Roger Grandgenett, D.D.S.
NPI 1659395580 · General Practice Dentistry · Blue Earth, MN
Enrolled with Medicare as Order and Referring Only - Dentist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Roger Grandgenett, D.D.S. is a General Practice Dentistry provider in Blue Earth, MN (NPI 1659395580).
Provider details
- NPI number
- 1659395580
- Entity type
- Individual
- Primary specialty
- General Practice DentistryDental Providers
- Credential
- D.D.S.
- Sex
- Male
- Sole proprietor
- No
- License
- D10869 (MN)
Specialties & taxonomies
Dental Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 · 6 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amoxicillin | 257 | 120 |
| Clindamycin Hcl | 54 | 23 |
| Azithromycin | 13 | — |
| Metformin Hcl | 12 | — |
| Pantoprazole Sodium | 12 | — |
| Memantine Hcl | 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 , 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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$480 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-26
- Last updated
- 2007-07-08
Frequently asked questions
- What is Roger Grandgenett's NPI number?
- Roger Grandgenett's National Provider Identifier (NPI) is 1659395580, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Roger Grandgenett's specialty?
- Roger Grandgenett is listed in the NPPES registry with a primary specialty of General Practice Dentistry (Dental Providers).
- Where is Roger Grandgenett located?
- Roger Grandgenett's practice location on file with NPPES is 621 E 7th St, Blue Earth, MN 56013-2516.
- What is Roger Grandgenett's phone number?
- The practice phone number listed in the NPPES registry for Roger Grandgenett is (507) 526-2170.
- Does Roger Grandgenett accept Medicare?
- Roger Grandgenett is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Roger Grandgenett's NPI active?
- Yes — Roger Grandgenett's NPI (1659395580) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.