Marilyn Deguzman, DO
NPI 1780761718 · Family Medicine Physician · Pomona, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marilyn Deguzman, DO is a Family Medicine Physician provider in Pomona, CA (NPI 1780761718).
Provider details
- NPI number
- 1780761718
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Female
- Sole proprietor
- No
- License
- 20A10190 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 74 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 294 | 103 |
| Losartan Potassium | 202 | 67 |
| Rosuvastatin Calcium | 190 | 67 |
| Amlodipine Besylate | 162 | 61 |
| Levothyroxine Sodium | 140 | 47 |
| Metformin Hcl | 121 | 41 |
| Atenolol |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-01
- Last updated
- 2021-12-02
Frequently asked questions
- What is Marilyn Deguzman's NPI number?
- Marilyn Deguzman's National Provider Identifier (NPI) is 1780761718, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marilyn Deguzman's specialty?
- Marilyn Deguzman is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Marilyn Deguzman located?
- Marilyn Deguzman's practice location on file with NPPES is 1770 N Orange Grove Ave, Pomona, CA 91767-3027.
- What is Marilyn Deguzman's phone number?
- The practice phone number listed in the NPPES registry for Marilyn Deguzman is (909) 469-9494.
- Does Marilyn Deguzman accept Medicare?
- Marilyn Deguzman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marilyn Deguzman's NPI active?
- Yes — Marilyn Deguzman's NPI (1780761718) is active in the NPPES registry as of the last update on 2021-12-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.