Grant Shumaker, MD
NPI 1841265139 · Neurological Surgery Physician · Dakota Dunes, SD
Enrolled with Medicare as Practitioner - Neurosurgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Grant Shumaker, MD is a Neurological Surgery Physician provider in Dakota Dunes, SD (NPI 1841265139).
Provider details
- NPI number
- 1841265139
- Entity type
- Individual
- Primary specialty
- Neurological Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 5770 (SD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
554 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 | 130 | $86 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 77 | $119 |
| X-Ray of Lower and Sacral Spine, 2-3 Views72100 | 68 | $35 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 47 | $105 |
| Fusion of Additional Segment of Spine22614 | 36 | $339 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 157 | 77 |
| Tramadol Hcl | 110 | 37 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 89 | 39 |
| Meloxicam | 70 | 16 |
| Gabapentin | 54 | 14 |
| Cyclobenzaprine Hcl | 42 | 15 |
| Levetiracetam | 13 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$284 across 2 records (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
- 2006-02-21
- Last updated
- 2010-08-06
Frequently asked questions
- What is Grant Shumaker's NPI number?
- Grant Shumaker's National Provider Identifier (NPI) is 1841265139, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Grant Shumaker's specialty?
- Grant Shumaker is listed in the NPPES registry with a primary specialty of Neurological Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Grant Shumaker located?
- Grant Shumaker's practice location on file with NPPES is 575 N Sioux Point Rd, Dakota Dunes, SD 57049-5312.
- What is Grant Shumaker's phone number?
- The practice phone number listed in the NPPES registry for Grant Shumaker is (605) 217-2667.
- Does Grant Shumaker accept Medicare?
- Grant Shumaker is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Grant Shumaker's NPI active?
- Yes — Grant Shumaker's NPI (1841265139) is active in the NPPES registry as of the last update on 2010-08-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.