Ramadan Hammoud, M.D.
NPI 1134328719 · Endocrinology, Diabetes & Metabolism Physician · Crystal Lake, IL
Enrolled with Medicare as Practitioner - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ramadan Hammoud, M.D. is a Endocrinology, Diabetes & Metabolism Physician provider in Crystal Lake, IL (NPI 1134328719).
Provider details
- NPI number
- 1134328719
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 11188 (SD)
Specialties & taxonomies
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 tenure25% of score
18 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
5 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
181 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 156 | $77 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 25 | $126 |
Typical Medicare-allowed amounts for these services range $77–$126 (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 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Semaglutidebrand: Ozempic | 40 | 23 |
| Levothyroxine Sodium | 34 | 21 |
| Tirzepatidebrand: Mounjaro | 17 | — |
| Insulin Degludecbrand: Tresiba Flextouch U-100 | 16 | — |
| Glipizide | 15 | — |
| Empagliflozinbrand: Jardiance | 15 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$18 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (4)
- 9745 Touchton Rd Unit 1705Jacksonville, FL 32246-9200Phone: (616) 391-3139
- 1223 Gateway Dr Ste 1fMelbourne, FL 32901-2607Phone: (321) 215-4910
- 7 Blanchard Cir Ste 202Wheaton, IL 60189-2039Phone: (630) 208-6775Fax: (630) 208-7937
- 1305 W 18th StSioux Falls, SD 57105-0401Phone: (605) 328-8700
Registry dates
- Enumerated
- 2007-07-13
- Last updated
- 2025-01-28
- Certified
- 2025-01-28
Frequently asked questions
- What is Ramadan Hammoud's NPI number?
- Ramadan Hammoud's National Provider Identifier (NPI) is 1134328719, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ramadan Hammoud's specialty?
- Ramadan Hammoud is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Ramadan Hammoud located?
- Ramadan Hammoud's practice location on file with NPPES is 360 Station Dr Ste 300, Crystal Lake, IL 60014-8003.
- What is Ramadan Hammoud's phone number?
- The practice phone number listed in the NPPES registry for Ramadan Hammoud is (815) 344-3900.
- Does Ramadan Hammoud accept Medicare?
- Ramadan Hammoud is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ramadan Hammoud's NPI active?
- Yes — Ramadan Hammoud's NPI (1134328719) is active in the NPPES registry as of the last update on 2025-01-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.