Gerald Sugino, M.D.
NPI 1427036284 · Internal Medicine Physician · Mission Viejo, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gerald Sugino, M.D. is a Internal Medicine Physician provider in Mission Viejo, CA (NPI 1427036284).
Provider details
- NPI number
- 1427036284
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G50977 (CA)
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
20 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
835 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) |
|---|---|---|
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 464 | $51 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 125 | $119 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 111 | $81 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 74 | $179 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 36 | $135 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 17 | 15 |
| Methylprednisolone | 14 | 13 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 12 | 12 |
| Cefdinir | 12 | 12 |
| Levofloxacin | 12 | 11 |
| Pantoprazole Sodium | 12 | — |
| Ondansetronbrand: Ondansetron Odt | 11 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$400 across 15 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)
- 26800 Crown Valley PkwySuite 315Mission Viejo, CA 92691-6384Phone: (949) 364-6000Fax: (949) 364-1204
Registry dates
- Enumerated
- 2006-01-03
- Last updated
- 2021-11-10
- Certified
- 2021-11-10
Frequently asked questions
- What is Gerald Sugino's NPI number?
- Gerald Sugino's National Provider Identifier (NPI) is 1427036284, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gerald Sugino's specialty?
- Gerald Sugino is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Gerald Sugino located?
- Gerald Sugino's practice location on file with NPPES is 26732 Crown Valley Pkwy Ste 170, Mission Viejo, CA 92691-6337.
- What is Gerald Sugino's phone number?
- The practice phone number listed in the NPPES registry for Gerald Sugino is (949) 365-2444.
- Does Gerald Sugino accept Medicare?
- Gerald Sugino is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gerald Sugino's NPI active?
- Yes — Gerald Sugino's NPI (1427036284) is active in the NPPES registry as of the last update on 2021-11-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.