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ROULA AL-DAHHAK M.D.
NPI 1033116165
Psychiatry & Neurology - Neurology in O Fallon, IL

Active since July 05, 2005PECOS EnrolledAccepts Medicare Assignment
3 SAINT ELIZABETH BLVD STE 5000, O FALLON, IL 62269(618) 641-5803(618) 607-5116 Get Directions Write a Review

NPPES record last updated: September 29, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 9, 2025, Apr 17, 2024 (2 updates tracked since 2024).

About Roula Al-dahhak M.d. NPPES

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

ROULA AL-DAHHAK M.D. (NPI 1033116165) is an individual neurology provider in O Fallon, Illinois, licensed in Illinois (036176244) and active in the NPI registry since July 2005. She is enrolled in Medicare PECOS, is affiliated with Hshs Holy Family Hospital Inc, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1033116165
Entity TypeIndividualFemale
Primary Taxonomy2084N0400X
Provider Legal NameROULA AL-DAHHAKCredential: M.D.
Location Address3 SAINT ELIZABETH BLVD STE 5000O Fallon, IL 62269-1282
Mailing Address3 Saint Elizabeth Blvd Ste 5000O Fallon, IL 62269-1282 · (618) 641-5803 · Fax (618) 607-5116
Phone(618) 641-5803
Fax(618) 607-5116
Sole ProprietorNo
Medical School CMSOtherGraduated 1993
Enumeration DateJuly 5, 2005
Last NPPES UpdateSeptember 29, 20252 updates tracked since enumeration
NPPES CertifiedSeptember 29, 2025
✔ NPI 1033116165 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPsychiatry & Neurology · NeurologyAllopathic & Osteopathic Physicians
Taxonomy Code2084N0400X
Licenses✔ Licensed in IL · 036176244✔ Licensed in OH · 35082826✔ Licensed in MO · 2010011111
Definition
A Neurologist specializes in the diagnosis and treatment of diseases or impaired function of the brain, spinal cord, peripheral nerves, muscles, autonomic nervous system, and blood vessels that relate to these structures.
Also ListedPsychiatry & Neurology · Clinical NeurophysiologyTaxonomy 2084N0600X · License 35082826 (OH)
3 SAINT ELIZABETH BLVD STE 5000, O Fallon, IL 62269
Open in Google Maps ↗

Secondary Practice Locations 2

Location 170 Jungermann Cir Ste 300Saint Peters, MO 63376-1637 · Phone (636) 916-7060
Location 2915 N Grand Blvd # A-139Saint Louis, MO 63106-1621 · Phone (314) 652-4100 ext. 54722

Other Identifiers 1

Medicaid2537919OH

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan, Ambetter Health and more.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

Roula Al-dahhak M.d. 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 ID5698720811
PECOS Enrollment IDI20100929001037, I20250909004016
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

3

Medicare enrollment records show Roula Al-dahhak reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Fairview Heights Medical Group Sc
31 mi
Multi-Specialty
670 MASON RIDGE CENTER DR STE 300
Saint Louis, MO 63141
  • Reassigned Medicare billing, Missouri enrollment
  • 140 clinicians in this Medicare group
NPI 1679503668 (314) 996-7644
Sjl Health Systems Inc
71 mi
Skilled Nursing Facility
900 S CHESTNUT ST
Pana, IL 62557
  • Reassigned Medicare billing, Illinois enrollment
  • Medicare enrollment name: Hshs Medical Group Inc
  • 317 clinicians in this Medicare group
NPI 1215037353 (217) 562-3996
Southeast Missouri Hospital Physicians, LLC
89 mi
Family Medicine
1701 LACEY ST
Cape Girardeau, MO 63701
  • Reassigned Medicare billing, Missouri enrollment
  • 470 clinicians in this Medicare group
NPI 1558311522 (573) 331-6880

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 2

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.

