Gregory Haselhuhn, M.D.
NPI 1538145560 · Specialist · Toledo, OH
Enrolled with Medicare as Practitioner - Urology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Haselhuhn, M.D. is a Specialist provider in Toledo, OH (NPI 1538145560).
Provider details
- NPI number
- 1538145560
- Entity type
- Individual
- Primary specialty
- SpecialistOther Service Providers
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 35068258 (OH)
Specialties & taxonomies
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 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
2,491 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 788 | $120 |
| Automated Urinalysis Test81003 | 687 | $2 |
| Ultrasound Measurement of Bladder Capacity After Voiding51798 | 253 | $10 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 138 | $157 |
| Diagnostic Exam of Bladder and Urethra Using an Endoscope52000 | 107 | $207 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 32 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Alfuzosin Hclbrand: Alfuzosin Hcl Er | 683 | 199 |
| Tamsulosin Hcl | 555 | 177 |
| Finasteride | 519 | 155 |
| Solifenacin Succinate | 369 | 80 |
| Nitrofurantoin Monohyd/M-Crystbrand: Nitrofurantoin Mono-Macro | 264 | 116 |
| Cephalexin | 219 | 175 |
| Oxybutynin Chloridebrand: Oxybutynin Chloride Er | 216 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-12-21
- Last updated
- 2022-01-05
- Certified
- 2022-01-05
Frequently asked questions
- What is Gregory Haselhuhn's NPI number?
- Gregory Haselhuhn's National Provider Identifier (NPI) is 1538145560, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Haselhuhn's specialty?
- Gregory Haselhuhn is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).
- Where is Gregory Haselhuhn located?
- Gregory Haselhuhn's practice location on file with NPPES is 2000 Regency Ct, Toledo, OH 43623-3090.
- What is Gregory Haselhuhn's phone number?
- The practice phone number listed in the NPPES registry for Gregory Haselhuhn is (419) 725-1900.
- Does Gregory Haselhuhn accept Medicare?
- Gregory Haselhuhn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Haselhuhn's NPI active?
- Yes — Gregory Haselhuhn's NPI (1538145560) is active in the NPPES registry as of the last update on 2022-01-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.