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Haydan Fahrenholtz
NPI 1578434106 · Internal Medicine Physician · Highland, IL
Haydan Fahrenholtz is a Internal Medicine Physician provider in Highland, IL (NPI 1578434106).
Provider details
- NPI number
- 1578434106
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- No
- License
- 2025032560 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Established profile(54/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
1 yr 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
201 Field Crossing Dr
Highland, IL 62249-3957
Phone: (618) 731-1354
Street-level locationGet directions
Mailing address
201 Field Crossing Dr Unit 7
Highland, IL 62249-3958
Registry dates
- Enumerated
- 2025-09-16
- Last updated
- 2025-09-16
- Certified
- 2025-09-16
Frequently asked questions
- What is Haydan Fahrenholtz's NPI number?
- Haydan Fahrenholtz's National Provider Identifier (NPI) is 1578434106, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Haydan Fahrenholtz's specialty?
- Haydan Fahrenholtz is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Haydan Fahrenholtz located?
- Haydan Fahrenholtz's practice location on file with NPPES is 201 Field Crossing Dr, Highland, IL 62249-3957.
- What is Haydan Fahrenholtz's phone number?
- The practice phone number listed in the NPPES registry for Haydan Fahrenholtz is (618) 731-1354.
- Is Haydan Fahrenholtz's NPI active?
- Yes — Haydan Fahrenholtz's NPI (1578434106) is active in the NPPES registry as of the last update on 2025-09-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.