Muhammad Zafar, MD
NPI 1811985856 · Internal Medicine Physician · Flanagan, IL
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Muhammad Zafar, MD is a Internal Medicine Physician provider in Flanagan, IL (NPI 1811985856).
Provider details
- NPI number
- 1811985856
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 036046404 (IL)
Specialties & taxonomies
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
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
4,117 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 1,791 | $114 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 879 | $96 |
| Infusion Into a Vein for Therapy, Prevention, Or Diagnosis, 1 Hour Or Less96365 | 440 | $53 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 386 | $13 |
| Administration of Chemotherapy Into Vein, 1 Hour Or Less96413 | 142 | $109 |
| Injection of Additional New Drug Or Substance Into Vein96375 | 99 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 194 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 744 | 117 |
| Furosemide | 482 | 74 |
| Gabapentin | 474 | 82 |
| Pantoprazole Sodium | 421 | 81 |
| Tramadol Hcl | 411 | 70 |
| Metoprolol Succinate | 368 | 56 |
| Potassium Chloride | 354 | 63 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$438 across 9 records (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 (1)
- 122 S Main StFlanagan, IL 61740-7536Phone: (815) 796-4436Fax: (815) 796-2836
Registry dates
- Enumerated
- 2005-10-13
- Last updated
- 2025-06-03
- Certified
- 2025-06-02
Frequently asked questions
- What is Muhammad Zafar's NPI number?
- Muhammad Zafar's National Provider Identifier (NPI) is 1811985856, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Muhammad Zafar's specialty?
- Muhammad Zafar is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Muhammad Zafar located?
- Muhammad Zafar's practice location on file with NPPES is Po Box 190, Flanagan, IL 61740-0190.
- What is Muhammad Zafar's phone number?
- The practice phone number listed in the NPPES registry for Muhammad Zafar is (815) 796-4436.
- Does Muhammad Zafar accept Medicare?
- Muhammad Zafar is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Muhammad Zafar's NPI active?
- Yes — Muhammad Zafar's NPI (1811985856) is active in the NPPES registry as of the last update on 2025-06-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.