Maximiliano Hyon, D.O.
NPI 1942626767 · Endocrinology, Diabetes & Metabolism Physician · Fullerton, CA
Enrolled with Medicare as Practitioner - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Maximiliano Hyon, D.O. is a Endocrinology, Diabetes & Metabolism Physician provider in Fullerton, CA (NPI 1942626767).
Provider details
- NPI number
- 1942626767
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 20A13210 (CA)
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
12 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
796 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 | 268 | $144 |
| Hemoglobin A1c Level83036 | 117 | $10 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 111 | $85 |
| 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 | 107 | $18 |
| Continuous Monitoring of Blood Sugar Level in Tissue Fluid Using Sensor Under Skin With Interpretation and Report95251 | 74 | $38 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 86 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Empagliflozinbrand: Jardiance | 687 | 186 |
| Semaglutidebrand: Ozempic | 676 | 137 |
| Metformin Hcl | 546 | 183 |
| Atorvastatin Calcium | 393 | 151 |
| Pen Needle, Diabeticbrand: Nano 2nd Gen Pen Needle | 342 | 140 |
| Tirzepatidebrand: Mounjaro | 293 | 60 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,544 across 74 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)
- 1414 S Grand Ave Ste 456Los Angeles, CA 90015-3071Phone: (213) 745-6047Fax: (213) 748-9715
Registry dates
- Enumerated
- 2014-03-17
- Last updated
- 2026-01-16
- Certified
- 2026-01-16
Frequently asked questions
- What is Maximiliano Hyon's NPI number?
- Maximiliano Hyon's National Provider Identifier (NPI) is 1942626767, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maximiliano Hyon's specialty?
- Maximiliano Hyon is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Maximiliano Hyon located?
- Maximiliano Hyon's practice location on file with NPPES is 100 E Valencia Mesa Dr Ste 105, Fullerton, CA 92835-3816.
- What is Maximiliano Hyon's phone number?
- The practice phone number listed in the NPPES registry for Maximiliano Hyon is (714) 446-5640.
- Does Maximiliano Hyon accept Medicare?
- Maximiliano Hyon is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Maximiliano Hyon's NPI active?
- Yes — Maximiliano Hyon's NPI (1942626767) is active in the NPPES registry as of the last update on 2026-01-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.