Deborah Posthumus, P.A.
NPI 1255339479 · Physician Assistant · Muskegon, MI
Deborah Posthumus, P.A. is a Physician Assistant provider in Muskegon, MI (NPI 1255339479).
Provider details
- NPI number
- 1255339479
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- P.A.
- Sex
- Female
- Sole proprietor
- No
- License
- 5601002123 (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 tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-07-12
- Last updated
- 2012-02-13
Frequently asked questions
- What is Deborah Posthumus's NPI number?
- Deborah Posthumus's National Provider Identifier (NPI) is 1255339479, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Deborah Posthumus's specialty?
- Deborah Posthumus is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Deborah Posthumus located?
- Deborah Posthumus's practice location on file with NPPES is 6207 Harvey St, Muskegon, MI 49444-7861.
- What is Deborah Posthumus's phone number?
- The practice phone number listed in the NPPES registry for Deborah Posthumus is (231) 799-2515.
- Is Deborah Posthumus's NPI active?
- Yes — Deborah Posthumus's NPI (1255339479) is active in the NPPES registry as of the last update on 2012-02-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.