Gregrey Hiltgen, MD
NPI 1437266053 · Family Medicine Physician · Wautoma, WI
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregrey Hiltgen, MD is a Family Medicine Physician provider in Wautoma, WI (NPI 1437266053).
Provider details
- NPI number
- 1437266053
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 37445 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,836 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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 1,076 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 267 | $119 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 119 | $85 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 111 | $119 |
| Blood Test, Clotting Time85610 | 67 | $4 |
| Anticoagulant Management of Patient Taking Warfarin93793 | 67 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 149 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 372 | 109 |
| Atorvastatin Calcium | 367 | 96 |
| Lisinopril | 294 | 85 |
| Amlodipine Besylate | 277 | 75 |
| Levothyroxine Sodium | 272 | 63 |
| Losartan Potassium | 256 | 72 |
| Gabapentin |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-23
- Last updated
- 2025-03-17
- Certified
- 2025-03-17
Frequently asked questions
- What is Gregrey Hiltgen's NPI number?
- Gregrey Hiltgen's National Provider Identifier (NPI) is 1437266053, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregrey Hiltgen's specialty?
- Gregrey Hiltgen is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Gregrey Hiltgen located?
- Gregrey Hiltgen's practice location on file with NPPES is 900 E Division St, Wautoma, WI 54982-6944.
- What is Gregrey Hiltgen's phone number?
- The practice phone number listed in the NPPES registry for Gregrey Hiltgen is (920) 787-6900.
- Does Gregrey Hiltgen accept Medicare?
- Gregrey Hiltgen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregrey Hiltgen's NPI active?
- Yes — Gregrey Hiltgen's NPI (1437266053) is active in the NPPES registry as of the last update on 2025-03-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.