Quick answers
- Does John R. Grandgenett accept Medicare assignment?
- Yes. Medicare's clinician data says John R. Grandgenett accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does John R. Grandgenett see?
- In 2024, CMS data shows 68 Original Medicare patients and 214 services for John R. Grandgenett. This counts Original Medicare only and measures volume, not quality.
- What is John R. Grandgenett's NPI number?
- 1174537849. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for John R. Grandgenett, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 68 |
|---|---|
| Services billed to Medicare | 214 |
| Different services or procedures | 23 |
| Participating Medicare provider | Yes |
| Average age of these patients | 66 |
Most frequent services
- Hemoglobin a1c level (83036)86 services
- Urine microalbumin (protein) level (82043)25 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)18 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Diabetes51%
- Arthritis25%
- Ischemic heart disease24%
- Heart failure22%
Hospitals where John R. Grandgenett works
Medicare's Facility Affiliation Data lists John R. Grandgenett at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Bryan Medical CenterLincoln, NE · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 280003
- CHI Health St. ElizabethLincoln, NE · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 280020
Practice locations
Addresses where John R. Grandgenett is enrolled with Medicare (CMS data updated October 2, 2026).
- 1021 N 27th StLincoln, NE 68503 (402) 476‑1455
- 3100 N 14th St, 201 Bluestem Health Kreshel ClinicLincoln, NE 68521 (402) 476‑1455
Group practices
Medicare enrollment lists John R. Grandgenett as a member of this group (CMS data updated October 2, 2026).
- Bluestem Health26 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Lincoln
Clinicians with the same Medicare primary specialty in Lincoln, NE — not a recommendation.
Other clinicians in Bluestem Health
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| School | Nebraska College Of Medicine |
|---|---|
| Graduation year | 1999 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1174537849 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians