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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. CYNTHIA K GRONAU MD
NPI 1124094842
Family Medicine in Redwood Falls, MN

Active since February 23, 2006PECOS Enrolled
1100 E BROADWAY, REDWOOD FALLS, MN 56283(507) 637-2985(507) 637-6678 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. Cynthia K Gronau Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. CYNTHIA K GRONAU MD (NPI 1124094842) is an individual family medicine provider in Redwood Falls, Minnesota, licensed in Minnesota (43905) and active in the NPI registry since February 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1124094842
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameDR. CYNTHIA K GRONAUCredential: MD
Location Address1100 E BROADWAYRedwood Falls, MN 56283
Mailing Address1100 E BroadwayRedwood Falls, MN 56283 · (507) 637-2985 · Fax (507) 637-6678
Phone(507) 637-2985
Fax(507) 637-6678
Sole ProprietorNo
Enumeration DateFebruary 23, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1124094842 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in MN · 43905
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
1100 E BROADWAY, Redwood Falls, MN 56283
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include HealthPartners, Medica, Sanford Health Plan.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Cynthia K Gronau Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
32 services21 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 56283 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$85.82 typical visit price
range $56.00 – $168.28
Typical copayment $21.45 (range $14.00 – $42.07)
Most-billed visit code 99203
Established Patient
$98.61 typical visit price
range $18.32 – $138.04
Typical copayment $24.65 (range $4.58 – $34.51)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 10

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Tubing with integrated heating element for use with positive airway pressure device A4604
DME-Other DME · category DE001N
2 suppliers12 claims12 services$42.18 avg. paid by Medicare
Full face mask used with positive airway pressure device, each A7030
DME-Other DME · category DE001N
2 suppliers11 claims11 services$111.49 avg. paid by Medicare
Face mask interface, replacement for full face mask, each A7031
DME-Other DME · category DE001N
2 suppliers14 claims24 services$42.76 avg. paid by Medicare
Filter, disposable, used with positive airway pressure device A7038
DME-Other DME · category DE001N
3 suppliers21 claims82 services$2.73 avg. paid by Medicare
Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431
DME-Oxygen and Supplies · category DC000N
1 supplier12 claims12 services$19.50 avg. paid by Medicare
Continuous positive airway pressure (cpap) device E0601
DME-Other DME · category DE001N
1 supplier27 claims27 services$43.46 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. SCOTT T HAGEN OD
Optometrist
1100 E BROADWAY
REDWOOD FALLS, MN 56283
Redwood County (507) 637-2985

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Cynthia Gronau's NPI number?

The NPI number for Cynthia Gronau is 1124094842. It was assigned to this individual provider in the NPPES registry on February 23, 2006.

Where is Cynthia Gronau located?

Cynthia Gronau practices at 1100 E Broadway, Redwood Falls, MN 56283. The listed phone number is (507) 637-2985.

What is Cynthia Gronau's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Cynthia Gronau enrolled in Medicare?

Yes. Cynthia Gronau is registered in the Medicare PECOS enrollment system.

What insurance does Cynthia Gronau accept?

Health plans from HealthPartners, Medica and Sanford Health Plan list Cynthia Gronau as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Cynthia Gronau was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 36 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.