Helen Chang-Deguzman, M.D.
NPI 1710989926 · Nephrology Physician · Elkton, MD
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Helen Chang-Deguzman, M.D. is a Nephrology Physician provider in Elkton, MD (NPI 1710989926).
Provider details
- NPI number
- 1710989926
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- C1-0006336 (DE)
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
21 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
1,855 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 369 | $99 |
| 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'SG2211 | 289 | $16 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 206 | $79 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 197 | $114 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 188 | $77 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 32 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Furosemide | 129 | 57 |
| Spironolactone | 100 | 29 |
| Losartan Potassium | 91 | 32 |
| Lisinopril | 82 | 32 |
| Dapagliflozin Propanediolbrand: Farxiga | 76 | 24 |
| Amlodipine Besylate | 61 | 26 |
| Carvedilol | 58 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,390 across 59 records (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
- 2005-06-01
- Last updated
- 2021-06-17
- Certified
- 2021-06-17
Frequently asked questions
- What is Helen Chang-Deguzman's NPI number?
- Helen Chang-Deguzman's National Provider Identifier (NPI) is 1710989926, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Helen Chang-Deguzman's specialty?
- Helen Chang-Deguzman is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Helen Chang-Deguzman located?
- Helen Chang-Deguzman's practice location on file with NPPES is 137 W High St, Elkton, MD 21921-8604.
- What is Helen Chang-Deguzman's phone number?
- The practice phone number listed in the NPPES registry for Helen Chang-Deguzman is (410) 620-9200.
- Does Helen Chang-Deguzman accept Medicare?
- Helen Chang-Deguzman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Helen Chang-Deguzman's NPI active?
- Yes — Helen Chang-Deguzman's NPI (1710989926) is active in the NPPES registry as of the last update on 2021-06-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.