William Humphrey, MD
NPI 1164912218 · Family Medicine Physician · Zeeland, MI
Enrolled with Medicare as Order and Referring Only - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Humphrey, MD is a Family Medicine Physician provider in Zeeland, MI (NPI 1164912218).
Provider details
- NPI number
- 1164912218
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 4301503091 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
8 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$36 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
- 2018-05-15
- Last updated
- 2023-07-05
- Certified
- 2023-07-05
Frequently asked questions
- What is William Humphrey's NPI number?
- William Humphrey's National Provider Identifier (NPI) is 1164912218, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Humphrey's specialty?
- William Humphrey is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Humphrey located?
- William Humphrey's practice location on file with NPPES is 400 S State St Ste 250, Zeeland, MI 49464-2092.
- What is William Humphrey's phone number?
- The practice phone number listed in the NPPES registry for William Humphrey is (616) 741-2364.
- Does William Humphrey accept Medicare?
- William Humphrey is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Humphrey's NPI active?
- Yes — William Humphrey's NPI (1164912218) is active in the NPPES registry as of the last update on 2023-07-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.