Quick answers
- Does Muhammad Usman Zafar accept Medicare assignment?
- Yes. Medicare's clinician data says Muhammad Usman Zafar accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Muhammad Usman Zafar see?
- In 2024, CMS data shows 471 Original Medicare patients and 1,019 services for Muhammad Usman Zafar. This counts Original Medicare only and measures volume, not quality.
- What is Muhammad Usman Zafar's NPI number?
- 1679955660. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Muhammad Usman Zafar, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 471 |
|---|---|
| Services billed to Medicare | 1,019 |
| Different services or procedures | 9 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)520 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)253 services
- Hospital discharge day management, more than 30 minutes (99239)161 services
- Hospital discharge day management, 30 minutes or less (99238)42 services
- Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)28 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Arthritis59%
- Chronic kidney disease55%
- Ischemic heart disease49%
- Heart failure49%
Hospitals where Muhammad Usman Zafar works
Medicare's Facility Affiliation Data lists Muhammad Usman Zafar at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Lehigh Valley HospitalAllentown, PA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 390133
- Lehigh Valley Hospital - MacungieMacungie, PA · Acute Care Hospital · Emergency services: listed by Medicare · CCN 390430
Practice locations
Addresses where Muhammad Usman Zafar is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 9; the Medicare profile lists all.
- 1200 S Cedar Crest BlvdAllentown, PA 18103
- 1200 S Cedar Crest Blvd 3rd Fl Kasych, Lvpg Burn SurgeryAllentown, PA 18103 (610) 402‑8355
- 1200 S Cedar Crest Blvd Fl, 1 Lvpg NephrologyAllentown, PA 18103 (610) 402‑8510
- 1210 S Cedar Crest BlvdAllentown, PA 18103 (610) 402‑3888
- 2100 Mack Blvd, Fl 4Allentown, PA 18103
Group practices
Medicare enrollment lists Muhammad Usman Zafar as a member of this group (CMS data updated October 2, 2026).
- Lehigh Valley Physician Group2,542 clinicians in the group
Specialties
- Hospitalistprimary
Other hospitalists in Allentown
Clinicians with the same Medicare primary specialty in Allentown, PA — not a recommendation.
Other clinicians in Lehigh Valley Physician Group
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2011 (15 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1679955660 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians