Heidi Duff, PA-C
NPI 1588855381 · Medical Physician Assistant · Maryville, IL
Heidi Duff, PA-C is a Medical Physician Assistant provider in Maryville, IL (NPI 1588855381).
Provider details
- NPI number
- 1588855381
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
- License
- 085003013 (IL)
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
18 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
- 2007-08-06
- Last updated
- 2015-03-10
Frequently asked questions
- What is Heidi Duff's NPI number?
- Heidi Duff's National Provider Identifier (NPI) is 1588855381, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Heidi Duff's specialty?
- Heidi Duff is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Heidi Duff located?
- Heidi Duff's practice location on file with NPPES is 6800 State Route 162, Maryville, IL 62062-8500.
- What is Heidi Duff's phone number?
- The practice phone number listed in the NPPES registry for Heidi Duff is (314) 317-0600.
- Is Heidi Duff's NPI active?
- Yes — Heidi Duff's NPI (1588855381) is active in the NPPES registry as of the last update on 2015-03-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.