Quick answers
- Does Antje L. Greenfield accept Medicare assignment?
- Yes. Medicare's clinician data says Antje L. Greenfield 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 Antje L. Greenfield see?
- In 2024, CMS data shows 586 Original Medicare patients and 949 services for Antje L. Greenfield. This counts Original Medicare only and measures volume, not quality.
- What is Antje L. Greenfield's NPI number?
- 1154398816. 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 Antje L. Greenfield, 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 | 586 |
|---|---|
| Services billed to Medicare | 949 |
| Different services or procedures | 110 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Complete ultrasound scan of joint (76881)98 services
- Screening 3d breast mammography (77063)98 services
- Screening mammography (77067)97 services
- Fine needle aspiration biopsy using ultrasound guidance, first growth (10005)71 services
- X-ray of chest, 1 view (71045)54 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 cholesterol75%
- High blood pressure72%
- Arthritis60%
- Ischemic heart disease31%
- Diabetes27%
- Anxiety25%
Hospitals where Antje L. Greenfield works
Medicare's Facility Affiliation Data lists Antje L. Greenfield 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.
- Chester County HospitalWest Chester, PA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 390179
- Hospital of University of PennsylvaniaPhiladelphia, PA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 390111
- Penn Presbyterian Medical CenterPhiladelphia, PA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 390223
- Phoenixville HospitalPhoenixville, PA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 390127
Practice locations
Addresses where Antje L. Greenfield is enrolled with Medicare (CMS data updated October 2, 2026).
- 1006 Mantua PikeWoodbury, NJ 08097 (856) 686‑8282
- 1865 Route 70 E 130, Rad Cherry HillCherry Hill, NJ 08003 (856) 433‑2535
- 3400 Spruce StPhiladelphia, PA 19104 (215) 662‑3000
Group practices
Medicare enrollment lists Antje L. Greenfield as a member of these groups (CMS data updated October 2, 2026).
- University of Penn - Medical Group3,505 clinicians in the group
- Clinical Health Care Associates of New Jersey PC797 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Woodbury
Clinicians with the same Medicare primary specialty in Woodbury, NJ — not a recommendation.
Other clinicians in University of Penn - Medical Group
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1996 (30 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1154398816 |
| 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