Gretchen Fischer, APRN-CNP
NPI 1558810705 · Family Nurse Practitioner · Mankato, MN
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gretchen Fischer, APRN-CNP is a Family Nurse Practitioner provider in Mankato, MN (NPI 1558810705).
Provider details
- NPI number
- 1558810705
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APRN-CNP
- Sex
- Female
- Sole proprietor
- No
- License
- 4846 (MN)
Specialties & taxonomies
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
9 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
12 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 12 | $75 |
Typical Medicare-allowed amounts for these services range $75–$75 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 14 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Quetiapine Fumarate | 48 | 11 |
| Furosemide | 29 | 11 |
| Levothyroxine Sodium | 25 | — |
| Sertraline Hcl | 23 | — |
| Bumetanide | 21 | — |
| Duloxetine Hcl | 20 | — |
| Gabapentin | 18 | — |
Practice location
Mailing address
Additional practice locations (1)
- 1230 E Main StMankato, MN 56001-5066Phone: (507) 625-1811
Registry dates
- Enumerated
- 2016-09-29
- Last updated
- 2020-10-05
- Certified
- 2020-10-05
Frequently asked questions
- What is Gretchen Fischer's NPI number?
- Gretchen Fischer's National Provider Identifier (NPI) is 1558810705, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gretchen Fischer's specialty?
- Gretchen Fischer is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Gretchen Fischer located?
- Gretchen Fischer's practice location on file with NPPES is 1025 Marsh St, Mankato, MN 56001-4752.
- What is Gretchen Fischer's phone number?
- The practice phone number listed in the NPPES registry for Gretchen Fischer is (507) 625-4031.
- Does Gretchen Fischer accept Medicare?
- Gretchen Fischer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gretchen Fischer's NPI active?
- Yes — Gretchen Fischer's NPI (1558810705) is active in the NPPES registry as of the last update on 2020-10-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.