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ALEXANDER LEGENBAUER DO
NPI 1841827847
Psychiatry & Neurology - Psychiatry in Harrisburg, IL

Active since March 27, 2020PECOS EnrolledAccepts Medicare Assignment
100 DR WARREN TUTTLE DR, HARRISBURG, IL 62946(618) 252-0999(618) 252-2032 Get Directions Write a Review

NPPES record last updated: June 10, 2025. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Jun 10, 2025, Sep 5, 2024, Aug 6, 2024 and 3 more (6 updates tracked since 2020).

About Alexander Legenbauer Do NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ALEXANDER LEGENBAUER DO (NPI 1841827847) is an individual psychiatry provider in Harrisburg, Illinois, licensed in Illinois (036170886) and active in the NPI registry since March 2020. He is enrolled in Medicare PECOS, is affiliated with Herrin Hospital, and maintains 7 additional practice locations.

NPPES Registry Identity

NPI1841827847
Entity TypeIndividualMale
Primary Taxonomy2084P0800X
Provider Legal NameALEXANDER LEGENBAUERCredential: DO
Location Address100 DR WARREN TUTTLE DRHarrisburg, IL 62946-2718
Mailing AddressPo Box 3988Carbondale, IL 62902-3988 · (618) 457-5200
Phone(618) 252-0999
Fax(618) 252-2032
Sole ProprietorNo
Medical School CMSOtherGraduated 2020
Enumeration DateMarch 27, 2020
Last NPPES UpdateJune 10, 20256 updates tracked since enumeration
NPPES CertifiedJune 10, 2025
✔ NPI 1841827847 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
Licenses✔ Licensed in IL · 036170886✔ Licensed in FL · UO7009
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
100 DR WARREN TUTTLE DR, Harrisburg, IL 62946
Open in Google Maps ↗

Secondary Practice Locations 7

Location 11147 NW 64th TerGainesville, FL 32605-4218 · Phone (352) 333-5982
Location 2201 S 14th StHerrin, IL 62948-3631 · Phone (618) 998-0888 · Fax (618) 993-1808
Location 32 S Hospital DrMurphysboro, IL 62966-3333 · Phone (618) 998-0888 · Fax (618) 993-1808
Location 42601 W Main StCarbondale, IL 62901-1031 · Phone (618) 549-5361 · Fax (618) 351-4878
Location 5405 W Jackson StCarbondale, IL 62901-1467 · Phone (618) 998-0888 · Fax (618) 993-1808
Location 61007 US Highway 45 NEldorado, IL 62930-3767 · Phone (618) 273-7723 · Fax (618) 351-4834
Location 73106 Outer DrMarion, IL 62959-5270 · Phone (618) 997-4332 · Fax (618) 351-4807

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, Oscar Health.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Alexander Legenbauer Do is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9830637156
PECOS Enrollment IDI20240819001423
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Alexander Legenbauer reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Harrisburg Medical Center Inc
Same address
General Acute Care Hospital
100 DR WARREN TUTTLE DRIVE
Harrisburg, IL 62946
  • Reassigned Medicare billing, Illinois enrollment
  • 44 clinicians in this Medicare group
NPI 1396878658 (618) 253-7671
Southern Illinois Medical Services, Nfp
34 mi
Internal Medicine
1239 E MAIN ST
Carbondale, IL 62901
  • Reassigned Medicare billing, Illinois enrollment
  • 702 clinicians in this Medicare group
NPI 1770656837 (618) 457-5200

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
14 services11 patients

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Herrin Hospital

Acute Care Hospitals · Herrin, IL
1/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140011
Location201 S 14th StHerrin, IL 62948 · Williamson County
Emergency services

Memorial Hospital Of Carbondale

Acute Care Hospitals · Carbondale, IL
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140164
Location405 W JacksonCarbondale, IL 62901 · Jackson County
Emergency services Birthing friendly

Harrisburg Medical Center

Acute Care Hospitals · Harrisburg, IL
3/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number140210
Location100 Doctor Warren Tuttle DrHarrisburg, IL 62946 · Saline County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 62946 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$168.44 typical visit price
range $54.80 – $168.44
Typical copayment $42.11 (range $13.70 – $42.11)
Most-billed visit code 99205
Established Patient
$68.64 typical visit price
range $17.16 – $136.56
Typical copayment $17.16 (range $4.29 – $34.14)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 17

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

STATERA HEALTH CARE, LLC
Emergency Medicine
100 DR WARREN TUTTLE DR
HARRISBURG, IL 62946
Saline County (618) 833-1691
THOMAS BUCINSKI MD
Emergency Medicine
100 DR WARREN TUTTLE DR
HARRISBURG, IL 62946
Saline County (618) 253-7671
HARRISBURG MEDICAL CENTER INC
General Acute Care Hospital
100 DR WARREN TUTTLE DR
HARRISBURG, IL 62946
Saline County (618) 253-7671
HARRISBURG MEDICAL CENTER INC
Psychiatric Unit
100 DR WARREN TUTTLE DR
HARRISBURG, IL 62946
Saline County (618) 253-7671
ALEXIS MARIE JUAREZ LCSW
Social Worker (Clinical)
100 DR WARREN TUTTLE DR
HARRISBURG, IL 62946
Saline County (618) 252-0999
HARRISBURG MEDICAL CENTER INC
Medicare Defined Swing Bed Unit
100 DR WARREN TUTTLE DR
HARRISBURG, IL 62946
Saline County (618) 253-7671
ASHLEY HERRMANN
Occupational Therapist
100 DR WARREN TUTTLE DR
HARRISBURG, IL 62946
Saline County (618) 253-7671
TIMOTHY E MORTHLAND M.D.
Family Medicine
100 DR WARREN TUTTLE DR
HARRISBURG, IL 62946
Saline County (618) 253-7671

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Alexander Legenbauer's NPI number?

The NPI number for Alexander Legenbauer is 1841827847. It was assigned to this individual provider in the NPPES registry on March 27, 2020.

Where is Alexander Legenbauer located?

Alexander Legenbauer practices at 100 Dr Warren Tuttle Dr, Harrisburg, IL 62946. The listed phone number is (618) 252-0999.

What is Alexander Legenbauer's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is Alexander Legenbauer enrolled in Medicare?

Yes. Alexander Legenbauer is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Alexander Legenbauer's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Alexander Legenbauer reassigns Medicare benefits to 2 organizations: Harrisburg Medical Center Inc (Harrisburg, IL) and Southern Illinois Medical Services, Nfp (Carbondale, IL). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Alexander Legenbauer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Alexander Legenbauer accept?

Health plans from Ambetter Health and Oscar Health list Alexander Legenbauer as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Alexander Legenbauer affiliated with any hospitals?

According to CMS data, Alexander Legenbauer is affiliated with Herrin Hospital, Memorial Hospital Of Carbondale and Harrisburg Medical Center.

When was this NPI record last updated?

The NPPES record for Alexander Legenbauer was last updated on June 10, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.