Quick answers
- Does Najamuz Zaman accept Medicare assignment?
- Yes. Medicare's clinician data says Najamuz Zaman 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 Najamuz Zaman see?
- In 2024, CMS data shows 277 Original Medicare patients and 916 services for Najamuz Zaman. This counts Original Medicare only and measures volume, not quality.
- What is Najamuz Zaman's NPI number?
- 1992734172. 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 Najamuz Zaman, 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 | 277 |
|---|---|
| Services billed to Medicare | 916 |
| Different services or procedures | 14 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)461 services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)201 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)118 services
- Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)48 services
- New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)18 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%
- Arthritis45%
- Chronic kidney disease38%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)34%
- Diabetes32%
Hospitals where Najamuz Zaman works
Medicare's Facility Affiliation Data lists Najamuz Zaman 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.
- Lancaster General HospitalLancaster, PA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 390100
- Milton S Hershey Medical CenterHershey, PA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 390256
- Penn State Health Lancaster Medical CenterLancaster, PA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 390339
- UPMC LititzLititz, PA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 390068
Practice locations
Addresses where Najamuz Zaman is enrolled with Medicare (CMS data updated October 2, 2026).
- 500 Universidy DrHershey, PA 17033 (717) 531‑8395
Group practices
Medicare enrollment lists Najamuz Zaman as a member of this group (CMS data updated October 2, 2026).
- The Milton S Hershey Medical Center Physicians Group1,623 clinicians in the group
Specialties
- Hematology/Oncologyprimary
Other hematologist-oncologists in Hershey
Clinicians with the same Medicare primary specialty in Hershey, PA — not a recommendation.
Other clinicians in The Milton S Hershey Medical Center Physicians Group
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1985 (41 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1992734172 |
| 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