Henry Hagenstein, D.O.
NPI 1346328226 · Specialist · Grand Blanc, MI
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Henry Hagenstein, D.O. is a Specialist provider in Grand Blanc, MI (NPI 1346328226).
Provider details
- NPI number
- 1346328226
- Entity type
- Individual
- Primary specialty
- SpecialistOther Service Providers
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- Yes
- License
- HH007300 (MI)
Specialties & taxonomies
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 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
600 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) |
|---|---|---|
| Needle Measurement of Electrical Activity in Arm Or Leg Muscles, Complete Study95886 | 131 | $88 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 130 | $86 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 91 | $159 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 55 | $122 |
| Nerve Conduction, 11-12 Studies95912 | 45 | $230 |
| Assessment of and Care Planning for Patient With Impaired Thought Processing, Typically 60 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 76 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levetiracetam | 229 | 50 |
| Carbidopa/Levodopabrand: Carbidopa-Levodopa | 192 | 61 |
| Brivaracetambrand: Briviact | 114 | 16 |
| Lamotrigine | 110 | 33 |
| Lacosamide | 106 | 16 |
| Carbidopa/Levodopabrand: Rytary | 103 | 21 |
| Clonazepam | 94 | 17 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,551 across 89 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
- 2006-11-01
- Last updated
- 2010-03-23
Frequently asked questions
- What is Henry Hagenstein's NPI number?
- Henry Hagenstein's National Provider Identifier (NPI) is 1346328226, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Henry Hagenstein's specialty?
- Henry Hagenstein is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).
- Where is Henry Hagenstein located?
- Henry Hagenstein's practice location on file with NPPES is 3635 Genesys Pkwy, Grand Blanc, MI 48439-8067.
- What is Henry Hagenstein's phone number?
- The practice phone number listed in the NPPES registry for Henry Hagenstein is (810) 606-0682.
- Does Henry Hagenstein accept Medicare?
- Henry Hagenstein is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Henry Hagenstein's NPI active?
- Yes — Henry Hagenstein's NPI (1346328226) is active in the NPPES registry as of the last update on 2010-03-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.