Muhammad Usman Zafar, M.D.
NPI 1679955660 · Hospitalist Physician · Allentown, PA
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Muhammad Usman Zafar, M.D. is a Hospitalist Physician provider in Allentown, PA (NPI 1679955660).
Provider details
- NPI number
- 1679955660
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MD464635 (PA)
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
10 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
1,015 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 | 520 | $73 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 253 | $111 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 161 | $106 |
| Hospital Discharge Day Management, 30 Minutes Or Less99238 | 42 | $75 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 28 | $164 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 11 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metoprolol Succinate | 26 | 18 |
| Apixabanbrand: Eliquis | 19 | 13 |
| Atorvastatin Calcium | 16 | — |
| Clopidogrel Bisulfatebrand: Clopidogrel | 15 | — |
| Cefpodoxime Proxetil | 15 | 15 |
| Pantoprazole Sodium | 13 | 11 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$20 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
- 2015-06-25
- Last updated
- 2025-12-18
- Certified
- 2025-12-18
Frequently asked questions
- What is Muhammad Usman Zafar's NPI number?
- Muhammad Usman Zafar's National Provider Identifier (NPI) is 1679955660, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Muhammad Usman Zafar's specialty?
- Muhammad Usman Zafar is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Muhammad Usman Zafar located?
- Muhammad Usman Zafar's practice location on file with NPPES is 1200 S Cedar Crest Blvd, Allentown, PA 18103.
- What is Muhammad Usman Zafar's phone number?
- The practice phone number listed in the NPPES registry for Muhammad Usman Zafar is (610) 402-5369.
- Does Muhammad Usman Zafar accept Medicare?
- Muhammad Usman 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 Usman Zafar's NPI active?
- Yes — Muhammad Usman Zafar's NPI (1679955660) is active in the NPPES registry as of the last update on 2025-12-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.