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
48 services46 patients
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.
19 services17 patients

Hospital Affiliations CMS Care Compare 5

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

Hshs Holy Family Hospital Inc

Acute Care Hospitals · Greenville, IL
OwnershipVoluntary non-profit - Church
CMS Certification Number140137
Location200 Health Care DrGreenville, IL 62246 · Bond County
Emergency services

St Josephs Hospital

Acute Care Hospitals · Breese, IL
OwnershipVoluntary non-profit - Church
CMS Certification Number140145
Location9515 Holy Cross LnBreese, IL 62230 · Clinton County
Emergency services Birthing friendly

Hshs St Elizabeth's Hospital

Acute Care Hospitals · O Fallon, IL
4/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number140187
LocationOne St Elizabeth BoulevardO Fallon, IL 62269 · St. Clair County
Emergency services Birthing friendly

Barnes-Jewish St Peters Hospital

Acute Care Hospitals · Saint Peters, MO
5/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number260191
Location10 Hospital DrSaint Peters, MO 63376 · St. Charles County
Emergency services

Progress West Hospital

Acute Care Hospitals · O Fallon, MO
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260219
Location2 Progress Point PkwyO Fallon, MO 63368 · St. Charles County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 62269 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
$131.14 typical visit price
range $56.28 – $173.35
Typical copayment $32.78 (range $14.07 – $43.33)
Most-billed visit code 99204
Established Patient
$99.71 typical visit price
range $17.51 – $139.99
Typical copayment $24.92 (range $4.37 – $34.99)
Most-billed visit code 99214
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 12

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

MS. ANGELA N CROESSMAN-MARSHALL AGNP-C
Nurse Practitioner (Adult Health)
3 SAINT ELIZABETH BLVD STE 5000
O FALLON, IL 62269
St. Clair County (618) 641-5803
CHRISTI L TEUFEL DNP-FNP
Nurse Practitioner
3 SAINT ELIZABETH BLVD STE 5000
O FALLON, IL 62269
St. Clair County (618) 641-5803
DR. ZACHARY BERG M.D.
Internal Medicine (Pulmonary Disease)
3 SAINT ELIZABETH BLVD STE 5000
O FALLON, IL 62269
St. Clair County (618) 641-5803
ELAYNA LEAH TEMARES FNP-BC
Nurse Practitioner
3 SAINT ELIZABETH BLVD STE 5000
O FALLON, IL 62269
St. Clair County (618) 641-5803
JENNIFER SCHAEFER APN
Nurse Practitioner (Family)
3 SAINT ELIZABETH BLVD STE 5000
O FALLON, IL 62269
St. Clair County (618) 641-5803
SPENCER PHILIP SHOLL
Physician Assistant
3 SAINT ELIZABETH BLVD STE 5000
O FALLON, IL 62269
St. Clair County (618) 641-5803
ADAKU MENNWA UZO-OKEREKE M.D.
Psychiatry & Neurology (Neurology)
3 SAINT ELIZABETH BLVD STE 5000
O FALLON, IL 62269
St. Clair County (618) 641-5803
RANDALL E DOOLEY MD
Urology
3 SAINT ELIZABETH BLVD STE 5000
O FALLON, IL 62269
St. Clair County (618) 641-5803

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 Roula Al-dahhak's NPI number?

The NPI number for Roula Al-dahhak is 1033116165. It was assigned to this individual provider in the NPPES registry on July 5, 2005.

Where is Roula Al-dahhak located?

Roula Al-dahhak practices at 3 Saint Elizabeth Blvd Ste 5000, O Fallon, IL 62269. The listed phone number is (618) 641-5803.

What is Roula Al-dahhak's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.

Is Roula Al-dahhak enrolled in Medicare?

Yes. Roula Al-dahhak 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 Roula Al-dahhak's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Roula Al-dahhak reassigns Medicare benefits to 3 organizations: Fairview Heights Medical Group Sc (Saint Louis, MO), Sjl Health Systems Inc (Pana, IL) and Southeast Missouri Hospital Physicians, LLC (Cape Girardeau, MO). 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 Roula Al-dahhak's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Roula Al-dahhak accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan and Ambetter of Oklahoma and 3 other insurers list Roula Al-dahhak 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 Roula Al-dahhak affiliated with any hospitals?

According to CMS data, Roula Al-dahhak is affiliated with Hshs Holy Family Hospital Inc, St Josephs Hospital, Hshs St Elizabeth's Hospital, Barnes-Jewish St Peters Hospital and Progress West Hospital.

When was this NPI record last updated?

The NPPES record for Roula Al-dahhak was last updated on September 29, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.