Maximo Diamond, M.D.
NPI 1063519932 · Internal Medicine Physician · Orange, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Maximo Diamond, M.D. is a Internal Medicine Physician provider in Orange, CA (NPI 1063519932).
Provider details
- NPI number
- 1063519932
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- G74989 (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 · 30 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 83 | 26 |
| Tamsulosin Hcl | 74 | 20 |
| Apixabanbrand: Eliquis | 69 | 24 |
| Metformin Hcl | 60 | 23 |
| Losartan Potassium | 46 | 16 |
| Amlodipine Besylate | 32 | 17 |
| Atorvastatin Calcium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-20
- Last updated
- 2015-03-27
Frequently asked questions
- What is Maximo Diamond's NPI number?
- Maximo Diamond's National Provider Identifier (NPI) is 1063519932, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maximo Diamond's specialty?
- Maximo Diamond is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Maximo Diamond located?
- Maximo Diamond's practice location on file with NPPES is 600 City Parkway West, Orange, CA 92868-2900.
- What is Maximo Diamond's phone number?
- The practice phone number listed in the NPPES registry for Maximo Diamond is (714) 221-5182.
- Does Maximo Diamond accept Medicare?
- Maximo Diamond is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Maximo Diamond's NPI active?
- Yes — Maximo Diamond's NPI (1063519932) is active in the NPPES registry as of the last update on 2015-03-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.