Greg Maler, DO
NPI 1033613104 · Family Medicine Physician · Pomona, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Greg Maler, DO is a Family Medicine Physician provider in Pomona, CA (NPI 1033613104).
Provider details
- NPI number
- 1033613104
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 20A17625 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
8 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 · 56 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 270 | 76 |
| Amlodipine Besylate | 239 | 66 |
| Lisinopril | 148 | 37 |
| Metformin Hcl | 129 | 30 |
| Semaglutidebrand: Ozempic | 112 | 13 |
| Omeprazole | 86 | 26 |
| Gabapentin |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$48 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
Additional practice locations (1)
- 1700 E Saunders StLaredo, TX 78041Phone: (956) 796-5000Fax: (956) 796-4933
Registry dates
- Enumerated
- 2018-03-22
- Last updated
- 2021-08-10
- Certified
- 2021-07-16
Frequently asked questions
- What is Greg Maler's NPI number?
- Greg Maler's National Provider Identifier (NPI) is 1033613104, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Greg Maler's specialty?
- Greg Maler is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Greg Maler located?
- Greg Maler's practice location on file with NPPES is 1450 E Holt Ave, Pomona, CA 91767-5822.
- What is Greg Maler's phone number?
- The practice phone number listed in the NPPES registry for Greg Maler is (909) 630-7927.
- Does Greg Maler accept Medicare?
- Greg Maler is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Greg Maler's NPI active?
- Yes — Greg Maler's NPI (1033613104) is active in the NPPES registry as of the last update on 2021-08-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.