Quick answers
- Does Helen Chang-Deguzman accept Medicare assignment?
- Yes. Medicare's clinician data says Helen Chang-Deguzman 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 Helen Chang-Deguzman see?
- In 2024, CMS data shows 686 Original Medicare patients and 3,060 services for Helen Chang-Deguzman. This counts Original Medicare only and measures volume, not quality.
- What is Helen Chang-Deguzman's NPI number?
- 1710989926. 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 Helen Chang-Deguzman, 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 | 686 |
|---|---|
| Services billed to Medicare | 3,060 |
| Different services or procedures | 28 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Injection, epoetin alfa-epbx, biosimilar, (retacrit) (for non-esrd use), 1000 units (Q5106)1,080 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)449 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)289 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)206 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)197 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%
- Chronic kidney disease75%
- Diabetes62%
- Arthritis46%
- Ischemic heart disease45%
Hospitals where Helen Chang-Deguzman works
Medicare's Facility Affiliation Data lists Helen Chang-Deguzman 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.
- Christiana HospitalNewark, DE · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 080001
- Union Hospital of Cecil CountyElkton, MD · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: not listed by Medicare · CCN 210032
Practice locations
Addresses where Helen Chang-Deguzman is enrolled with Medicare (CMS data updated October 2, 2026).
- 137 W High St, Suite 1aElkton, MD 21921 (410) 620‑9200
- 4735 Ogletown Stanton RdNewark, DE 19713
- 4755 Ogletown Stanton RdNewark, DE 19718
- 4923 Ogletown Stanton Rd, Suite 200Newark, DE 19713 (302) 225‑0451
Group practices
Medicare enrollment lists Helen Chang-Deguzman as a member of these groups (CMS data updated October 2, 2026).
- Christiana Care Health Services Inc1,483 clinicians in the group
- Nephrology Associates PA54 clinicians in the group
Specialties
- Nephrologyprimary
- Internal Medicinealso
Other nephrologists in Elkton
Clinicians with the same Medicare primary specialty in Elkton, MD — not a recommendation.
Other clinicians in Christiana Care Health Services Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Jefferson Medical College Of Thomas Jefferson University |
| Graduation year | 1996 (30 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1710989926 |
| 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