbrust's phone number?
- The practice phone number listed in the NPPES registry for Karen Armbrust is (612) 725-2000.
- Does Karen Armbrust accept Medicare?
- Karen Armbrust is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Armbrust's NPI active?
- Yes — Karen Armbrust's NPI (1124310735) is active in the NPPES registry as of the last update on 2019-10-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.