Rizwan Mahmood, MD
NPI 1699337683 · Internal Medicine Physician · Downers Grove, IL
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Rizwan Mahmood, MD is a Internal Medicine Physician provider in Downers Grove, IL (NPI 1699337683).
Provider details
- NPI number
- 1699337683
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 036-162350 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
6 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
493 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 146 | $94 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 134 | $132 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 36 | $141 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 33 | $187 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 28 | $4 |
| Annual Wellness Visit; Includes a Personalized Prevention Plan of Service (pps), Initial Visit |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 43 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 95 | 40 |
| Losartan Potassium | 78 | 20 |
| Amlodipine Besylate | 59 | 26 |
| Levothyroxine Sodium | 55 | 15 |
| Tamsulosin Hcl | 51 | 15 |
| Metformin Hcl | 48 | 16 |
| Furosemide | 38 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$180 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
Registry dates
- Enumerated
- 2019-07-01
- Last updated
- 2025-01-28
- Certified
- 2025-01-28
Frequently asked questions
- What is Rizwan Mahmood's NPI number?
- Rizwan Mahmood's National Provider Identifier (NPI) is 1699337683, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Rizwan Mahmood's specialty?
- Rizwan Mahmood is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Rizwan Mahmood located?
- Rizwan Mahmood's practice location on file with NPPES is 3743 Highland Ave Ste 1001, Downers Grove, IL 60515-1594.
- What is Rizwan Mahmood's phone number?
- The practice phone number listed in the NPPES registry for Rizwan Mahmood is (630) 963-9667.
- Does Rizwan Mahmood accept Medicare?
- Rizwan Mahmood is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Rizwan Mahmood's NPI active?
- Yes — Rizwan Mahmood's NPI (1699337683) 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.