Ronaldo De Guzman, D.O.
NPI 1659478212 · Family Medicine Physician · Marlton, NJ
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ronaldo De Guzman, D.O. is a Family Medicine Physician provider in Marlton, NJ (NPI 1659478212).
Provider details
- NPI number
- 1659478212
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- Yes
- License
- MB065660 (NJ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 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
2,787 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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 722 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 598 | $93 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 585 | $78 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 192 | $15 |
| Administration of Influenza Virus VaccineG0008 | 182 | $34 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 118 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 666 | 205 |
| Amlodipine Besylate | 415 | 123 |
| Losartan Potassium | 387 | 119 |
| Levothyroxine Sodium | 315 | 83 |
| Alprazolam | 291 | 66 |
| Metformin Hcl | 230 | 68 |
| Lisinopril |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$33 across 2 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
- 2006-09-17
- Last updated
- 2025-08-15
- Certified
- 2025-08-15
Frequently asked questions
- What is Ronaldo De Guzman's NPI number?
- Ronaldo De Guzman's National Provider Identifier (NPI) is 1659478212, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ronaldo De Guzman's specialty?
- Ronaldo De Guzman is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ronaldo De Guzman located?
- Ronaldo De Guzman's practice location on file with NPPES is 105 Evesboro Medford Rd Ste I, Marlton, NJ 08053-3865.
- What is Ronaldo De Guzman's phone number?
- The practice phone number listed in the NPPES registry for Ronaldo De Guzman is (856) 596-9050.
- Does Ronaldo De Guzman accept Medicare?
- Ronaldo De Guzman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ronaldo De Guzman's NPI active?
- Yes — Ronaldo De Guzman's NPI (1659478212) is active in the NPPES registry as of the last update on 2025-08-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.