Alyssa Watanabe, MD
NPI 1780660472 · Neuroradiology Physician · Los Angeles, CA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alyssa Watanabe, MD is a Neuroradiology Physician provider in Los Angeles, CA (NPI 1780660472).
Provider details
- NPI number
- 1780660472
- Entity type
- Individual
- Primary specialty
- Neuroradiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- G63862 (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
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
423 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) |
|---|---|---|
| Screening Mammography77067 | 263 | $145 |
| Screening 3d Breast Mammography77063 | 76 | $57 |
| Diagnostic Digital Breast Tomosynthesis, Unilateral Or Bilateral (list Separately in Addition to 77065 Or 77066)G0279 | 32 | $52 |
| Complete Ultrasound Scan of 1 Breast76641 | 20 | $154 |
| Diagnostic Mammography of Both Breasts77066 | 19 | $180 |
| Diagnostic Mammography of 1 Breast77065 | 13 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$117 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
- 2005-12-15
- Last updated
- 2021-11-29
- Certified
- 2021-11-29
Frequently asked questions
- What is Alyssa Watanabe's NPI number?
- Alyssa Watanabe's National Provider Identifier (NPI) is 1780660472, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alyssa Watanabe's specialty?
- Alyssa Watanabe is listed in the NPPES registry with a primary specialty of Neuroradiology Physician (Allopathic & Osteopathic Physicians).
- Where is Alyssa Watanabe located?
- Alyssa Watanabe's practice location on file with NPPES is 1500 San Pablo St Fl 2, Los Angeles, CA 90033-5313.
- What is Alyssa Watanabe's phone number?
- The practice phone number listed in the NPPES registry for Alyssa Watanabe is (323) 442-8541.
- Does Alyssa Watanabe accept Medicare?
- Alyssa Watanabe is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alyssa Watanabe's NPI active?
- Yes — Alyssa Watanabe's NPI (1780660472) is active in the NPPES registry as of the last update on 2021-11-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.