Roula Al-Dahhak, M.D.
NPI 1033116165 · Neurology Physician · O Fallon, IL
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Roula Al-Dahhak, M.D. is a Neurology Physician provider in O Fallon, IL (NPI 1033116165).
Provider details
- NPI number
- 1033116165
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 036176244 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
67 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 48 | $128 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 19 | $77 |
Typical Medicare-allowed amounts for these services range $77–$128 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 1 distinct drug on file.
| Drug | Part D claims (2024) |
|---|---|
| Gabapentin | 22 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (2)
- 915 N Grand Blvd # A-139Saint Louis, MO 63106-1621Phone: (314) 652-4100
- 70 Jungermann Cir Ste 300Saint Peters, MO 63376-1637Phone: (636) 916-7060
Registry dates
- Enumerated
- 2005-07-05
- Last updated
- 2025-09-29
- Certified
- 2025-09-29
Frequently asked questions
- What is Roula Al-Dahhak's NPI number?
- Roula Al-Dahhak's National Provider Identifier (NPI) is 1033116165, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Roula Al-Dahhak's specialty?
- Roula Al-Dahhak is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Roula Al-Dahhak located?
- Roula Al-Dahhak's practice location on file with NPPES is 3 Saint Elizabeth Blvd Ste 5000, O Fallon, IL 62269-1282.
- What is Roula Al-Dahhak's phone number?
- The practice phone number listed in the NPPES registry for Roula Al-Dahhak is (618) 641-5803.
- Does Roula Al-Dahhak accept Medicare?
- Roula Al-Dahhak is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Roula Al-Dahhak's NPI active?
- Yes — Roula Al-Dahhak's NPI (1033116165) is active in the NPPES registry as of the last update on 2025-09-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.