Myrna Castelazo, M.D.
NPI 1407290513 · Diagnostic Radiology Physician · Pleasanton, CA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Myrna Castelazo, M.D. is a Diagnostic Radiology Physician provider in Pleasanton, CA (NPI 1407290513).
Provider details
- NPI number
- 1407290513
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A133913 (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
13 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
6 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
2,914 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) |
|---|---|---|
| X-Ray of Chest, 1 View71045 | 691 | $10 |
| Screening 3d Breast Mammography77063 | 387 | $34 |
| Screening Mammography77067 | 387 | $43 |
| Ct Scan Head Or Brain Without Contrast70450 | 141 | $47 |
| Ct Scan of Abdomen and Pelvis With Contrast74177 | 138 | $100 |
| Screening 3d Breast Mammography77063 | 92 | $34 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$26 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
Additional practice locations (5)
- 798 S Winchester BlvdSan Jose, CA 95128-2928Phone: (408) 984-7226
- 400 W Pueblo StSanta Barbara, CA 93105-4353Phone: (805) 569-7279
- 1500 S Main StFt Worth, TX 76104Phone: (979) 218-4510
- 1500 S Main StFt Worth, TX 76104-4917Phone: (979) 218-4510
- 1500 S Main StFt Worth, TX 76104-4917Phone: (979) 218-4510
Registry dates
- Enumerated
- 2013-04-19
- Last updated
- 2025-05-12
- Certified
- 2025-05-12
Frequently asked questions
- What is Myrna Castelazo's NPI number?
- Myrna Castelazo's National Provider Identifier (NPI) is 1407290513, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Myrna Castelazo's specialty?
- Myrna Castelazo is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Myrna Castelazo located?
- Myrna Castelazo's practice location on file with NPPES is 5555 W Las Positas Blvd, Pleasanton, CA 94588-4000.
- What is Myrna Castelazo's phone number?
- The practice phone number listed in the NPPES registry for Myrna Castelazo is (925) 416-6789.
- Does Myrna Castelazo accept Medicare?
- Myrna Castelazo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Myrna Castelazo's NPI active?
- Yes — Myrna Castelazo's NPI (1407290513) is active in the NPPES registry as of the last update on 2025-05-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.