Ralph Da Graca, MD
NPI 1861430456 · Anesthesiology Physician · Orange, CA
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ralph Da Graca, MD is a Anesthesiology Physician provider in Orange, CA (NPI 1861430456).
Provider details
- NPI number
- 1861430456
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- A74313 (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
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
303 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) |
|---|---|---|
| Anesthesia for Lens Surgery00142 | 47 | $131 |
| Anesthesia for Electroshock Therapy00104 | 34 | $118 |
| Anesthesia for Other Procedure on Esophagus, Stomach, Or Upper Small Bowel Using an Endoscope00731 | 33 | $143 |
| Anesthesia for Exam of Colon Using an Endoscope00812 | 29 | $109 |
| Injection of Anesthetic Agent And/Or Steroid Into Thigh Nerve (femoral Nerve)64447 | 29 | $34 |
| Anesthesia for Procedure for Total Knee Joint Replacement01402 | 28 | $317 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$119 across 1 record (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
Registry dates
- Enumerated
- 2006-06-03
- Last updated
- 2014-02-25
Frequently asked questions
- What is Ralph Da Graca's NPI number?
- Ralph Da Graca's National Provider Identifier (NPI) is 1861430456, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ralph Da Graca's specialty?
- Ralph Da Graca is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Ralph Da Graca located?
- Ralph Da Graca's practice location on file with NPPES is 1100 W Stewart Dr, Orange, CA 92868-3849.
- What is Ralph Da Graca's phone number?
- The practice phone number listed in the NPPES registry for Ralph Da Graca is (714) 633-9111.
- Does Ralph Da Graca accept Medicare?
- Ralph Da Graca is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ralph Da Graca's NPI active?
- Yes — Ralph Da Graca's NPI (1861430456) is active in the NPPES registry as of the last update on 2014-02-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.