Walter Hamilton, MSN;CRNA
NPI 1669412615 · Certified Registered Nurse Anesthetist · Adrian, MI
Enrolled with Medicare as Practitioner - Certified Registered Nurse Anesthetist (crna) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Walter Hamilton, MSN;CRNA is a Certified Registered Nurse Anesthetist provider in Adrian, MI (NPI 1669412615).
Provider details
- NPI number
- 1669412615
- Entity type
- Individual
- Primary specialty
- Certified Registered Nurse AnesthetistPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- MSN;CRNA
- Sex
- Male
- Sole proprietor
- Yes
- License
- 4704222557 (MI)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
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
279 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) |
|---|---|---|
| Anesthesia for Other Procedure on Large Bowel Using an Endoscope00811 | 84 | $98 |
| Anesthesia for Other Procedure on Esophagus, Stomach, Or Upper Small Bowel Using an Endoscope00731 | 72 | $105 |
| Anesthesia for Procedure on Small and Large Bowel Using an Endoscope00813 | 45 | $126 |
| Anesthesia for Exam of Colon Using an Endoscope00812 | 37 | $93 |
| Anesthesia for X-Ray Or Radiation Therapy01922 | 16 | $82 |
| Anesthesia for Lens Surgery00142 | 14 | $48 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$57 across 3 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
- 2006-06-07
- Last updated
- 2013-03-14
Frequently asked questions
- What is Walter Hamilton's NPI number?
- Walter Hamilton's National Provider Identifier (NPI) is 1669412615, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Walter Hamilton's specialty?
- Walter Hamilton is listed in the NPPES registry with a primary specialty of Certified Registered Nurse Anesthetist (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Walter Hamilton located?
- Walter Hamilton's practice location on file with NPPES is 818 Riverside Ave, Adrian, MI 49221-1446.
- What is Walter Hamilton's phone number?
- The practice phone number listed in the NPPES registry for Walter Hamilton is (517) 265-0900.
- Does Walter Hamilton accept Medicare?
- Walter Hamilton is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Walter Hamilton's NPI active?
- Yes — Walter Hamilton's NPI (1669412615) is active in the NPPES registry as of the last update on 2013-03-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.